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IXL vs Brilliant: catalog facts
IXL	Brilliant
Paid Requires a paid membership.	Freemium Free to get started, with paid access for the full program.
Web	Android, iOS, Web
Large K-12 skill library across several subjects Diagnostic and analytics for tracking progress	Visual, interactive lessons instead of video lectures AI tutor that guides with hints rather than giving answers
Paid membership required Focused on K-12 curricula	Full access requires a paid plan Focused on math and coding topics
Web application	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.