Jiu Jitsu Reference
BJJ Knowledge Journal
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Adds the mobile Knowledge graph, refreshed Knowledge detail layout, and reviewed Knowledge node image support.
Jiu Jitsu Reference helps you log live training moments, track what you land, miss, and concede, and review your personal jiu-jitsu knowledge over time.
Create logs quickly, connect them to training partners and knowledge nodes, and use the app to spot what is working, what is slipping, and what needs study next.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Adds the mobile Knowledge graph, refreshed Knowledge detail layout, and reviewed Knowledge node image support.
The developer, Eric Javier Hernandez Saura, 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:
- Contact Info
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Eric Javier Hernandez Saura
- Size
- 78.8 MB
- Category
- Sports
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 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
- Age Rating
4+
- 4+
- Copyright
- © 2026 Jiu Jitsu Reference