# BJJCraft: Make Your BJJ System — Turn Techniques into a System

> Personalized BJJ system builder with AI-powered organization and search. (iPhone/iPad app by Kazuki Umemura.)

- Source: https://appshunter.io/ios/app/bjjcraft-make-your-bjj-system/id6756968071 (this page in markdown: same URL + `.md`)
- Developer: [Kazuki Umemura](https://appshunter.io/developer/1863937622)
- Category: Sports, Education
- Price: Free with in-app purchases
- Rating: 4.70/5 from 6 App Store ratings · 25 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 59 MB
- Languages: Japanese, American English, Brazilian Portuguese
- Released: 2026-01-20
- Data updated: 2026-08-29
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/bjjcraft-make-your-bjj-system/id6756968071/reviews.md

## What is BJJCraft?

Build your own BJJ OS — your personal game blueprint.

BJJCraft is an app that helps you turn your BJJ knowledge into a searchable, structured system you can apply and continuously improve. 
It was built from real competition and teaching experience by the head instructor of Tokyo Jiujitsu Club, a 2nd-degree BJJ black belt and multiple-time IBJJF champion.

Even when people train the same way, some get stronger and others don't.
The difference isn't talent.
It's how well they organize and operate their own BJJ OS — their personal game system.

Training notes, technique videos, flowcharts.
BJJCraft brings scattered BJJ knowledge together and turns it into a system you can search, use, and continuously build upon — your own BJJ OS (game blueprint).

AI in BJJCraft doesn't give you generic answers.
It works quietly in the background to organize, search, and structure your data, helping you turn what actually works for you into long-term BJJ knowledge assets.

Key Features

■ My Knowledge

Daily training takeaways, videos scattered across social media or your phone, your personal technique flowcharts, and what you're currently focusing on in training.

BJJCraft's organizing groups and AI support connect recording → organization → intention into training that actually makes you stronger.

■ Video & Notes Library

Save techniques you've learned or studied with videos and notes.
Organize them by position or custom groups, so you can instantly find the right technique for the right situation.

■ Flowcharts

Visually organize technique sequences and decision branches.
From positions to next transitions, and responses to your opponent's reactions, build your personal game blueprint step by step.

■ AI Search Assistant

Search your own records using natural language.
Find things like "positions where I get stuck in half guard" or "techniques I've been using a lot recently," directly from your own data.

■ AI Organization Support

Automatically organizes videos, notes, and flowcharts based on your groups.
Keeps your knowledge from becoming cluttered and ensures it stays reusable and practical over time.

Recommended For

- Your training notes and videos are scattered across your phone and bookmarks
- You want to systematize your own techniques
- Generic AI answers don't feel relevant to your game
- You want to build a BJJ style that fits your body and personality
- You want to turn your training history into a lasting asset

Subscription

Basic features are available for free.

【BJJCraft Standard Plan (Monthly)】
Price: $4.99/month
Duration: 1 month (auto-renewable monthly subscription)
Free Trial: 14 days

Includes: Expanded AI search and organization features, larger storage capacity, unlimited training notes

Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Any unused portion of a free trial period will be forfeited when you purchase a subscription.

From white belt to black belt.
BJJCraft is a place where every Jiu-Jitsu practitioner can build and evolve their own BJJ OS.

Terms of Service: https://bjj-craft.tekural.com/terms
Privacy Policy: https://bjj-craft.tekural.com/privacy
EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Personalized BJJ system creation
- Organize training notes and videos
- Create technique flowcharts
- AI-powered search and organization
- Build a personal game blueprint

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| BJJ Craft Standard (Monthly) | $4.99 | per month |


## Recent user reviews (10 of 25)

All indexed reviews: https://appshunter.io/ios/app/bjjcraft-make-your-bjj-system/id6756968071/reviews.md

### 4/5 — 楽しく使えます！ロジカル派な動作体型の選手にオススメします！

*2026-05-16*

自分なりの学びをメモとして残すことに特化した柔術専用ノートです。

スパーの本数、練習の数、頑張った記録として残せるところが嬉しいです。

【修正依頼】
文字入力で小文字、濁音半濁音等を入力しようとすると、確定してしまうバグあり。

【機能追加の希望】
自分なりのメモを何らかの形でエクスポートできる機能があれば嬉しいです。
（csvなど。）

**Developer response:** ご活用いただきありがとうございます！
参考にさせていただきます。

不具合に関してご迷惑をおかけしました。修正いたしましたのでご確認いただけますと幸いです。
引き続きよろしくお願いいたします！

### 5/5 — 頭の整理に良いです

*2026-05-12*

趣味で柔術してますが、動きが止まるところがあり、フローチャートに起こすことでどんなスキルが不足しているか見える化できました。とても良いアプリです。フローチャートの全体図を確認している時、誤ってフローを動かしてしまうことが良くあるので、編集ロックモードの追加をしてほしいです。フローのタイトル名の文字制限も増やしてくれると文章で管理しやすくなるので改善してほしいです！

**Developer response:** ご活用いただきありがとうございます。
フィードバックもありがとうございます。
今後の開発の参考にさせていただきます。
フローのステップに関しては文字数制限を増やしましたのと、ステップごとにメモが残せる機能ございますので良ければお使いくださいませ！
引き続きよろしくお願いいたします。

### 5/5 — Purple Belt Competitor

*2026-04-22*

I have found zero bugs in this app. You can keep memos, set daily and monthly goals. Track your rolls. Add Videos added with TIME Stamps. Flow chart features to make your own charts. Video groups so you can focus on a topic and more… I absolutely love this app. I am wishing this team the best!

**Developer response:** Thank you so much for the amazing review!
We’re thrilled to hear you’re enjoying the app. Your support and kind words truly mean a lot to us! Thanks for being part of the journey!

