Block scrolling.
Learn languages.

On Android, the system won't let an app reliably know when another app comes to the foreground without it. We use the Accessibility Service only to detect the moment a blocked app opens, so the quiz can appear instantly. We do not read what you type, screen content, passwords, or notifications. (The upcoming iPhone version uses Apple's Screen Time framework instead — no Accessibility access.)

The blocking and quiz loop is fully offline. Cards, decks, statistics, settings — all stored locally on your device in the app's private storage; uninstall and it's wiped. Only AI generation and photo-to-card need a connection (they call OpenAI). No account, no cloud sync.

The free tier has limits; full AI generation and photo-to-card unlock with a subscription. When you use it, your prompt goes directly to OpenAI for processing — we do not store it.

Android: Google Play → your profile → Payments & subscriptions → Subscriptions → LLLock → Cancel. iPhone: Settings → your name → Subscriptions → LLLock → Cancel. Either way it takes effect at the end of the current billing period, and uninstalling the app does not cancel it.

Almost. Anything you can launch from your home screen — social, games, news, dating, video, even web browsers. System apps like Settings and Phone are off-limits to keep your phone usable.

Almost — the iPhone version is in the works and coming to the App Store soon. Join the iPhone waitlist to get notified at launch. On Android, LLLock is on Google Play today. Same idea on both: pass a quick quiz to unlock a blocked app (Accessibility on Android, Screen Time on iPhone).

Yes — that's exactly what LLLock does. You choose which apps to block (social media, games, news…), and each time you open one, LLLock shows a short vocabulary quiz first. Answer five words and the app unlocks. It turns reflex scrolling into language practice — on Android today, with the iPhone version coming soon.

LLLock is built for exactly that. Instead of only blocking distracting apps, it puts a quick language quiz in front of them — so the time you'd otherwise spend scrolling becomes vocabulary you actually keep. No account, no ads, free to start, with optional AI flashcard generation.