Cerebrum IQ changed ownership on November 1, 2024. Reviews published before this date may not be indicative of the current business or business owners.
Cerebrum IQ
business logo of Cerebrum IQ

Cerebrum IQReviews 206

3.1

On Sitejabber, businesses may not offer incentives or pay to remove reviews. Learn more about our Review Guidelines.

How would you rate Cerebrum IQ?
grey star
grey star
grey star
grey star
grey star

Cerebrum IQ Reviews Summary

Cerebrum IQ has a rating of 3.1 stars from 206 reviews, indicating that most customers are generally satisfied with their purchases. Reviewers satisfied with Cerebrum IQ most frequently mention brain training, logical reasoning and progress tracking.

This company does not typically respond to reviews

We monitor reviews for authenticity

GB
2 reviews
0 helpful votes
Follow Alyson L.
Unfollow Alyson L.
Share Review
Report Review

Total Scam Artists
November 5, 2025

This company are nothing but a bunch of thieving bastards. Do not use! They automatically sign you up for the premium service without your approval and then refuse to refund you. Have filed a fraud claim against them with my bank and financial ombudsman

Date of experience: November 5, 2025
Turkiye
1 review
1 helpful vote
Follow Beste Y.
Unfollow Beste Y.
Share Review
Report Review

I would like to warn others about my negative experience with Cerebrum IQ. On February 28, I signed up to take an online IQ test for what was clearly advertised as a one-time payment of 1 EUR. After completing the test, I did not receive clear confirmation or any warning that I would be charged a recurring fee. However, without my consent, they began charging my credit card 19.90 EUR weekly — a total of almost 7 months of unauthorized payments. That's over 500 EUR taken for a service I never used again and never agreed to continue. I attempted to cancel in May, but they never properly responded or guided me on how to stop the charges. Only recently did they send a chatbot link for cancellation — after months of silent withdrawals. When I requested a full refund, they only refunded one single payment and ignored my request for the rest. What's worse, their own policy mentions $14 weekly, yet I was charged 19.90 EUR — a much higher amount — without explanation. This experience feels like intentional deception and borders on fraud. I've contacted my bank for a chargeback and will report this to consumer protection authorities. I strongly advise others to stay away from Cerebrum IQ.

Date of experience: October 5, 2025
New York
1 review
1 helpful vote
Follow Lynn M.
Unfollow Lynn M.
Share Review
Report Review

CEREBRUM IQ will charge you for monthly fees even when you DECLINE the subscription! DO NOT Give them your card information. DO NOT PAY the. 99 for the test. DO NOT ENGAGE with this SCAM ARTIST COMPANY! Your card will be charged over and over and they will never respond via email or phone or website. They attempted to charge me $19.99 7 times. I had to shut my card down!

Date of experience: November 15, 2024
GB
1 review
1 helpful vote
Follow steve S.
Unfollow steve S.
Share Review
Report Review

Unethical charlatans who con money from children! (and adults probably). My 14yr old son recently noticed several charges on his bank account to Cerebrum IQ. It appears he completed an IQ test via a facebook post (fed to him) and in doing so unwittingly signed up to a 'free trial', not realising he was supposed to cancel within a certain timeframe. He had no email confirmation or any account information with which to alert him of this or to remind that the trial was over/ending. Since contacting the company the 'customer service' has been nothing short of appalling! I explained the error, they have consistently avoided answering my query, every time deflecting with automated messages designed keep me hanging on to the assumption they are "working on it". It would appear unethical profiteering is more important to Cerebrum IQ than doing the right thing. The amount of £25.98 (which has taken several months to save) is clearly far more important to them than doing the right thing in returning it to a minor they have essentially hoodwinked. I am also somewhat troubled by the 5star ratings for Cerebrum on all platforms as they all have the whiff of AI about them, read the 1star ratings, they all hi-light the same complaints.

Date of experience: June 30, 2025
California
1 review
3 helpful votes
Follow T B.
Unfollow T B.
Share Review
Report Review

Beware of the MAJOR SCAM
February 22, 2025

.99c test turned out to cost $50 after they started charging me $14.99 every WEEK. Nothing in the sign up said anything about this. Luckily after reading other complaints I caught it in time. If you are interested in starting a class action lawsuit lets get it going!

