Cerebrum (cerebrumiq.com) has a 1.7 out of 5 rating on OK.one, based on 200 user reviews collected here. It is listed under Education & Training and its reputation is poor. 79% of reviews are 1 star, a relatively high share; The business has replied to 100% of negative reviews. Last updated 2026-08-10.
What people say
A
Andrew Sellars · 1 review · Experienced 2025-08-06 ·
★★★★★
Disgusting scamming business
Disgusting scamming business. Completed an IQ test and at the end it requested £1 so I scrolled down and hit the PayPal link however that PayPal link is actually for a £30 a month subscription. Paid 4+ months before managing to cancel the subscription. Theres even a fake timer (gets to 0 and resets to 2 minutes) on the final page to try and rush you through into making the same mistake I did. Disgusting company I'll be having nothing to do with ever again
Reply from Cerebrum2026-01-15
Dear Andrew Sellars, 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 ANDREWSELLARS189352 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
Absolute SCAM, they advertise a £0.99 test and then proceed to take £29.99 every month. All without making an account, all they want is your ban details
Reply from Cerebrum2026-01-15
Dear Mitchel Tommins, 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 MITCHELTOMMINS489126 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
I did a quick IQ test in June and thought no more about it, until I checked my credit card statements months later (I was traveling) amd saw that they had charged me 14.99 Usd EVERY WEEK for 6 months !
Never was it mentioned in the beginning that they would continue to charge me weekly
And when I asked for a refund, the answer was "Our fees are non-refundable"!
Its pretty clear this is how they earn revenue.
Reply from Cerebrum2026-01-13
Dear Praveen Lingamneni, 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 PRAVEENLINGAMNENI603998 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
This is 100% a scam. I paid the .99 and did NOT sign up for anything further they were trying to sell, and today I got a charge for $24.99 that was ACH'd from my bank account. Not from PayPal, not from my card! Do NOT engage with this company in any way.
Thank you to the person who suggested I try this avenue for getting this fixed.
Cerebrum IQ did reach out and refunded my money. I really appreciate it.
Reply from Cerebrum2026-01-12
Dear Shelli Kozachenko, 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 SHELLIKOZACHENKO192742 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
J
Joseph Nastasi · 1 review · Experienced 2026-01-10 ·
★★★★★
SCAM !!Do not ever use one of their My IQ…
Do not ever use one of their my IQ test is a complete scam to lock you into a monthly subscription. Then there's no way to get in touch with them. Thank God, I started with the alerts on my bank account for reoccurring payments. I found posts about this for over a year so clearly they know what's going on and let it continue to go on.
Reply from Cerebrum2026-01-12
Dear Joseph Nastasi, 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 JOSEPHNASTASI696701 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
FRAUD AND SCAM. I took a simple IQ test for a small fee
I took a simple IQ test for a small fee of $1. Moments ago, you unauthorizedly charged my card $29.99 for a subscription I never agreed to.
I have already tried to cancel the subscription in your portal and keeps saying no account found. I am demanding an immediate refund of the $29.99
If this is not refunded immediately, I will be reporting this as fraud to my bank and submitting a formal chargeback.
Reply from Cerebrum2026-01-11
Dear Veronica Parada, 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 VERONICAPARADA658409 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
Dear darimar, Thank you for your wonderful review of CerebrumIQ! Your feedback means a lot to us. Best regards, CerebrumIQ
S
Samuel · 1 review · Experienced 2026-01-10 ·
★★★★★
Scam practices
Scam practices, I canceled my trial on Jan 8th and I have a confirmation email, yet they are still trying to charge my bank account $29.99 today. I am filing a dispute with my bank.
Reply from Cerebrum2026-01-10
Dear Samuel, 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 SAMUEL490714 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
S
Susan · 1 review · Verified · Experienced 2026-01-09 ·
★★★★★
Bien
Bien , super recomendable
Reply from Cerebrum2026-01-09
Dear Susan, Thank you for your wonderful review of CerebrumIQ! Your feedback means a lot to us. Best regards, CerebrumIQ
M
Matt Bates · 1 review · Experienced 2026-01-08 ·
★★★★★
Absolute scam
Absolute scam! You end up getting tricked into monthly payments.
Reply from Cerebrum2026-01-08
Dear Matt Bates, 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 MATTBATES302561 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
C
Chris Baldwin · 3 reviews · Experienced 2026-01-07 ·
★★★★★
SCAM! Don't send this company any money
Tricked into signing up for a subscription for MYIQ. Evidently my IQ is not as good as I thought it was. They make it pretty much impossible to unsubscribe as well.
