# Kurobi: BJJ Journal & Tracker — Jiu Jitsu Notes, 3D Game Map

> Jiu Jitsu training journal and performance tracker with a visual game map. (iPhone/iPad app by Mark Isayan.)

- Source: https://appshunter.io/ios/app/kurobi-bjj-journal-and-tracker/id6773536053 (this page in markdown: same URL + `.md`)
- Developer: [Mark Isayan](https://appshunter.io/developer/1880254385)
- Category: Sports, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 16.4 · 209 MB
- Languages: American English, Brazilian Portuguese, European Spanish
- Released: 2026-08-27
- Data updated: 2026-10-07
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/kurobi-bjj-journal-and-tracker/id6773536053/reviews.md

## What is Kurobi?

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

## Key features

- Log training sessions and mat time
- Visualize your jiu-jitsu game with a connected map
- Analyze position and move connections
- Discover areas needing practice
- Browse 3D animated move previews
- Offline logging and data sync
- Practice queue based on personal performance

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Kurobi Pro Monthly | $12.99 | per month |
| Kurobi Pro Yearly | $119.99 | per year |


## Is Kurobi safe?

Not enough ratings yet to assess Kurobi.

## Is Kurobi legit?

Kurobi: BJJ Journal & Tracker has limited verification signals. The AppsHunter Legitimacy Score for Kurobi is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/kurobi-bjj-journal-and-tracker/id6773536053/reviews.md

### 5/5 — BEST BJJ APP

*2026-09-27*

Great app, worth every $

**Developer response:** Thank you, that means a lot! If there's anything you'd like to see in Kurobi, let us know. Enjoy the training! 🥋

## Frequently asked questions about Kurobi

### What is Kurobi?

Kurobi is a BJJ journal and tracker that helps you log your training sessions, visualize your game, and identify what to practice next. It turns your mat time into a connected map of your progress.

### Does Kurobi have ads?

Kurobi does not contain advertisements. The app offers a free tier for basic logging and a premium subscription for advanced features.

### What are the subscription options for Kurobi Pro?

Kurobi Pro offers monthly and yearly subscription plans. The monthly plan is $12.99 and the yearly plan is $119.99. Both plans include a 14-day free trial.

### How does Kurobi help me improve my jiu-jitsu?

Kurobi analyzes the outcomes you log from your training sessions, highlighting moves that didn't land, positions you got stuck in, and techniques that are underutilized. This data forms your personalized practice queue.

### Can I use Kurobi offline?

Yes, logging and the game map features in Kurobi work offline. Your data will sync automatically once you reconnect to the internet.

### What devices is Kurobi available on?

Kurobi is currently supported on iPhone devices. The app is designed with big targets and few taps for easy use between rounds.

### How do I cancel my Kurobi Pro trial?

To avoid renewal after a free trial, you must cancel at least 24 hours before it ends. You can manage or cancel your subscription in your Apple Account settings.

### Does Kurobi replace in-person instruction?

Kurobi's map is a curated model of grappling and supports your review of training. It does not replace qualified in-person instruction, supervision, or your own judgment.

## Version history (last 5 releases)

### 2.1.5 — 2026-09-28

Performance and general improvements

### 2.1.4 — 2026-09-26

Performance and general improvements.

### 2.1.2 — 2026-09-24

Performance and general improvements.

### 2.0.4 — 2026-09-17

Performance and general improvements.

### 2.0.1 — 2026-09-15

Performance and general improvements

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## Related topics

[bjj training journal](https://appshunter.io/ios/topics/bjj-training-journal) · [martial arts training journal](https://appshunter.io/ios/topics/martial-arts-training-journal) · [jiu jitsu journal](https://appshunter.io/ios/topics/jiu-jitsu-journal) · [bjj logbook](https://appshunter.io/ios/topics/bjj-logbook)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-07.*