Interactive STEM learning platform using puzzle-based problem solving
Advanced STEM learners, competition prep, self-motivated students with 15+ min daily
Free virtual classroom with video lessons, practice problems, and comprehensive K-12 to college curriculum.
Budget-conscious learners, K-12 students, teachers, districts, self-paced learners
Brilliant offers interactive, puzzle-based STEM learning with a premium subscription model ($12.99/month), while Khan Academy provides comprehensive, free educational content across multiple subjects with optional paid features. Brilliant excels in engaging problem-solving, whereas Khan Academy focuses on accessibility and breadth of curriculum.
Khan Academy is the better choice for students and teachers seeking comprehensive, free, accessible education across multiple disciplines with strong institutional support. Brilliant is ideal for STEM-focused learners who thrive with interactive problem-solving and are willing to pay for premium engagement and conceptual depth.
Choose Brilliant if
Advanced STEM learners, competition prep, self-motivated students with 15+ min daily
| Metric | Brilliant | Khan Academy | Diff |
|---|---|---|---|
| Free Core Content(percent) | Limited free access, premium required | 100% of core lessons free | -80% |
| Subject Coverage Breadth(subjects) | Math, physics, computer science, scientific thinking | All K-12 subjects plus standardized test prep | -67% |
| Interactivity Score(score/10) | Interactive puzzles and real-time feedback |
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Choose Khan Academy if
Budget-conscious learners, K-12 students, teachers, districts, self-paced learners
| Video + practice exercises |
| +50% |
| Premium Subscription Cost(USD/year) | Required for full access | Optional premium features | +114% |
| Advanced Learner Engagement(score/10) | Advanced problem-solving focus | College-prep and AP levels available | +13% |
| Mobile App Quality(rating/5) | Web-first, limited mobile optimization | Full-featured iOS and Android apps | -16% |
| Illustrative Math Curriculum Integration(grade levels) | No formal IM alignment | Grades 6-8 and Algebra 1 updated by summer 2026 | -100% |
| Video Lesson Availability(count) | Video content minimal, puzzle-focused | Thousands of instructional videos | -98% |
| Standardized Test Prep Coverage(exams) | Minimal exam-focused content | SAT, ACT, AP, state assessments | -96% |
| Gamification Level(score/10) | Advanced gamification with challenge levels | Basic progress tracking and badges | +125% |
| Accessibility for Beginners(score/10) | Better for intermediate+ learners | Excellent scaffolding from basics | -33% |
| Annual Cost(USD) | $99.99 | Free | — |
| Subject Categories(count) | 4 (Math, Physics, CS, Science) | 5+ (Math, Science, ELA, History, Social Studies) | -20% |
| Free Trial Duration(Days) | 7 days | Unlimited | — |
| Gamification Level(score out of 10) | 9/10 (high) | 5/10 (moderate) | +80% |
| Daily Time Commitment(minutes) | 15+ recommended | Flexible/variable | — |
| Active Users(billions) | 100+ | 100+ | — |
| Cost(USD/month) | Free | Free | — |
All figures sourced from publicly available data. Last updated May 2026.
Brilliant
Premium subscription ($12.99/month or $99.99/year)
Khan Academy
Free (with optional premium features)🏆
Brilliant
STEM-only (Math, Physics, CS, Science)
Khan Academy
Multi-subject (Math, Science, ELA, Social Studies, History)🏆
Brilliant
Interactive puzzle and problem-based🏆
Khan Academy
Video lectures with practice exercises
Brilliant
Deep conceptual understanding, limited breadth
Khan Academy
Comprehensive curriculum coverage K-12 & college🏆
Brilliant
15+ minutes recommended
Khan Academy
Flexible, self-paced learning🏆
Brilliant
Limited classroom tools
Khan Academy
Strong district/classroom integration for 2026-27🏆
Brilliant
Full app experience available
Khan Academy
Full web and app experience
Brilliant
High engagement through gamification🏆
Khan Academy
Moderate engagement, more passive learning
Brilliant is worth it if you're a STEM learner who enjoys puzzle-based learning and can commit 15+ minutes daily. However, Khan Academy's free alternative is better for budget-conscious students or those needing broader subject coverage.
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| Attribute | Brilliant | Khan Academy |
|---|---|---|
| Free Core Content(percent) | Limited free access, premium required | 100% of core lessons free |
| Premium Subscription Cost(USD/year) | Required for full access | Optional premium features |
| Monthly Cost(USD) | $12.99 | Free |
| Annual Cost(USD) | $99.99 | Free |
| Cost Per Course(USD) | Free | — |
Show 1 more attributeCost(USD/month) Free — | ||
| Subject Coverage Breadth(subjects) | Math, physics, computer science, scientific thinking | All K-12 subjects plus standardized test prep |
| Subject Categories(count) | 4 (Math, Physics, CS, Science) | 5+ (Math, Science, ELA, History, Social Studies) |
| Video Lectures(format) | Minimal (problem-focused) | Extensive library |
| Subject Coverage Breadth(categories) | 4 main + AP/College | — |
| Interactivity Score(score/10) | Interactive puzzles and real-time feedback | Video + practice exercises |
| Advanced Learner Engagement(score/10) | Advanced problem-solving focus | College-prep and AP levels available |
| Mobile App Quality(rating/5) | Web-first, limited mobile optimization | Full-featured iOS and Android apps |
| Illustrative Math Curriculum Integration(grade levels) | No formal IM alignment | Grades 6-8 and Algebra 1 updated by summer 2026 |
| Video Lesson Availability(count) | Video content minimal, puzzle-focused | Thousands of instructional videos |
| Standardized Test Prep Coverage(exams) | Minimal exam-focused content | SAT, ACT, AP, state assessments |
| Gamification Level(score/10) | Advanced gamification with challenge levels | Basic progress tracking and badges |
| Gamification Level(score out of 10) | 9/10 (high) | 5/10 (moderate) |
| Interactive Practice Problems | Integrated with hints | — |
| District Platform Readiness(year) | Individual-focused, limited district integration | Full rollout in 2026-27 school year |
| Accessibility for Beginners(score/10) | Better for intermediate+ learners | Excellent scaffolding from basics |
| Free Trial Duration(Days) | 7 days | Unlimited |
| Teacher Dashboard(feature) | Basic | Advanced with 2026-27 expansion |
| Daily Time Commitment(minutes) | 15+ recommended | Flexible/variable |
| Active Users(billions) | 100+ | — |
| University Partnerships(Count) | Limited | — |
| Annual Revenue(Million USD) | Non-profit funded | — |
| Credential Recognition(Level) | Progress tracking only | — |
| Best for Grade Level(Range) | K-12 & Foundational | — |
| Daily New Enrollments(Thousands) | Data unavailable | — |
| User Growth Rate (YoY)(Percentage) | Steady (data unavailable) | — |
| Video Content | Extensive library | — |
| Minimum Age Recommendation(years) | All ages (K-12+) | — |
| User Satisfaction on Core Feature(%) | Highly rated | — |
| Retention Rate (24-hour recall)(%) | Concept-based mastery | — |
| Custom Content Upload | No | — |
Side-by-side comparison of numeric attributes