Jacks

Ring Timer and Activity Tracker for combat sports.

Record your workouts and find gyms and fighters to spar with.

Build and share your activity history.

Jacks is the only activity tracking app built specifically for combat sports. Whether you're into Boxing, MMA, Jiu-Jitsu, or Muay Thai, Jacks helps you track, log, and share your sparring and workouts like never before.

Go beyond a basic ring timer — with Jacks, you can:

• Log every sparring session and build a personal training record.
• Track your training history, including who you sparred with and where.
• Tag your gym, so you always know where you’ve been putting in work.
• Search for gyms and opponents, making it easy to connect, train while traveling, and level up your game.

Jacks is your training partner outside the ring — helping you stay accountable, measure your progress, and grow as a fighter.

View our privacy policy and conditions at the following link: https://thejacks.app/privacy-policy

View our terms of use at the following link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/