Best for free foundational learning
Try Khan AcademyKhan Academy is fully free with no ads. The math curriculum covers K-12 through college calculus and statistics; science covers physics, chemistry, biology; CS covers programming basics. For Brilliant subscribers whose actual usage is foundational practice (algebra, intro physics, intro chemistry) rather than the more advanced Brilliant content, Khan Academy delivers that at zero cost. The Khanmigo AI tutor (2024) adds conversational learning support that Brilliant does not have.
Strengths
- +Fully free with no ads
- +Khanmigo AI tutor included
- +Strong K-12 and college-foundation depth
- +Nonprofit; no upsell pressure
Trade-offs
- −Less interactive than Brilliant on some topics
- −Smaller advanced-topic depth
- −Less polished UX than Brilliant
- Price
- Free
- AI tutor
- Khanmigo included
- Catalog
- K-12 + college foundations
- Founded
- 2008 (nonprofit)
Migration steps
- Create a free Khan Academy account.
- Pick the same subjects you study on Brilliant (math, science, CS).
- Use daily for 2-3 weeks to validate the format.
- Cancel Brilliant if Khan Academy covers your foundational learning.
Not for: Skip Khan Academy if you specifically value Brilliant's interactive problem format on advanced topics; Khan is broader but less hands-on for advanced topics.