iPhone app
Lock your phone. Grow your moss.
Mosslock pauses the apps that pull you away while you study, using Apple's Screen Time features. The time your apps stay locked becomes your study record, and every finished session plants a patch of moss.
Download on the App StoreWhat it does
- Pause the apps you pick. Choose apps or whole categories once. Start a session (25 or 50 minutes free, up to 4 hours with Pro) and they stay paused until the timer ends, then open again on their own.
- A study record you can trust. Only time your apps were actually locked is counted, by day and by subject.
- A moss garden. Each session becomes a patch of moss. Longer sessions grow bigger moss. Stop early and that patch withers.
- Mosslock Pro. Your full study history, this month's report with a subject breakdown, weekly study hours that start on their own, strict mode, sessions up to 4 hours and unlimited subjects.
Always yours to switch off
When a session ends, your apps open again. If a paused app still shows the moss screen, tap "Session ended — Unlock" or open Mosslock. You can also turn off Mosslock's Screen Time access in the Settings app, or delete the app, at any time. How to turn blocking off
Private by design
No account, no ads, no analytics. Mosslock never learns which apps you chose or how you use them, and your study records stay on your iPhone. Purchases are processed by Apple and managed by RevenueCat with an anonymous ID. Privacy Policy