Brain vs SubmitKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Brain
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Brain-Jiu-Jitsu is a mobile application designed to help you manage your training in Brazilian Jiu-Jitsu by providing support tools to track your progress, analyze your performance, and reference skills and techniques in an intuitive Mind Map framework. Brazilian Jiu-Jitsu is a uniquely cerebral martial art that combines physical fitness and skill with intellectual challenges. Every opponent is a puzzle. Every roll is a test. Every detail matters. Brain-Jiu-Jitsu represents the cognitive aspect of the sport to help you train harder and smarter.
SubmitKit
Easily save and organize BJJ technique videos from social media into a personal library. AI automatically tags each technique, allowing for quick searching and filtering to build and improve your grappling game.
- Import videos from Instagram and Facebook
- AI auto-tagging of techniques
- Full-text search of library
- Filter by technique tags
- Track drilled techniques
- Build personalized BJJ game
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You save the video. Then it disappears. Buried in Instagram saves. Lost in a folder you’ll never open. Gone by the time you actually need it. SubmitKit fixes that. In a few taps, you can import any BJJ technique video from Instagram or Facebook directly into your own personal library. No more scrolling back through months of saved posts. No more screenshot folders. No more forgetting that sweep you were obsessed with for a week. IMPORT IN SECONDS See a technique you love? Tap share, select SubmitKit, and open the app. Your video is in your library in seconds, tagged and ready whenever you are. AI TAGS EVERY TECHNIQUE AUTOMATICALLY You don’t have to organise anything. SubmitKit’s AI reads each video and tags it instantly — by technique type, position, gi or no-gi, and difficulty level. Every technique lands exactly where it belongs, without you lifting a finger. SEARCH YOUR ENTIRE LIBRARY Looking for everything you’ve saved from closed guard? Filter by position. Want no-gi submissions only? One tap. SubmitKit turns your growing collection into something you can actually navigate and use. BUILD YOUR GAME BJJ rewards people who know their game. Not a little of everything — a deep, connected set of techniques that work together. SubmitKit is where you build that. Import the techniques that suit your body type, your style, your goals. Review them before training. Track what you’ve drilled. Watch your game take shape. Whether you’ve just stepped on the mat for the first time or you’ve been training for a few years and want to get serious about your development — SubmitKit gives you a system. WHAT YOU GET • Import technique videos from Instagram and Facebook • AI auto-tagging by type, position, gi/no-gi, and difficulty • Full-text search across your entire library • Filter by any combination of tags • Mark techniques as drilled to track your progress • Clean, fast, dark interface built for grapplers 7-DAY FREE TRIAL Start your free 7-day trial when you’re ready — explore the full app, import as many techniques as you want, and see exactly what SubmitKit does for your game before you spend a cent. After your trial, SubmitKit is $6.99/month or save with an annual plan. Build Your Game. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Brain at none against SubmitKit's 2. Brain also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). SubmitKit's advantage is update cadence (weekly vs every 6 weeks). On price and ads 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. SubmitKit sells 2 in-app purchases, starting at $6.99 per month. Brain asks for nothing beyond the download.
Brain ships an update every 6 weeks, SubmitKit weekly. The most recent releases landed on September 29, 2026 and October 8, 2026 respectively.
| Parameter | Brain | SubmitKit |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 41 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuhiro Miyachi | JAYCO LIMITED LIABILITY COMPANY |
In-app purchases
Brain
No in-app purchases
SubmitKit
- SubmitKit Pro7 Days trial$6.991 Month
- SubmitKit7 Days trial$47.991 Year








