Cerebrum IQ combines a low priced trial with a membership that can renew automatically. This review checks what the result can support, what a buyer receives and which terms must be saved before payment.
Cerebrum IQ evaluated as both a score experience and a recurring purchase with separate evidence questions.
0 What Cerebrum IQ Is and Who It Is For
Cerebrum IQ is a consumer facing online IQ test attached to a recurring subscription. You answer a short battery of reasoning items on the web, and the score is delivered behind a paid membership that starts with a token charge and then renews on a weekly or monthly cycle until you stop it. That sentence describes the product more accurately than any of its marketing copy does, and it is the single fact that should shape how you read everything else on this page.
The reason to be blunt about the structure early is that Cerebrum IQ is not really sold as a subscription. It is sold as a test. The visible offer is a curiosity, your IQ, for roughly the price of a stick of gum, and the recurring part arrives afterward as the mechanism that keeps your result unlocked. Neither half of that is hidden, exactly. Cerebrum IQ's own help center and terms describe the renewal plainly. But the emphasis in the funnel and the emphasis in the fine print point in opposite directions, and buyers who read only the first one end up surprised.
Who is it actually for? On the evidence the company publishes, the honest answer is: someone who wants a fast, entertaining score with a certificate at the end, who understands they are opening a subscription, and who will diarize the cancellation date. Cerebrum IQ's own terms call it "an educational-entertainment product" and state that its assessments are "not a clinical assessment, they are not a diagnostic tool." That is the provider's framing, not a critic's, and it is the most useful sentence on the entire site. If your reason for testing is anything heavier than curiosity, a school placement, a workplace question, a suspicion about a learning difference, the vendor has already told you this is the wrong instrument.
One condition applies to everything below. When we checked the site in August 2026, several Cerebrum IQ pages displayed a notice reading "New sign-ups are currently unavailable" and "We're not accepting new registrations right now," with existing account holders still able to sign in and view results. We do not know why, whether it is temporary, or whether it will have changed by the time you read this. It does mean that if you arrived here trying to buy, you may find you cannot, and that if you arrived here because you were already charged, the account and billing pages are the ones that matter to you.
Who wrote this and why that matters
This review was written by the team behind ACIS, which sells a competing assessment. Treat it as an informed competitor's evaluation, not a neutral third party audit. Everything below is checkable: we describe only what the provider publishes publicly, we date every price, and we link to the source so you can verify it yourself. Where we could not confirm something, we say so instead of guessing.
1 How This Review Was Built, and Its Limits
A competitor reviewing a competitor has an obvious incentive to be unfair, so the only way this page earns your attention is by making its own reasoning inspectable. Here is exactly what we did and what we deliberately did not do.
What we did: read the public pages Cerebrum IQ publishes at cerebrumiq.com, specifically the terms and conditions, the privacy policy and the help center, including its articles on renewal and on unexpected charges. We quote those documents rather than paraphrasing them, because in a category where wording is the product, paraphrase is where accuracy goes to die. We also looked at what third parties publish: Trustpilot, the Better Business Bureau, and consumer complaint sites. Those are labeled as third party reports every time they appear, never as our findings.
What we did not do: we did not purchase a subscription, sit the test, or generate a score, so this page contains no claim of the form "we took it and got X." Any review that tells you a specific score it earned on a specific day is telling you about one administration by one person, which is not evidence about an instrument anyway. We also did not assign a numeric rating. Grades out of fifty look rigorous and are usually just a mood converted into arithmetic, and a rating you cannot audit is worse than no rating. Instead you get a prose judgment plus a table of strengths and limitations you can check line by line against the sources.
One more boundary, and it is the important one. Where we report that something is not published, that is a statement about what a member of the public can find, not an accusation. "We could not locate a technical manual with reliability coefficients" and "this test has no reliability" are completely different claims, and only the first one is defensible from the outside. A company can hold internal data it has chosen not to release. What we can evaluate is what a buyer is able to inspect before paying, which is the only thing that helps you decide.
