Brilliant vs CortexApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Brilliant
Master math and computer science through interactive, visual lessons. This app focuses on active problem-solving and personalized practice to build critical thinking and STEM skills. Ideal for students and lifelong learners seeking to deepen their understanding and confidence.
- Interactive problem-solving lessons
- Personalized practice sets
- Visual explanations of concepts
- Expert-crafted STEM courses
- Real-time feedback
- Builds critical thinking skills
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Brilliant is a superintelligent tutor for math and coding. Our team of experts from MIT and Harvard has built a world-class personalized learning system. For students from grade 5 to college and beyond – you work through problems with a tutor that sees where you’re stuck, can sketch right on your screen, asks the right questions, and guides you to real a-ha moments. Forget memorizing formulas. Brilliant is designed to build real understanding and help you excel. It’s there when you need it, adapts to how you think, and makes learning feel like a fun challenge instead of a chore. Master everything from foundational math and algebra to college-level calculus, Python, computer science, AI, neural networks, algorithms, data analysis, physics, and more. Join over 10 million people using Brilliant to reach their learning goals. WHY BRILLIANT WORKS - One-on-one learning for all Private tutoring is the most effective way to learn, but it’s expensive, hard to schedule, and out of reach for most families. Brilliant’s tutor works with you one-on-one, every single day, for a fraction of the cost. No scheduling. No waiting. Just learning. - Like someone sitting next to you Brilliant’s tutor can see what’s on your screen and react in real time, from highlighting parts of a problem to creating visualizations that bring hard concepts to life. - Expert-crafted curriculum Every course is crafted by our team of human experts from top institutions around the world. And with new and updated courses added every month, there’s always something new to explore. - Learning that adapts to you Brilliant’s tutor personalizes your experience in real time, adjusting to your skill level, filling gaps before they become problems, and helping you build confidence as you go. - Build true problem-solving skills Brilliant doesn’t give you answers. It guides you through problems and to your own a-ha moments. So while you’re learning, you’re also building critical thinking and analytical skills – and having fun. WHAT PEOPLE ARE SAYING “Koji doesn’t judge. It feels like talking to the most patient teacher.” — Alan “Going through a lesson with Koji is more active, interactive, and guided than traditional learning.” — Lory “She read the problem out loud and figured it out on her own — ‘Oh! I know! Never mind, Mom, I got it!’ I'm seeing those breakthroughs more often.” — Arianne Send feedback to ios@brilliant.org. LIKE US: https://facebook.com/brilliantorg FOLLOW US: https://x.com/brilliantorg Privacy Policy: https://brilliant.org/privacy_policy/ Terms of Use: https://brilliant.org/terms-of-use/
CortexApp
Enhance your cognitive abilities through engaging challenges. This application offers a fun and interactive platform to improve critical thinking and problem-solving skills. It's designed to make mental training enjoyable and accessible.
- Critical thinking training
- Problem-solving skill development
- Engaging challenges
- Fun learning experience
- Cognitive skill enhancement
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Train and sharpen your critical thinking and problem solving skills with cortex in an actual fun and engaging way
Screenshots
Verdict
The clearest difference is review sentiment: Brilliant at 79% against CortexApp's 0%. Brilliant also leads on chart position (#82 vs unranked). CortexApp's advantage is ads (none vs shown) and iOS requirement (14.0 vs 17.0). On price, in-app purchases, monetization model and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Brilliant sells 16 in-app purchases, starting at $19.99 per month and CortexApp sells 6 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Brilliant | CortexApp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (33K ratings) — better | — |
| Positive reviews | 79.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 33K — better | — |
| Update frequency | Weekly | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #82 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 104 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Brilliant.org | Gal Froy |
Customer experience
Brilliant
CortexApp
Bugs and requests
Brilliant
Reported bugs
4 issues- Progress not saving correctly
- Explanations not loading properly
- Home page not loading
- Difficulty cancelling subscription
Requested features
6 requests- Dark mode option
- Offline mode
- Spaced repetition practice
- Ability to bookmark/save difficult problems
- More detailed explanations
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- More courses in other scientific fields
CortexApp
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Brilliant
- Brilliant Premium - Personal stats & exclusive problems$19.991 Month
- Brilliant Premium: Fun, challenging problems in math and science by experts2 variants$24.991 Month
- Brilliant Premium$24.991 Month
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- Brilliant Premium with Tutor$30.001 Month
- Brilliant Premium: Fun, challenging problems in math and science by experts$74.991 Year
- Brilliant Premium: Fun, challenging problems in math and science by experts$96.991 Year
- Brilliant Premium: Fun, challenging problems in math and science by experts$111.991 Year
- Brilliant Premium$111.991 Year
- Brilliant Premium: Fun, challenging problems in math and science by experts2 variants$119.991 Year
- Brilliant Premium$127.991 Year
- Brilliant Premium7 Days trial$127.991 Year
- Brilliant Premium: Fun, challenging problems in math and science by experts$149.991 Year
- Brilliant Premium7 Days trial$149.991 Year
- Brilliant Premium7 Days trial$159.991 Year
- Brilliant Premium with Tutor7 Days trial$167.991 Year
- Brilliant Premium with Tutor7 Days trial$191.991 Year
CortexApp
- Monthly3 Days trial$7.991 Month
- Yearly$69.991 Year
- 100 gems$0.99
- 575 GEMS$4.99
- 1250 gems$9.99
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- 6750 gems$49.99









