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Cerebrum Reviews 

45,723
TrustScore 4.5 out of 5

4.3

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Rated 5 out of 5 stars

I tried Cerebrum’s assessment from the U.S., and it was both fun and informative. The 30 questions were challenging but engaging, and the results gave me real insight into my strengths. The personali... See more

Company replied

Rated 4 out of 5 stars

Update - after posting this review, Cerebrum got in touch with me and located the account that was charged. They refunded all of the unauthorized charges with an apology. I have no idea how I got... See more

Company replied

Rated 3 out of 5 stars

This company use deceptive billing practices. I paid €0.99 for what I understood to be a one-time test. Shortly after, €14.99 started being deducted from my account every week!!! I did not author... See more

Company replied

Rated 5 out of 5 stars

I have decided to leave my initial review up, as I think it important for others to see my initial issue, their response on here, and then my final experience. So, after messaging Cerebrum, I was mes... See more

Company replied

Company details

  1. Educational Testing Service

Written by the company

Discover your intelligence score through Cerebrum's comprehensive assessment. Our 30-question test provides detailed insights into your cognitive abilities, complete with a personalized certificate. Join over 500,000 users who have uncovered their intellectual potential with our engaging test.


Contact info

Uncover Your Intelligence Score Now!

Complete the 25-question test and receive your detailed results.

4.3

Excellent

TrustScore 4.5 out of 5

46K reviews

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Replied to 100% of negative reviews

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4.3

All reviews

(45,723)

13,237 reviews in the last 12 months

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Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 1 out of 5 stars

Shyster

I received a charge for $29.99 on my bank acct for a subscription that I did not approve. I had approved a purchase of $1.00 to see my test results, not expecting to be charged $29.99 and subscribed to a website that I don't need. Needless to say, I'll be asking for a full refund and cancelling the unwanted subscription.

27 January 2026
Unprompted review
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Reply from Cerebrum

Dear Tommy Ray, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number TOMMYRAY732301 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

I did not realize when I signed up…

I did not realize when I signed up initially (so I’d be able to take a test which was only $1.00) that Cerebrum automatically debited my bank account at a cost of $29.99 per month. Plus, they charged me twice in one month. They debited my bank on 10/29/25, 11/20/25, 11/26/25, 12/18/25 and 01/15/26.
Please help me get these charges reversed. My I’ve never even been on the site since 10/22/25. Please help. That’s $150.00. I’ve been in the hospital and not aware of these debits. Please.

22 October 2025
Unprompted review
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Reply from Cerebrum

Dear Dianne, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number DIANNE475883 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

Senior Abuse and Fraud

As an 82 year old I was tempted to try this but found out I was a real loser. I found out that it was a subscription without ongoing value or use. My 86 year old spouse is in a nursing home & and we have no funds to squander on limited pensions. Amounts charged were 2x $.70 and 2X $44.99.This was on Feb.3/26. I have contacted Bank Fraud at local bank and also will publish this scam in the newspaper to warn of this. I have had to do this before so please refund charges or further consequences will follow. Kathleen Kimmig

3 February 2026
Unprompted review
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Reply from Cerebrum

Dear kat Kiming, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number KATKIMING681378 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

Deceptive billing and zero support

I was charged $29.99 on Feb 5, 2026, without clear consent. I contacted their support with my payment details and proof of their own confirmation email, but they keep denying my account exists. This is a common tactic to avoid refunds. I have already initiated a bank chargeback. Order reference available upon merchant request.

5 February 2026
Unprompted review
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Reply from Cerebrum

Dear Daryl H, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number DARYLH719233 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

SCAM SCAM SCAM!!

SCAM SCAM SCAM!!! They keep charging me even after I tried to cancel a subscription I didn’t know I signed up. It’s been over a year and they charge me $19.99 3 and sometimes four times a month. I’ve tried emailing to cancel and no luck. This is ridiculous and a scam.