This is a scam, they promise a refund but don't do anything.
Do not sign up to this fraudulent, scammy company
Reply from Cerebrum2026-01-08
Dear Chris Baldwin, 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 CHRISBALDWIN463608 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
s
susan cerise · 1 review · Experienced 2026-01-08 ·
★★★★★
SCAM COMPANY
Would rate 0 if I could.
TOTAL SCAM COMPANY!!
Do NOT sign up with this company and DO NOT send them any money…even just $1…because they will continue to charge you monthly and it’s impossible to cancel.
Why are these types of lowlife companies allowed to continue their deceptive practices??
Reply from Cerebrum2026-01-08
Dear susan cerise, 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 SUSANCERISE170037 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
l am learning more and looking forward to learning more about and keep informed from experiences you share with me.
Reply from Cerebrum2026-01-08
Dear Tugumisirize Naboth, Thank you for your wonderful review of CerebrumIQ! Your feedback means a lot to us. Best regards, CerebrumIQ
D
Deborah P. · 6 reviews · Experienced 2026-01-02 ·
★★★★★
I took the test you advertised on FB
I took the test you advertised on FB. Afterwards, I was told to see my results I had to send you $1. I did, via PayPal. Then I was charged $24.99, for what I do not know. I had a long correspondence with you about this fraudulent charge, and I guess I was writing to a particularly stupid bot who asked for my name over and over. I am terrified that you will keep charging me. Refund the money you swindled from me, and do not ever post another charge.
Reply from Cerebrum2026-01-07
Dear Deborah P., 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 DEBORAHP737187 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
E
Eric · 4 reviews · Experienced 2026-01-07 ·
★★★★★
SCAM I.Q. TEST
I dont see how anyone is giving CerebrumIQ any kind of review past one star! If I could give 0, I would! This company is deceptive! I took the same little IQ test that a lot of others got scammed with! Completed the test and at the end, of course there was a charge of $1. The test was a decent little test and I said ok, it was worth $1 and I paid it. Now I keep keep getting recurring monthly charges on my credit card for $30 for a subscription that I NEVER was made aware of nor ever agreed to!! I canceled my card once for a fraud charge from them and the same charge showed up again on the new card! I tried to get into CerebrumIQ's website and I put my email in and it says they have no information with that email account! AVOID THIS SCAMMING COMPANY AT ALL COSTS!
Reply from Cerebrum2026-01-07
Dear Eric, 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 ERIC166544 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
H
Heather · 1 review · Experienced 2026-01-06 ·
★★★★★
CerebrumIQ blocked me when I requested a refund, and cancellation.
I paid $1 for an IQ test (I was bored). They charged me via PayPal $14.99 bi-weekly. When I learned of the multiple deductions, I contacted them via PayPal, requested a refund, and requested them to cancel my account. I got zero response back. I went to PayPal to make a second request, but couldn’t. They blocked me. They literally blocked me. What kind of company does that!? A CON-pany.
Reply from Cerebrum2026-01-06
Dear Heather, 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 HEATHER197648 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
Dear Mariana Lopez, Thank you for your wonderful review of CerebrumIQ! Your feedback means a lot to us. Best regards, CerebrumIQ
J
JC · 1 review · Experienced 2025-12-31 ·
★★★★★
THIS IS A SUBSCRIPTION SCAM
THIS IS A SUBSCRIPTION SCAM
I (stupidly) paid this company for my IQ results (I know the irony!) months ago and have just had a subscription taken from my credit card today. No emails to advise this was coming out my account. I didn't sign up for this using an email and therefore it is impossible to easily contact them to cancel. I have flagged this with my credit card provider and have taken this further directly with Cerebrum/MYIQ to have the money repaid. If they mess me about I will submit a charge back report withe the credit card company. Cerebrum is connected to MYIQ
UPDATE 06/01/25 I separately emailed them direct at their help email address @myiq.com yesterday about this and the replies are just a loop asking for details and then replying saying they can't trace my account!
I have provided the details again today via Trustpilot so let's see if I can now be found and repaid!
Update 11 Jan: money has been repaid into my account. I suspect raising the charge back dispute with my credit card prompted this as no a peep from MYIQ/Cerebrum!
Reply from Cerebrum2026-01-05
Dear JC, 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 JC870019 as it will allow us to quickly identify your account and ensure this is handled promptly.
Thank you! Cerebrum IQ Team
