Dark Matter Jiu Jitsu
Track your training at DMJJ
Free · Designed for iPad. Not verified for macOS.
Dark Matter Jiu-Jitsu is your personal Jiu-Jitsu
training companion.
Track your classes, build streaks, earn badges, stay up to date at the academy, and watch
technique videos.
Features:
Daily training streak tracking - stay motivated!
Class attendance records - see your progress
Badges & achievements - get rewarded
Technique video library - improve your skills
Goal setting - set targets and achieve them
Points & rewards system - unlock achievements
Age-verified and COPPA compliant for users 13+.
Join Dark Matter Jiu-Jitsu and take your training to the next level!
Ratings & Reviews
New to 1.1.0
- New Pro Shop tab — browse Dark Matter merch (apparel, rashguards, patches, accessories)
The "Pro Shop" tab in this update is a display-only catalog for physical
gym merchandise (apparel, rashguards, patches, accessories).
Members purchase items in person at our gym (cash, card, or check).
There is no in-app purchase, no checkout flow, no external payment link,
and no digital goods. Each product detail page shows photos, sizes, and
the message "Available at the gym — see an instructor or front desk."
- Tap notifications to view full details, with a delete option for ones you've read
- Smoother keyboard handling across login, signup, profile editing, and more
- Faster updates — bug fixes and improvements now arrive automatically
- Date and time displays now show correctly in Phoenix time
The developer, Korey Kerber, 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
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Korey Kerber
- Size
- 23.2 MB
- Category
- Health & Fitness
- 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
- Age Rating
13+
- 13+
- This app is rated 13+ with content restrictions.
Some content may be rated higher, and may therefore be restricted and managed by the developer through in-app controls. - In-App Controls
Age Assurance
Parental Controls
Frequent
Contests
Contains
User-Generated Content
- Copyright
- © Dark Matter Jiu-Jitsu