2 What It Measures and What the Items Look Like
This is where the public record thins out fast. As of August 2026, the pages we could reach on the official site do not publish an item count, a time limit, a subtest structure, or a list of the cognitive domains the battery is designed to sample. What the marketing does say is that the test covers something like reaction, memory, speed, logic and focus in around ten minutes. Those are ordinary consumer words, not construct names, and the distinction matters more than it sounds. If you want to see what a construct name looks like once it is attached to an actual item, our tour of what real IQ test questions look like works through verbal analogies, number series and matrix problems with the ability each one samples named beside it.
Serious cognitive assessment is organized around a small set of broad abilities with agreed definitions: verbal comprehension, fluid reasoning, visual spatial processing, working memory, processing speed and quantitative reasoning. Each is measured by multiple tasks, precisely because a single task confounds the ability with the format. "Logic" is not one of those abilities. It is a folk category that overlaps fluid reasoning, quantitative reasoning and general knowledge in proportions nobody can pin down without seeing the items. When a test describes its coverage in folk categories, you cannot tell whether it samples three abilities or one ability three times, and that ambiguity is not a small problem: it decides whether a composite score means anything at all. If this framing is new to you, our page on what IQ tests actually measure lays out the domain structure in more detail.
From third party reviews and user posts, a fairly consistent picture emerges of a roughly thirty item test, largely visual pattern and sequence style questions, taken in one sitting and ending in a downloadable certificate. We report that as what other people describe, because it is not on the official pages we read, and because the format may well have changed across versions. Treat it as a working expectation rather than a specification.
Thirty items is not automatically disqualifying. Plenty of respectable short screeners run in that range. But item count interacts with breadth in a way that is easy to miss: thirty items spread across six domains is five items per domain, and five items cannot produce a stable domain estimate for an individual. So a short test can be defensible as a single global estimate, or it can offer a rich profile of separate strengths, but not both at once. A report that shows you a breakdown across several cognitive areas from a thirty item test is showing you a picture with far more precision than the underlying measurement can support.
3 How It Is Scored and What It Reports
An IQ score is not a count of correct answers. It is a position on a distribution, which means it only exists relative to a reference group. Two questions therefore decide whether any reported number is interpretable: which population is the comparison, and how were the raw responses converted into the scale. For Cerebrum IQ, we could not locate public documents answering either one. Testing has already abandoned one answer to those two questions: the mental age quotient, mental age divided by chronological age and multiplied by 100, gave way to deviation scores precisely because a quotient means nothing without a defined comparison group standing behind it.
That absence has practical consequences. A score of 120 means "higher than roughly 91 percent of the reference group," so if the reference group is undocumented, 120 does not mean 91st percentile of anything you can name. It might mean 91st percentile of a demographically balanced adult sample. It might mean 91st percentile of people who clicked an advertisement for an IQ test at two in the morning. Those are different worlds and the number looks identical in both. Our IQ percentile chart shows how tightly score and rarity are coupled once the norms are known, which is exactly why unknown norms make a number decorative rather than informative.
Descriptions from users and third party reviewers indicate the output includes an overall IQ figure, some breakdown across cognitive areas, a percentile comparison and a personalized certificate. Certificates are worth a comment of their own, since they are a recurring feature of this category. A certificate is a graphic design decision, not a measurement property. It carries no institutional recognition, no examiner attestation and no accreditation, and no school, employer or clinician treats one as evidence. It exists because it is satisfying to receive and easy to share, which is a marketing insight rather than a psychometric one.
The other thing a score report should carry, and that consumer tests almost never do, is a confidence interval. Every measurement has error. Professional batteries report an individual's index scores as ranges, something like "112, with a 95 percent confidence interval of 106 to 118," because the point estimate alone implies a precision the instrument does not have. A single naked integer, presented with no band around it, is the clearest signal in the entire category that a score is being sold as a certainty rather than reported as an estimate. If you take Cerebrum IQ or any similar product, mentally add a range of at least several points on either side of whatever number you receive, and more if the test was short.
4 The Technical Evidence: Published and Absent
Here is the checklist a psychometrician would run against any instrument claiming to produce an IQ, and what a member of the public can currently find for Cerebrum IQ.
A technical manual. We could not locate a public technical document for Cerebrum IQ describing item development, scaling, or score derivation. Nothing on the site we read points to one.
