Lock the scroll.
Unlock a language.
LKIN locks your distracting apps with Apple’s Screen Time — and the only key is a quick language practice session. Three words, and you’re in.
Real locks
Apple’s Screen Time enforces your locks at the system level — no willpower required. Which apps you lock never leaves your iPhone.
Learn to unlock
Every unlock costs a short practice session. Six languages, spaced repetition, a 12-stage curriculum, and clay-art flashcards for every word.
Live countdown
The Dynamic Island and Lock Screen carry your relock timer, live — so the window you earned is always in sight.
Streaks that stick
A practice calendar, daily goals, streak alerts — and your progress syncs to the cloud, so a new phone never costs you your streak.
LKIN Pro
Unlimited locked apps, every language, custom unlock windows, streak freezes, exclusive app icons, and no ads. 7-day free trial.
Private by design
Face ID checks stay in the Secure Enclave. Screen Time data stays on device. We can’t see what you lock — and we like it that way.