Learn before you scroll.

Braintoll is a mobile app for Android (iOS coming later) that puts a short flashcard review in front of the apps you tend to open without thinking. Pick the apps you want to interrupt, build a small library of learning cards — written by hand or generated by AI — and Braintoll asks you to review a few and rate your recall before it lets you through: pay the “toll.”

Willpower alone rarely works, because opening the app is a reflex, not a decision — by the time you notice, you’re already scrolling. What tends to help is a deliberate pause at the exact moment of opening: a lock screen, a delay, or a small task that requires a moment of focus. Braintoll uses the third approach — a quick flashcard review — so the interruption is useful instead of just an obstacle.

Spaced repetition is a study technique that schedules reviews right before you’re likely to forget something, instead of at fixed intervals — cards you know well come back less often, cards you struggle with come back sooner. Braintoll uses this to schedule your library automatically: your Again, Hard, Good, or Easy rating during each toll decides when that card resurfaces next.

Open a blocked app and Braintoll shows a card from your library instead. Reveal the answer, then rate your own recall: Again, Hard, Good, or Easy. Only Easy ratings count toward the toll — anything else puts the card back in the queue for another pass. You choose how many Easy ratings are needed and how many minutes of access you get afterward; “Keep my attention” returns you home instead, any time.

Nothing bad happens — the card just goes back into the queue for another pass in the same session, and you keep reviewing until enough cards are rated Easy. There’s no penalty, streak reset, or lockout for a slow recall; Braintoll only tracks how many cards you’ve marked Easy toward the current toll.

Yes, any time. “Easy answers per toll” and the length of temporary access afterward are both adjustable in the app’s toll settings, so you can make the toll quick and light or slow and deliberate — whatever keeps it useful for you.

AI generation is one of three equal ways to build a set — alongside manual entry and built-in presets — and it’s the fastest: give it a topic, pasted text, or a PDF/PPTX/DOCX file, and Braintoll drafts a full set sized to fit the material, no need to specify a card count. Review and edit the draft before saving, so the deck stays yours.

No. On Android, Braintoll’s accessibility monitoring recognizes only the package names of the apps you’ve chosen to block — never message content, screen content, or browsing activity. The only content that leaves your device is what you explicitly submit for AI card generation.

Similar underneath — both use spaced repetition with an Again/Hard/Good/Easy rating scale. The difference is when you’re prompted: Anki is something you open on your own, while Braintoll triggers automatically when you open an app you’ve chosen to block, so review happens at the exact moment you’d otherwise be scrolling, instead of requiring you to remember to study.

Screen Time and Digital Wellbeing mostly show usage stats or let you set a hard daily limit that’s easy to snooze or ignore. Braintoll doesn’t set a limit — it puts a small, repeatable cost in front of every open: a flashcard toll you pay with Easy-rated recall, every time, not just once a day.

Yes. The free plan blocks one app and includes 3 AI card generations a month, with unlimited manual and preset cards. Premium removes the app limit and raises AI generation to up to 10 a day (30 a month).

Android is the first platform and launches on Google Play shortly. iOS doesn’t expose the same system-level app-blocking capability Android does, so a native iOS blocker is a separately scoped effort that will take longer — join the waitlist to be notified the moment it’s ready.