Norm sample documentation. No public description of who the reference population is, how many people it contains, how they were recruited, or how age is handled in scoring.
Reliability coefficients. No published internal consistency figures, no test retest stability data, no standard error of measurement for the reported score.
Validity evidence. No published correlations with established batteries, no factor analytic work, no criterion studies. The company's terms state directly that "effectiveness has not been independently validated, individual results vary."
Stated intended use. This one is published, and clearly. The terms describe the product as educational entertainment and rule out academic, professional and medical decisions.
The last item deserves more credit than reviews of this category usually give it. A vendor that writes down what its product is not for has done something genuinely useful, and it resolves most of the argument about accuracy before it starts. You do not need a reliability coefficient to know that a company describing its own test as entertainment is not offering you a clinical measurement. The tension in the product is that this candor lives in the terms while the funnel is built on the promise of discovering your true intelligence, and most buyers read only one of those two documents.
It is also worth naming the asymmetry that makes this category hard to evaluate. Publishing a technical manual costs real money and invites criticism, while publishing nothing costs nothing and invites nothing. A consumer market where buyers cannot tell the difference therefore rewards silence. That is not a claim about any one company's motives; it is the shape of the incentive that every buyer in this category is up against, and the reason the burden of proof belongs on the number rather than on your doubt.
5 Price and Billing Model as of August 2026
This is the section people arrive for, so the numbers below are quoted from Cerebrum IQ's own documents on the dates given, with the caveat that prices change and the live checkout is always the authority. If what you see at payment differs from what you read here, believe the checkout and treat this page as out of date.
As of August 2026, the Cerebrum IQ terms and conditions listed subscription rates as weekly plans of $9.99 Basic and $14.99 Premium, and monthly plans of $14.99 promotional and $29.99 standard, preceded by a trial giving "seven days of full premium access." Two official pages state the trial charge slightly differently: the terms give $1.00, while the help center article on renewal states that "all subscriptions begin with a 7-day trial period for $0.99." The gap is a penny and changes nothing financially, but it does tell you something useful about how closely the published documents track each other, and it is a good reason to screenshot your actual checkout rather than rely on any page, ours included.
Trial charge
Listed as $0.99 in the help center and $1.00 in the terms, for a seven day period of full access, as of August 2026.
Weekly Basic
$9.99 per week in the published terms. Over a year that is roughly $519 if left running.
Weekly Premium
$14.99 per week in the published terms, roughly $779 annually at that cadence.
Monthly promotional
$14.99 per month, the introductory monthly tier listed in the terms.
Monthly standard
$29.99 per month, the headline monthly rate, roughly $360 across a year.
Renewal behavior
The help center states that "all subscriptions automatically renew until canceled" and that cancellation must happen before the renewal date.
The weekly cadence is the detail most likely to catch people out, because a weekly plan compounds into an annual figure that no buyer of a ten minute quiz has in mind. A $14.99 weekly plan costs more per year than most professional software subscriptions, and it accrues in small increments that individually look too trivial to investigate on a statement. If you buy, the two facts to write down are the exact rate and the exact renewal date, in that order.
On refunds, the published terms allow refunds on the trial within thirty days if it was unused, and limit subscription refunds to verified cases of service unavailability, platform errors or billing mistakes. Time remaining after you cancel is explicitly not refundable. That is a stricter policy than many buyers assume from the low entry price, and it makes the cancellation deadline the only lever that reliably controls your total cost.
6 What You Actually Receive
Strip away the framing and a purchase here delivers three things: a score, a report of some depth around it, and continued access to a member area for as long as you keep paying. Judging whether that is worth the money means judging each one separately, because they have very different shelf lives.
The score is a one time deliverable. You get it once, it does not improve with a longer subscription, and a second administration weeks later is contaminated by having seen the format already. That last point is underappreciated: practice effects on reasoning tests are real and can move a retest score upward by several points without any change in underlying ability. So the thing most buyers actually want from the purchase is fully delivered in the first session, while the billing continues indefinitely. The mismatch between a one time want and a recurring charge is the structural tension at the center of this entire product category.
