Kurobi: BJJ Journal & Tracker
Mark Isayan Sports iPhoneiPadiPod touch
Kurobi: BJJ Journal & Tracker is a free Sports app for iPhone and iPad by Mark Isayan. Requires iOS 16.4. Updated September 28, 2026.
- Price
- Free
- on the App Store
- Size
- 209 MB
- Age 12+
- Updated
- Sep 28
- 2026 · v2.1.5
Screenshots
About Kurobi: BJJ Journal & Tracker
Stop training blind. Kurobi turns every class, open mat and competition into a connected map of your jiu-jitsu. Log what happened, see how positions and moves connect, and pick what deserves work next. LOG WHILE IT’S FRESH Log what you drilled, rolled and competed before the details fade. Mark the positions and moves, which side you were on, and where you got stuck, what didn’t land and what you had no answer to. BUILD YOUR GAME MAP Every log adds evidence to a picture of your actual game. Trace the chains you keep coming back to, open the session behind any problem, and watch the map fill in as you train. SEE THE MOVES IN 3D Browse a curated map of 700+ positions and 1,400+ animated moves. Schematic 3D previews play a whole chain end to end, so you can see the shape of something you only half-remember from class. FIND WHAT TO PRACTICE NEXT Kurobi reads the outcomes you logged and surfaces what needs work: the moves that didn’t land, the positions you got stuck in, what you had no answer to, and the moves gone cold. Your practice queue comes from your own mat time, not a generic curriculum. BUILT FOR THE GYM Logging and the map work offline, and your data syncs when you reconnect. Big targets and few taps, so a log fits between rounds. KUROBI PRO Eligible new subscribers can start a 14-day free trial. After the trial it continues at the selected plan’s price unless cancelled. Prices, trial eligibility and promotional terms are shown before you confirm. Manage or cancel in your Apple Account settings. To avoid renewal after a free trial, cancel at least 24 hours before it ends. Kurobi’s map is a curated model of grappling, not a complete one: real positions, names and variations differ between instructors, academies and rulesets. It supports your review and does not replace qualified in-person instruction, supervision or your own judgment. Turn your next session into a practice plan. Terms of Use: https://kurobiapp.com/terms Privacy Policy: https://kurobiapp.com/privacy
What’s new
Version 2.1.5 · Updated September 28, 2026
Performance and general improvements
App privacy
The developer, Mark Isayan, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Health & Fitness: Fitness
- Purchases: Purchase History
- Location: Coarse Location
- Identifiers: User ID, Device ID
- Usage Data: Product Interaction, Advertising Data
- User Content: Other User Content
- Contact Info: Email Address
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Analytics, Product Personalization, App Functionality
Alternatives to Kurobi: BJJ Journal & Tracker
Looking for apps like Kurobi: BJJ Journal & Tracker? Here are 6 similar apps on the App Store. The highest rated is BJJ Techniques - Jiu Jitsu (5.0/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Kurobi: BJJ Journal & Tracker | – | Free | September 28, 2026 | |
| Ground CTRL: BJJ | 3.9 / 5 (7) | Free | May 15, 2026 | Compare |
| BJJ Techniques - Jiu Jitsu | 5.0 / 5 (1) | Free | Oct 12, 2026 | Compare |
| Underhook: BJJ & Jiu Jitsu | 5.0 / 5 (7) | Free | Oct 14, 2026 | Compare |
| Tatami: BJJ Jiu-Jitsu Coach | 5.0 / 5 (2) | Free | Feb 28, 2026 | Compare |
| Jiujify | – | Free | Oct 5, 2026 | Compare |
| BJJ Journal & Training Log | 5.0 / 5 (3) | Free | May 7, 2026 | Compare |