BJJCraft: Make Your BJJ System
Turn Techniques into a System
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Build your own BJJ OS：Organize your techniques, videos, and flowcharts into your own game—with AI helping you structure, search, and refine what actually works for you.
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/
・Added flowchart templates so you can build your own flowcharts from curated presets in just a few taps.
・Added in-app announcements to deliver updates directly from the team.
・Share cards now show your cumulative sparring count with a cleaner, easier-to-read layout.
・Refined the first-time tutorial and added a hint on how to use the share feature.
・Increased paid plan storage to 20GB.
・Improved overall stability and usability across the app.
The developer, Kazuki Umemura, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- TJDC LLC
- Size
- 61.5 MB
- Category
- Sports
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 2 more
- English, Japanese, Portuguese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- BJJ Craft Standard (Monthly) $4.99
- Copyright
- © Kazuki Umemura