The report and certificate are the visible artifact, and they are genuinely pleasant to receive. Users describe a clean presentation, a breakdown by cognitive area, a percentile framing and a downloadable certificate with a name on it. Presentation quality is a real product virtue and it deserves acknowledgment. It is also, in a measurement product, the attribute most easily improved without improving the measurement at all, which is why a polished report should never be read as evidence about accuracy. Design and validity are independent variables.
The ongoing membership is the part you should scrutinize hardest before deciding, because it is what you are actually buying on a recurring basis. Ask what the member area gives you in week six that you did not have in week one. If the answer is training exercises and puzzles, price them against the many free or one time purchase alternatives, and note that transfer from brain training games to general cognitive ability has been contested in the research literature for over a decade. If the answer is mainly continued access to a result you already downloaded, then the recurring charge is buying you access to your own past, which is a poor trade at any weekly rate.
7 Privacy and What Happens to Your Data
Cognitive test data is unusually sensitive, and this is one area where Cerebrum IQ's published policy is more specific than much of the category. As of August 2026, its privacy policy states that account data collected includes the email address you sign in with, the name supplied by your payment processor, an internal account identifier, the timestamp of your last sign in, and your IP address.
On the test itself, the policy makes a claim worth quoting: "Individual answers are processed in real time and are not stored." What is retained is the final IQ score, the completion timestamp and basic performance metrics. From a privacy standpoint that is a favorable design. Item level response data is the most revealing thing an assessment collects, and a vendor that discards it is holding less about you than one that keeps everything. From a measurement standpoint it cuts the other way: a provider that does not retain item level responses cannot compute internal consistency reliability from live data, cannot run item analysis, and cannot re norm against its own users. Those two consequences are both true at once, and a reader should weigh whichever matters more to them.
The advertising disclosures are where a careful reader should slow down. The policy names a list of advertising and analytics partners that may receive identifiers, email addresses for advertising purposes, usage data, device information and interaction metrics, and it discloses session recording among the third party services in use. None of that is unusual for a direct to consumer web product, and disclosing it is better practice than staying vague. It does mean that signing up connects your email to an advertising graph, so the practical advice is ordinary but effective: use an address you can filter, and read the cookie banner rather than clicking through it.
On rights, the policy recognizes GDPR rights for users in the EU and UK, and CCPA and CPRA rights for California residents, including the ability to request deletion and to opt out of the sale of personal information. Card details are handled by payment processors, with the company stating it receives only a tokenized reference plus the first six and last four digits and the expiration. Note that deletion of your account is a separate action from cancelling your subscription. Cancelling stops the billing; it does not, by itself, erase the record. If you want both, you have to ask for both.
8 What the Result Can and Cannot Be Used For
The vendor has already answered half of this question, which makes the section short and unusually firm. Cerebrum IQ's terms state that its assessments are "not a clinical assessment, they are not a diagnostic tool," that results should not be used "for academic, professional, or medical decisions," and the site footer carries the line that the test "is for entertainment or educational purposes only and is not a substitute for professional evaluation."
Take that at face value, because it is accurate and because it maps onto the underlying reality. A score from any unsupervised online test cannot support a diagnosis of a learning difference or intellectual disability, cannot substitute for the evaluation required for academic accommodations, cannot be submitted for gifted program placement, cannot be used in any legal or forensic context, and is not accepted by high IQ societies, which maintain their own lists of qualifying supervised instruments. None of those exclusions are peculiar to this product. They apply to the whole unsupervised category, ACIS very much included.
What it can legitimately do is give you a rough, entertaining sense of where your reasoning performance sits, and start a line of thinking. That is a real use and not a trivial one. Plenty of people take an online test, get curious, and go read seriously about how ability is structured and what scores mean; if you are at that stage, our pages on the average IQ and how the scale is built and on what counts as a good IQ score are more useful to you than any single number.
The failure mode to avoid is the identity trap: treating a ten minute result as a fixed fact about yourself. Cognitive performance on a given morning depends on sleep, stress, caffeine, screen size, interruptions and familiarity with the item format, and those factors can swing an unsupervised score by a wide margin in either direction. A high score from a short online test is not proof of exceptional ability, and a disappointing one is not proof of anything at all. Treat the number as one noisy reading, and act on patterns across your actual life rather than on a certificate.