5 February 2026
Unprompted review
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Reply from Cerebrum

Dear Katherine Martinez, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number KATHERINEMARTINEZ604848 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

I took an online IQ test through My IQ

I took an online IQ test through My IQ. Cerebrum is the parent company. I was charged $1 for the test but then I was charged $24.99 for a monthly subscription. I did not authorize this. Sent an email to MY IQ regarding this. Was told I would be refunded and subscription would be cancelled. However a charge was taken out for the next month so nothing has changed. I have been in contact with my bank and waiting to hear back. DO NOT trust this company. Terrible to run a scam like this. Hopefully my bank can handle this dispute.

19 December 2025
Unprompted review
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Reply from Cerebrum

Dear Diane, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number DIANE170799 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

Still haven’t received any answer about…

Still haven’t received any answer about the refund im asking.
It will go to law suit and make this spam company closed down, it’s time!

3 February 2026
Unprompted review
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Reply from Cerebrum

Dear elise gettliffe, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number ELISEGETTLIFFE383702 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

Scam - taking advantage of my 90 year old dad

Do not use this site. They charge you a £1 for your results and then lock you into paying £14.99 every 2 weeks or £29.99 a month. Their UI is very confusing particularly for my 90 year old dad who used it to test out his IQ. Trying to cancel it for him is proving very difficult - will have to report as a scam to the bank I imagine to get it cancelled. So many bot reviews on here as well - CerebrumIQ is the parent company which does the same thing.

EDIT: What reference are you asking for in your request? And why do you need my phone number? You're already clearly a scam why would I give you further details?

2 February 2026
Unprompted review
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Reply from Cerebrum

Dear Bill McIntyre, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number BILLMCINTYRE535141 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

UNAUTHORIZED CHARGES

This company will make unauthorized withdrawals from your account if you purchase the one time IQ test. I did it for fun and now they are billing me $24.99 every month. Watch out. I’m looking into possible legal actions.

1 February 2026
Unprompted review
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Reply from Cerebrum

Dear William Matheny, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number WILLIAMMATHENY189914 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

The higher your IQ, the less likely you'll get a refund

*** update 05.02***

on 22.01 I received a public response to my claim, and a refund was authorized, and approved – after staling for over 10 days, now they deny the refund.

This is a scam-adjacent/dark pattern practicev: no sign up to, or subscription information, just paid 2 x 0.47 CHF for a test. 2 other monthly payments from my bank account where thereafter made – I only noticed after seeing these unknown charges. The contact points and customer care are only automated responses, by "David", a bot, which much likely sounds like 2001's HAL, by stating that refunding my would be unfair to other users, but every complain is the same. Stay away, or learn the hard way!

22 December 2025
Unprompted review
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Reply from Cerebrum

Dear Monsieur Ennui, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number MONSIEURENNUI234944 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

I did not receive the promised IQ test

I did not receive the promised IQ test. I am complaining about the
amount of 1 EUR. Furthermore, an unauthorized payment of
29.99 EUR was made. I did not register anywhere, I wanted only 1test for 1EUR but I don't even have that. I request a refund.

13 January 2026
Unprompted review
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Reply from Cerebrum

Dear Iveta Faltová, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number IVETAFALTOV351124 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

This is a thieving scam

This is a thieving scam. I signed up to nothing and just paid 2 x 50p's for tests. These rouges then took 3 monthly payments from my bank account without any authorisation. The contact points and customer care are only automated responses. You get nowhere. No uk address or phone number. Beware.

30 January 2026
Unprompted review
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Reply from Cerebrum

Dear Paul Mccreesh, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number PAULMCCREESH814018 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

Got ripped off

Got ripped off. Was suppose to charge $2 and charged me 25. I was under the impression that it was only $2 or I would’ve done it. This was for the results for an iq test. I am in a nursing home and on Medicaid. I used PayPal clc8191@outlook com.

