Brilliant.org is described as «also known as Brilliant, is a website and associated community that features problems and courses in mathematics, physics, quantitative finance, and computer science» and is a online education service in the education & reference category. There are more than 25 alternatives to Brilliant.org for a variety of platforms, including Online / Web-based, Android, iPhone, iPad and Chrome OS. The best alternative is Khan Academy, which is free. Other great apps like Brilliant.org are LinkedIn Learning, Wikiversity, TED-Ed and SkillShare.Brilliant.org alternatives are mainly Online Education Services but may also be Code Learning Services or Language Learning Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Brilliant.org.