9 An Honest Comparison With the Online Test Category
It is easy to make any single online IQ test look bad by holding it against a supervised professional battery. The fairer and more useful comparison is against its actual peers, the dozens of web products competing for the same search traffic. Judged that way, Cerebrum IQ has real strengths and real gaps, and both belong in the same table. That peer group is documented case by case in our reviews of the International IQ Test and IQ Test Academy, which apply the identical criteria.
What the public record supports
Where the public record is thin
Explicit intended use. The terms state plainly that this is an educational entertainment product and not a diagnostic tool, which many competitors never say anywhere.
No published technical documentation. We could not locate a manual describing item development, scaling or score derivation.
Published price schedule. Weekly and monthly rates appear in the terms rather than only at checkout, so a buyer can read them before starting.
No norm sample description. Without a documented reference population, a reported percentile cannot be checked against anything.
Detailed privacy policy. It names collected fields, states that individual answers are not stored, lists advertising partners and recognizes GDPR and CCPA rights.
No reliability or validity figures. No internal consistency, retest stability, standard error, or correlations with established batteries are published.
Fast, polished delivery. Third party accounts consistently describe a short test with a clean report and certificate, which is a genuine product strength.
Billing friction reported by users. Trustpilot and BBB reviewers report unexpected renewals and cancellation difficulty, discussed with attribution below.
Third party signals point in two directions and both deserve reporting. As of August 2026, Trustpilot displayed a TrustScore in the four star range for cerebrumiq.com across a review volume in the tens of thousands, with the company visibly replying to negative reviews and offering refunds. Over the same period, the Better Business Bureau profile for Cerebrum IQ, Inc. showed an F rating, no accreditation and a stated failure to respond to sixty complaints. We have not audited either dataset, and we note that they measure different things: one aggregates volunteered customer sentiment, the other aggregates formal complaints and responsiveness to them.
Across both platforms the recurring theme in negative reports is billing rather than the test. Reviewers describe expecting a one time charge of about a dollar and later finding a recurring subscription, and describe difficulty stopping it. Those are user accounts, not our findings, and they sit alongside the company's own help center statement that the trial price and the selected subscription rate are both presented at sign up with explicit acknowledgment required. We report the tension without resolving it: the terms are published, the renewal is disclosed, and a large number of people nonetheless report being surprised. Whatever the cause, the practical lesson for you is unchanged, and it is in the next section.
10 When Paying for an Online IQ Test Makes Sense
Paying for an online cognitive test is not automatically foolish. It is foolish when the price buys nothing the free versions do not already give you, and reasonable when it buys something specific. Here is how to tell the two apart before you enter a card.
Paying can be worth it when the money buys length, breadth or documentation. A longer battery genuinely measures more reliably than a ten item quiz, and building one costs money that has to come from somewhere. A test that samples several distinct abilities separately gives you a profile rather than a single figure, and profiles are where the actually interesting information lives, since relative strengths across domains say more about how you work than a composite does. And a provider that publishes its methods is spending money on something you can inspect. Any of those three is a defensible thing to pay for.
Paying is not worth it when the money buys presentation. If the difference between the free and paid tiers is a certificate, a prettier chart, a badge, or a longer description of a score you already have, you are paying for graphics. That is a legitimate purchase if you know it is what you are buying and the price is trivial. It becomes a bad purchase the moment it is recurring, because graphics do not accrue value weekly.
And it is never worth it when the outcome matters. If a real decision hangs on the result, an accommodation request, a diagnostic question, an assessment for a child, no online product at any price is the right tool. The correct move is a supervised evaluation with a qualified psychologist using an accepted battery. That costs substantially more and takes hours rather than minutes, and it is the only path that produces a result an institution will accept. Spending twenty dollars online in the hope of avoiding that is the most expensive kind of saving, because you end up paying twice. Our comparison of what separates the better IQ tests goes deeper on the trade offs between the tiers.