### 5/5 — BJJCraft

*2026-04-19*

This is a great tool for organizing your JJ progression and tracking the thousands of videos that I view, and then forget about!  I am enjoying it.

### 5/5 — 有能！また一つ強くなれる

*2026-04-11*

とても使いやすく、これでまた練習が楽しくなると思いました、
今まで個人で煩雑に管理していた、メモや動画をわかりやすくまとめることができる。フローチャートが特にありがたく、練習で実践したいこと、うまくいかなかった場合等のなんとなく頭の中で整理されている内容を可視化できる！

**Developer response:** ご活用いただきありがとうございます！
是非引き続きご活用のほどよろしくお願いいたします！

### 5/5 — テクニックの内省に便利

*2026-04-03*

あらゆる媒体で見られる動画の集約場所としても、自身の練習内容の言語化をフローチャートに起こして言語化するのにも便利

**Developer response:** ありがとうございます！！
引き続きよろしくお願いいたします！

### 5/5 — 使いやすい

*2026-03-29*

柔術を始めて1年ですが技が一つの流れになって整理出来ていなかったのでこのアプリはすごく助かります。フローチャートは一度作ると何度も見返せて良いです

**Developer response:** ありがとうございます！初心者向けのサンプルフローチャート6種類も使えるようになりましたので是非お使いくださいませ！

### 5/5 — Great App for New BJJ Practitioners

*2026-03-28*

Very intuitive. Literally was thinking how I can record the new moves I learn and train at BJJ practice, and here came the answer in app form. Looking forward to integrating this into my process, loving it so far!

**Developer response:** Thank you so much! We’re really happy to hear BJJCraft is helping you organize your training. Hope it becomes a valuable part of your BJJ journey!

### 5/5 — これで自分の成果を可視化！

*2026-03-20*

このアプリ機能でスパーリングの本数を記録できるので、今までの積み重ねが可視化されるのがいいです！また、隙間時間に見たい動画を選別したり、自分の戦い方をアウトプットするのに最適です！
占い機能はその日出た占い技を狙うと極まりやすい傾向があります[僕の場合笑]

**Developer response:** ご活用いただきありがとうございます！
戦い方のアウトプットなど是非たくさん使ってみてくださいませ。
占い機能も引き続きお願いいたします笑

### 5/5 — 使いやすい！

*2026-03-17*

柔術のテクニックはフローチャートで管理するに限る。
技の派生をしっかり自分に落とし込むには最高のアプリだと思います。
ふと、なにか思いついた時にすぐにメモして忘れずにいられるのがとても良いです。

## Frequently asked questions about BJJCraft

### What is BJJCraft?

BJJCraft is an app designed to help you transform your Brazilian Jiu-Jitsu knowledge into a structured, searchable system. It allows you to organize training notes, videos, and techniques to build a personalized game blueprint.

### How does BJJCraft use AI?

The AI in BJJCraft works in the background to organize, search, and structure your data. It helps you identify what works best for your game and turn it into lasting knowledge assets, rather than providing generic answers.

### Can I save techniques and videos in BJJCraft?

Yes, BJJCraft features a Video & Notes Library where you can save techniques you've learned or studied. You can organize them by position or custom groups for quick access.

### What are flowcharts in BJJCraft?

Flowcharts in BJJCraft allow you to visually organize technique sequences and decision branches. You can map out transitions, responses to opponent actions, and build your personal game blueprint step by step.

### How does the AI Search Assistant work in BJJCraft?

The AI Search Assistant lets you search your own records using natural language. You can ask questions like 'positions where I get stuck in half guard' or 'techniques I've been using a lot recently' to find relevant information.

### What are the subscription options for BJJCraft?

BJJCraft offers a Standard Plan for $2.99/month, which includes expanded AI features, larger storage, and unlimited training notes. A 14-day free trial is available for this subscription.

### How do I cancel my BJJCraft subscription?

You can manage and cancel your subscriptions by going to your App Store account settings. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period.

### What devices is BJJCraft available on?

BJJCraft is available on iPhone, iPad, and iPod devices, indicated by its compatibility with iOS.

## Version history (last 5 releases)

### 1.1.8 — 2026-08-23

We have added a lock mode to prevent accidental tapping of steps while viewing the flowchart.

### 1.1.7 — 2026-08-17

We have improved the operating speed.

### 1.1.6 — 2026-08-09

・Added group sharing. You can now send a My Knowledge group to a training partner with a share link, and recipients can preview the contents before adding it
・Flowcharts now support copying multiple steps at once, with a drag-to-resize selection box for picking exactly the range you want
・Groups (tags) can now be sorted in the note and technique editors as well as in your lists, and your chosen order is saved across devices
・You can now tap anywhere on the video progress bar to jump to that moment, and unlisted Vimeo videos are now supported
・Made the first-time walkthrough easier to follow, with a progress gauge and the option to skip optional steps
・Fixed issues with video playback, the subscription screen, and opening the app from a share link, and improved overall stability

### 1.1.5 — 2026-06-23

・You can now press and hold to select and copy text from AI Consultation and AI Search replies
・Your saved content now stays visible even when you're offline or your connection is unstable
・Improved overall stability, including responsiveness on some devices

### 1.1.4 — 2026-06-16

・You can now press and hold to select and copy text from AI Consultation and AI Search replies
・Your saved content now stays visible even when you're offline or your connection is unstable
・Improved overall stability, including responsiveness on some devices

## Related topics

[bjj craft](https://appshunter.io/ios/topics/bjj-craft) · [your bjj](https://appshunter.io/ios/topics/your-bjj) · [elocal](https://appshunter.io/ios/topics/elocal)

---

*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 2026-08-29.*