Daily exercise contract

Work out first.
Then the apps you chose unlock.

Lvji is a daily exercise contract. Finish today’s goal before the entertainment apps you chose are available again. Counting stays on this device. No account.

Store links will be added at launch. Questions? weigan.huang@gmail.com

Built for real discipline

Exercise comes first, entertainment second. Camera frames, steps, and the apps you lock stay on this device.

Daily contract

Free includes one sport a day: jump rope or walking, plus app lock. Lvji Pro adds the other sports and lets you put more than one sport in the same day.

On-device counting

Jump rope uses the camera. Walking uses today’s step count. Frames stay in memory, are not saved to Photos, and are not uploaded.

App lock

iPhone and iPad: after you allow Screen Time and confirm with Face ID or your passcode, 律己 shields the apps you pick until today’s contract is done. 律己 does not read messages or other apps’ content. Android: optional Accessibility lock, explained in the app before you turn it on. In system settings that service is labeled 运动解锁.

Privacy-first

No user accounts, no third-party analytics or ads in the app source. Read the full privacy policy.

Sports & platforms

Free includes one sport a day, jump rope or walking, and app lock. Lvji Pro adds push-ups, sit-ups, squats, plank, and hula hoop, and more than one sport in the same day.

Sport Plan iPhone / iPad Android Notes
Jump rope Free Yes Yes Camera counting on this device
Walking (steps) Free Yes Yes Motion & Fitness / activity recognition
Push-ups Pro Yes Yes On-device pose counting
Sit-ups Pro Yes Yes On-device pose counting
Squats Pro Yes Yes On-device pose counting
Plank Pro Yes Yes Timed hold, on this device
Hula hoop Pro Yes Yes On-device pose counting

This matches Lvji online.longtou.jumpunlock version 1.0.1. The store shows the local price and any free trial before you subscribe.

Lvji Pro

Lvji Pro is an optional monthly subscription. In the United States it is US $2.99 per month with a 7-day free trial. The App Store and Google Play show the local price and any trial before you subscribe. Jump rope, walking, and app lock work without subscribing.

  • Push-ups, sit-ups, squats, plank, and hula hoop
  • More than one sport in the same day
  • Payment, renewal, and cancellation are handled by the store. There is no separate billing server.