Date of experience: January 19, 2025
India
1 review
0 helpful votes
Follow Mukesh K.
Unfollow Mukesh K.
Share Review
Report Review

Everyone can do it 😁
February 16, 2025

Not sure about the time and situation ye...
Time doesn't wait for more 💯

Date of experience: February 6, 2025
Philippines
1 review
0 helpful votes
Follow helen N.
Unfollow helen N.
Share Review
Report Review

It was really challenging
February 16, 2025

I feel challenged but enjoyed the experience.I need to think and weigh things before giving my answer.

Date of experience: February 6, 2025
Texas
1 review
1 helpful vote
Follow Rebecca H.
Unfollow Rebecca H.
Share Review
Report Review

So, I paid.99 cents to get my IQ results...
Didn't recieve an email til hours later of the result, and then about a week later, I get a 14.99 charge for a subscription that I never clicked on anything to agree to.

Date of experience: February 3, 2025
Bangladesh
1 review
0 helpful votes
Follow Sk A.
Unfollow Sk A.
Share Review
Report Review

Sk Ashik
February 15, 2025

I cannot know but I know that I love Facebook. I need my recent engagement and earn money

Date of experience: February 5, 2025
Philippines
1 review
0 helpful votes
Follow Amiel G.
Unfollow Amiel G.
Share Review
Report Review

Best IQ Test
February 15, 2025

Great experience and nice question. It's good to test our IQ sometimes.

Date of experience: February 5, 2025
Philippines
1 review
0 helpful votes
Follow Nestor D.
Unfollow Nestor D.
Share Review
Report Review

Amazing
February 14, 2025

I enjoys problem-solving, taking an IQ test can feel like an exciting puzzle, where each question offers a new challenge. A smooth and rewarding experience comes from staying calm, thinking critically, and managing time effectively.

After completing the test, and hsving positive experience includes feeling a sense of accomplishment, regardless of the score, because it provides valuable insights into strengths and areas for my improvement.

Date of experience: February 4, 2025
India
1 review
0 helpful votes
Follow Raj B.
Unfollow Raj B.
Share Review
Report Review

Great fun
February 14, 2025

Everything would help us if we do with fun and seriously to get knowledge

Date of experience: February 4, 2025
India
1 review
0 helpful votes
Follow MOHAMED AZARUDEEN S.
Unfollow MOHAMED AZARUDEEN S.
Share Review
Report Review

Great
February 14, 2025

Good questions for testing iq great survey I am feel great participate

Date of experience: February 4, 2025
Bangladesh
1 review
0 helpful votes
Follow Md Kamrul I.
Unfollow Md Kamrul I.
Share Review
Report Review

Very good
February 14, 2025

I am very happy because I have scored better than my qualification. Thank you very much from my side.

Date of experience: February 4, 2025
India
1 review
0 helpful votes
Follow Gogan S.
Unfollow Gogan S.
Share Review
Report Review

Further no Comments, because I have no previous experience, regarding such business. Thanks let me better leave

Date of experience: February 4, 2025
Bangladesh
1 review
0 helpful votes
Follow talukder N.
Unfollow talukder N.
Share Review
Report Review

M1
February 14, 2025

Good experience with a new thing. I never do like this before. So I just enjoy all of the thing. And I will again do this.

Date of experience: February 4, 2025
India
1 review
0 helpful votes
Follow Nethavathi V.
Unfollow Nethavathi V.
Share Review
Report Review

Best of yourself
February 14, 2025

It's good to know about myself. It will help to improve my iq Power so I choose to use this website

Date of experience: February 4, 2025
Nigeria
1 review
0 helpful votes
Follow Godfrey C.
Unfollow Godfrey C.
Share Review
Report Review

Personal development
February 14, 2025

It didn't take as much time as envisaged. The questions are similar with a little tweaking. Overall it was an enjoyable experience for me

Date of experience: February 4, 2025
Nigeria
1 review
0 helpful votes
Follow Abdulgaffar U.
Unfollow Abdulgaffar U.
Share Review
Report Review

Nigerian citizen
February 13, 2025

Never turn back to your way of success, anything in this life is matter of trying and hardworking,so,Keep pushing until the time u fulfill your dream.

Date of experience: February 3, 2025
Bangladesh
1 review
0 helpful votes
Follow Ashikur R.
Unfollow Ashikur R.
Share Review
Report Review

Nice
February 13, 2025

Valo lagoche khelte, vai atO kichu lekha jai naki
Olpote khushi thako

Date of experience: February 3, 2025

From the business

Cerebrum is an IQ assessment and brain training product designed to evaluate customers' reaction times, memory, logical reasoning, concentration, and processing speed. We also offer a variety of brain training games and challenges aimed at helping individuals improve their IQ scores.