Brain vs Kiro
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.
Kiro
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No matter your sports, get on the path to success with the most flexible app to follow and improve all your practice. Kiro is the first multi-sport coaching and sharing app designed to adapt to YOU - not the other way around. Discover a new way to train where enjoyment and consistency are the keys to achieving any goal. From planning to analyzing your sessions, Kiro helps you structure your training like a pro, track every activity, and stay motivated so you can make steady, lasting progress. - Bring all your sports together and track every activity - Organize and visualize your training like a pro - Stay motivated and hit your goals through joy and consistency - Build sustainable progress with a complete, varied practice - Give each sport the analysis it deserves and view your training as a whole - Take your training to the next level with sessions created by top athletes - Get support and inspiration from a community of athletes of all kinds
Screenshots
Verdict
Brain and Kiro are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
Brain ships an update every 6 weeks, Kiro every 2 months. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.
| Parameter | Brain | Kiro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 41 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuhiro Miyachi | Kiro Sports |
In-app purchases
Brain
No in-app purchases
Kiro
No in-app purchases