Thank you

6 January 2026
Unprompted review
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Reply from Cerebrum

Dear Cher Christian, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number CHERCHRISTIAN768569 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

Disgusting company scam you out of your…

Disgusting company scam you out of your money
Also disgusted that trust pilot gives them 4srars that should be on minis 5stares

The refund they have agreed is £1 not the £29.99 they have taking
Just a ploy to say to trust pilot they have refunded but they have not

30 January 2026
Unprompted review
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Reply from Cerebrum

Dear LACEY SEWELL, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number LACEYSEWELL230350 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

URGENT: FRAUDULENT RECURRING CHARGES - REFUND APPROVED BUT NOT PAID

This is a formal Cease and Desist notice to Cerebrum IQ / MindOrbit.
You have charged my account twice for ₦26,308.47 and ₦26,364.24 without authorization. You previously acknowledged the refund was approved under reference AHMADAYINDE603309, yet your support team (Dairo and James) continues to stall.
Wema Bank Purple Connect (Ticket #6212582) is now investigating these as unauthorized Card-Not-Present (CNP) transactions. I am demanding the immediate reversal of the full ₦52,672.71 to the original payment method.
Stop the stalling tactics and process the refund today to avoid further legal and banking escalations

26 January 2026
Unprompted review
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Reply from Cerebrum

Dear Ahmad Ayinde, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number AHMADAYINDE931241 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

Ongoing Fraud & Deception



Cerebrum contacted me in 2025 and indicated they would correct the issue (that started in February 2025) and provide a refund. The charges did stop however, unbeknownst to me this fraud didn’t stop there. The charges only stopped temporarily. Based on information from the Bank, they changed their merchant information and began charging fraudulently again so the bank would not identify them and their fraudulent charges could resume. $387.99 charged as of today. I am contacting the Attorney Generals Office with my documentation and screen recording (captured months ago) of the blatantly deceptive and fraudulent user interface the company claimed wasn’t intentional. This is the most egregious and unethical web based scam I have ever personally dealt with. I can only imagine the sheer level of fraud this company is responsible for given the circumstances and number of reports with agencies like the Better Business Bureau.

My prior review.
Reference trustpilot review ID# 6826bf8c24d746559fb0af53

Cerebrum provided case ID: CONSUMER100596

29 January 2026
Unprompted review
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Reply from Cerebrum

Dear J Deal, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number JDEAL841019 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

I have requested a refund and…

I have requested a refund and cancellation of my subscription for two months and I continually am charged. I have asked for a refund and no response.

26 January 2026
Unprompted review
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Reply from Cerebrum

Dear Deb, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number DEB558346 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

Cerebrum IQ is a scam

Cerebrum IQ is a scam. I paid for a one time 0.99 reading and have been signed up to a subscription I didn’t know I was signing up for. I have since been charged £20 from my bank account every two weeks for the last month. Contacting their customer helpline to ask for a refund just resulted in a refusal to refund and very rude customer service. Do not use.

23 December 2025
Unprompted review
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Reply from Cerebrum

Dear Bethan Hamblett, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number BETHANHAMBLETT970175 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 5 out of 5 stars

Great end result

I have decided to change my original review as I was contacted by the company shortly after my review went live - a full refund was very promptly received which is fantastic customer service. Thank you Cerebrum!

27 January 2026
Unprompted review
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Reply from Cerebrum

Dear Michael, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number MICHAEL929927 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

Rated 1 out of 5 stars

WARNING SCAMMERS ..DO NOT USE THIS…

WARNING SCAMMERS ..DO NOT USE THIS SERVICE. WHEN YOU TRY TO GET YOUR MONEY BACK THEY JUST KEEP DENYING YOU HAVE AN ACCOUNT OR SUBSCRIPTION...EVEN WHEN YOU SEND THEM PROOF...IF YOU SIGN UP WITH PAYPAL AND SEND THEM PROOF AND A REFUND REQUEST THEY DENY YOU HAVE AN ACCOUNT . THEY TOOK £175.94 TOTAL FROM MY ACCOUNT AND REFUSE TO REFUND ME BACK TO MY CARD OR PAYPAL
DO NOT , DO NOT, DO NOT SIGN UP FRAUDULENT SCAMMERS

30 August 2025
Unprompted review
Cerebrum logo

Reply from Cerebrum

Dear customer, We’ve sent a request via TrustPilot to identify you in our system. Once you provide your details, we’ll promptly process your refund within a few hours, as it has already been approved. Here's your reference number CUSTOMER672754 as it will allow us to quickly identify your account and ensure this is handled promptly.

Thank you! Cerebrum IQ Team

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