Disappearing classes Although the classes are interesting and the math is (sometimes) well explained, there are also a lot of issues with Brilliant: *Classes disappearing in the middle of doing it. Algebra 2 for example *Classes skimming through essential piece of information, e.g. Introduction to linear Algebra. I'd really recommend a mix of other solutions if you want to further your understanding of mathematics. Khan Academy & 3Brown1Blue (and many other free resources) provide better explanation and have the same level of interactivity.

Just brilliant The app is amazing. The courses are well made and i love the streak notification that keeps me engaged. Well worth the money and a good app for anyone, either you need to fresh up your knowledge or for learnig new skills. Customer service is amazing as well , quick replies and so focused on helping and taking care of their customers. Thats what a professional business looks like. I have absolutely nothing negative to say about Brilliant. I warmly recommend it.

Can't cancel 7-day trial (solved) Tried to cancel the trial before deadline, but the cancel subscription button won't work (still doesn't work now). No way to cancel, I got billed €124,95. Immediately requested for a refund and haven't used any courses since being charged, will update if I receive it. Be careful with this company. UPDATE: Thanks you Steph from customer service, who has promptly issued a full refund after an email. It may be better to directly email the support team rather than to submit a refund request through the app. The app itself is good to awaken a beginner's interest, but offers not much after that. If you want to cancel a trial, make sure to do so through email to be safe.

Customer Support Just want to say that in these days of AI/Automation, it was extremely pleasant to get real, prompt and excellent customer support. Maria responded right away and took care of the matter right away! Awesome!

Refund request Excellent response from Customer Service to my refund request which was processed in a quick and friendly way.