Perfect app and great support team This is indeed great app and great people who support it. I think it is hard these smartphone days and distractions all over to focus and study, although it is so interesting stuff to learn. I wish I had the time and learning skills to use it properly. Last thing to note the subscription model, where you automatically paying w/o noticing should be changed. The company must try to find a way to inform customers before auto renewl period

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.

Excellent learning tool Content is designed simply to increase readability, and attached to examples that help solidify the principles. Very organized and navigating courses and content is smooth. Fair customer service that strives to evaluate needs on an individual level.

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!

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.