11 A Checklist You Can Reuse on Any IQ Test
The most durable thing this page can give you is not a verdict about one product. It is a procedure that takes about five minutes and works on every test you will ever meet, including ours. Run these seven checks before paying anything.
Does it name what it measures, in construct terms? Look for verbal comprehension, fluid reasoning, visual spatial processing, working memory, processing speed and quantitative reasoning, not "logic" and "focus." Folk labels mean the vendor has not told you what the score is made of.
How many items, and across how many domains? Divide one by the other. Fewer than about eight items per reported domain means the domain breakdown is decorative, however confident the chart looks.
Is the norm sample described? Who is the comparison group, how many people, recruited how, and when? A percentile without a named population is a number without a denominator.
Are reliability figures published? Internal consistency and retest stability, plus a standard error of measurement. If the report gives you a single integer with no confidence interval, the vendor is presenting an estimate as a fact.
Is there validity evidence? Correlations with established batteries, factor structure, or outcome data. Testimonials and press mentions are not validity evidence.
What exactly does the charge do? One time or recurring, at what rate, on what date, and cancellable through which route. Find the answer before you pay, not after, and take a screenshot of the checkout screen.
What does the vendor say the result is not for? A provider that states its limits is more trustworthy than one that implies none exist, and that sentence is usually in the terms rather than on the sales page.
Applied to Cerebrum IQ, the checklist gives a mixed reading with a clear shape: strong on the seventh question, adequate on the sixth if you read the terms, and unanswerable from public sources on the first five. That is a fair summary of what a buyer can and cannot verify, and it is why the honest recommendation is conditional rather than absolute. If you want a fast, entertaining score, know you are opening a subscription, and will cancel deliberately, it does what it says. If you want a measurement you can defend, the public documentation does not currently let you check whether you are getting one.
12 Where ACIS Fits, Limitations Included
Since we sell a competing product, it would be evasive to leave it out and dishonest to oversell it, so here is the comparison stated with its weaknesses attached.
ACIS is a longer assessment, twenty subtests sampling six broad CHC domains, and it reports a profile across those domains rather than a single figure. We publish a technical manual describing how the scale and its norms were derived, so that a reader who wants to argue with our methods has the material to do it. The pricing is a one time purchase rather than a recurring membership, which removes the renewal question entirely: there is no cancellation date to diarize, because there is no renewal.
Now the limitations, said out loud. ACIS is an unsupervised online self assessment. It is not a clinical instrument, it is not diagnostic, and it is not accepted for accommodations, placement or any institutional purpose, which are precisely the same exclusions we listed earlier for the whole category. Nobody verifies your identity or your testing conditions, so the same distractions, retakes and format familiarity that add noise to any home administration add noise to ours. Publishing a technical manual means our numbers can be checked; it does not mean our test is a substitute for a psychologist, and we would rather say that here than have you discover it later.
Whether that trade is worth it depends entirely on what you want. If you want a number and a certificate in ten minutes, a longer battery is simply the wrong purchase and you should not buy ours. If you want a domain by domain profile with the reasoning behind the scale written down where you can inspect it, that is what we built, and the fairest thing we can do is let you look at both the report and the manual before deciding.
A web based intelligence quiz sold through a membership. You take it in a browser, and the write up is released once a paid plan is active on your account.
Is Cerebrum IQ a real IQ test?
It produces a figure on the familiar 100 point scale, but the company categorizes its own offering as educational entertainment in its legal terms, which is a narrower claim than a psychometric instrument makes.
What does the trial cost?
Checked in August 2026, the two official documents disagree by one cent: ninety nine cents in the support article, a round dollar in the legal terms. Verify the figure on your own payment screen.
What happens after those seven days?
Billing continues at whichever plan was picked during signup. Day eight is the first full charge, so the calendar entry that protects you is day six.
How much are the plans?
The August 2026 terms listed two weekly options near ten and fifteen dollars, plus monthly options near fifteen and thirty dollars. Currency and regional pricing may shift what your own screen shows.
Why does a weekly plan matter so much?
Fifty two billing events a year turn a small figure into a large annual total, and each individual line on a statement looks too minor to chase. Multiply before agreeing, not afterward.
How do I stop the billing?
