About this app
The J. K. Lee app is the place where you can continue your training at home! Watch videos of your instructors demonstrating forms, self defense, and exercises that can help you improve your technique. Stay up to date with a live calendar. Receive notifications for changes in class times and event locations. The J. K. Lee app is the one stop location for taking your black belt journey to the next level!
Latest release
What’s New
Bug fixes. General stability updates.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
- First observed Aug 16, 2026 · 2:09 PM Free
Screenshots
