Compare software

Khan Academy vs IXL: catalog facts
Khan Academy	IXL
Free Free to use, funded by donations to the nonprofit.	Paid Requires a paid membership.
Android, Web	Web
Free lessons and practice across many subjects Tools for teachers to assign work and track progress	Large K-12 skill library across several subjects Diagnostic and analytics for tracking progress
Signing up is needed to track progress Follows a mostly school-style curriculum	Paid membership required Focused on K-12 curricula
Downloadable app, Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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