Through the account portal the company maintains for that purpose, described in its support pages. Do it ahead of the next scheduled date and keep whatever confirmation you receive.
Can I get money back?
The published policy is narrow: an untouched trial within a thirty day window, or documented technical and billing faults. Remaining days after you stop are excluded.
Does stopping payment erase my information?
No. Ending a plan and requesting removal of your record are two separate actions, and the privacy policy handles them under different headings.
Can I still sign up right now?
When we looked in August 2026, several pages carried a notice that registrations were paused while existing members could still log in. That status may differ whenever you visit.
How long does the quiz take?
Promotional copy points to roughly ten minutes. No official page we found commits to a fixed duration or a countdown, so treat that as an approximation.
How many items are there?
Outside commentary converges on about thirty. The company does not state a figure on the pages we were able to read, so nobody should quote it as official.
Which abilities does it cover?
Advertising language mentions things like recall, quickness and reasoning. Those are everyday words rather than defined constructs, so the underlying coverage stays unclear from outside.
Where does the percentile come from?
Any ranking implies a comparison group. We found no published account of who that group is, how large it is, or how it was assembled.
Is there published proof it works?
We located none, and the company's terms themselves state that effectiveness has not been checked by outside parties. Absent proof is not proof of a defect, only an inability to confirm.
Is the certificate worth anything officially?
It is a decorative file. No academic body, employer or high ability society treats a downloadable graphic from an unsupervised web quiz as a credential.
Could I use the outcome for school support?
No. Accommodation requests require a supervised evaluation by a qualified professional using a recognized battery, and the vendor's own terms exclude academic use.
Will retaking it raise my figure?
Probably, and that is the problem. Familiarity with question styles inflates a second attempt without any change in the ability being estimated.
Are the online complaints about the quiz itself?
Mostly not. Reviewers on Trustpilot and the BBB concentrate on charges and cancellation rather than the questions, which several describe as enjoyable.
Should I trust a review written by a rival?
Only as far as you can check it. Every factual statement here is drawn from documents the company itself publishes, and the links are provided so you can read them without us.
Might these details be outdated?
Yes. Everything reflects what was visible in August 2026. Terms, tiers and availability in this market change often, so the live payment screen always overrules this page.
14 Sources Behind This Page
A review is only as good as the yardstick behind it. These sources document the measurement standards this review applies and the consumer practices it checks for.
American Psychological Association. The Standards for Educational and Psychological Testing, the joint AERA, APA and NCME framework that legitimate tests are built and evaluated against.
Buros Center for Testing. The independent center whose Mental Measurements Yearbook has reviewed commercial tests since 1938. The reference point for claims about test quality.
American Psychological Association. Understanding psychological testing and assessment. What professionally administered testing involves and how it differs from informal quizzes.
Federal Trade Commission (2022). Bringing Dark Patterns to Light. The FTC staff report on design practices that obscure subscriptions and charges, worth checking any paid online test against.
Pearson Clinical Assessment Scientific Council (2023). Standardized Clinical Assessment for Practitioners: A Primer. How standard scores, percentile ranks and the standard error of measurement are meant to be read together.
Pearson (2008). WAIS-IV Score Report sample. What a real report contains: every composite paired with a percentile rank, a 95% confidence interval and a qualitative description, never a bare number.
Crawford, J.R., Garthwaite, P.H. & Slick, D.J. (2009). On percentile norms in neuropsychology. The Clinical Neuropsychologist, 23(7), 1173-1195. Three definitions of a percentile coexist in practice and can return different results for the same score.
Voncken, L., Albers, C.J. & Timmerman, M.E. (2019). Improving confidence intervals for normed test scores. Behavior Research Methods. Open access. Documents the mean 100, SD 15 metric and the uncertainty that norming from samples adds to any score.
Pearson (2024). WAIS-5, Wechsler Adult Intelligence Scale, Fifth Edition. The current adult battery, covering ages 16:0 to 90:11 across five cognitive domains.
Take the assessment
You get a profile, not a number
ACIS measures six CHC domains across 20 subtests and reports each one with its own normed score and confidence interval, so you can see where you are strong and where you are not.
