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A passive Anki alternative

Spaced repetition,
without the studying.

LearnScreen keeps Anki's spaced-repetition engine but removes the deck-building and the daily study session. It ships with 1,080+ curated words, schedules them with the Leitner system, and shows each card the moment you reach for a distracting app — so the review comes to you instead of waiting in an app you have to remember to open.

Free to try · No account · 100% offline

LearnScreen showing a Leitner-scheduled vocabulary flashcard when a blocked app is opened on iPhone

Why people look for an app like Anki

Anki is a superb spaced-repetition tool — and its scheduling is exactly why it works. The friction isn't the algorithm; it's everything around it. You have to build or download a deck, format cards, and, most importantly, decide to open the app and study every single day. Miss a few days and the review queue balloons into a chore.

That's the gap a passive alternative fills. Memory rewards frequency over duration: seeing a word for five seconds across many short reviews builds stronger recall than one long cram session. The hard part has always been the trigger — remembering to review. So the most useful thing an Anki alternative can do is remove the trigger entirely.

LearnScreen attaches each review to the most reliable habit you have: reaching for your phone. You keep the spaced-repetition science and drop the daily discipline. Read the full case for passive learning.

LearnScreen vs. Anki vs. Duolingo

All three help you learn vocabulary. They differ on one thing that decides whether you'll actually stick with it: who has to start the session.

Comparison of LearnScreen, Anki and Duolingo across delivery model, spaced repetition, setup, streak dependence and platform.
  LearnScreen Anki Duolingo
How a review starts Comes to you when you open a blocked app You open the app to study You open the app to study
Spaced repetition Yes — Leitner system Yes — SM-2 / FSRS Limited
Setup before you learn None — 1,080+ words built in Build or download decks Pick a course
Depends on a daily streak No Queue grows if you skip Yes, by design
Custom words Yes — unlimited, 11 languages Yes — core strength No
Works offline Yes Yes Partly
Platform iPhone (iOS) Desktop, iOS, Android iOS, Android, web

Anki and Duolingo are trademarks of their respective owners. Comparison reflects each app's default learning model, not an exhaustive feature list.

Same science, no study session

You never open LearnScreen to review. The spaced-repetition card appears the moment you reach for a distraction — and steps out of the way the second you answer.

1

Pick your distractions

Choose the apps that pull you in — Instagram, TikTok, X, games. LearnScreen shields them using Apple's Screen Time API.

2

The scheduler picks a card

The Leitner system chooses the word you're closest to forgetting and shows it the instant you open a blocked app — no deck to open.

3

Answer and carry on

Tap "I know" or "I don't know." Correct words back off along widening intervals; missed ones return sooner. Then the app unlocks.

What you keep —
and what you drop

Keep: real spaced repetition

The Leitner system surfaces each word right before you'd forget it — the same interval science that makes Anki effective, spread across dozens of daily pickups instead of one session.

Keep: your own words, 11 languages

Add unlimited custom vocabulary with translation, transcription and an example sentence across English, German, Spanish, French, Italian, Japanese, Korean, Polish, Portuguese, Russian and Chinese. Progress backs up to your private iCloud.

Drop: deck-building

1,080+ words across 18 topics are ready the moment you install. No card formatting, no shared-deck hunting, no import step before you can start learning.

Drop: the daily study session

There's no queue to clear and no streak to protect. Skip a day and nothing piles up — the next review simply arrives the next time you reach for a blocked app.

Spaced repetition,
in the flow of your day

Every attempt to open a blocked app becomes one scheduled review. No sit-down session ever gets planned.

A spaced-repetition vocabulary flashcard replacing a blocked app on iPhone Choosing which apps LearnScreen should block and draw reviews from Curated vocabulary decks available across 11 supported languages Progress screen showing words learned from passive spaced-repetition reviews

When to pick which

  • Choose Anki when you're a committed self-studier who wants total deck control and cross-platform sync for exam-grade cramming.
  • Choose LearnScreen when you keep meaning to study but never sit down to — and want your phone habit to do the reviewing for you.
  • Use both if you like: Anki for deliberate deep sessions, LearnScreen to keep words warm passively between them.

Anki alternative FAQ

What is a good Anki alternative that runs passively?
LearnScreen keeps Anki's spaced-repetition engine (the Leitner system) but removes the deck-building and the daily study session. Instead of opening an app to review, you see a scheduled flashcard the moment you reach for a distracting app you've chosen to block. The review comes to you — no habit to remember, no streak to protect.
How is LearnScreen different from Anki?
Anki is a manual review tool: you build or download decks and open the app to study on purpose. LearnScreen is passive: it ships with 1,080+ curated words across 11 languages, schedules them with the Leitner system, and surfaces each card inside your normal phone use. Anki is best once you've decided to study; LearnScreen is best when you haven't.
Does it use real spaced repetition?
Yes — the Leitner system, the same family of spaced-repetition scheduling Anki is built on. Words you answer incorrectly return sooner; correct ones back off along widening intervals. The difference is delivery: the interval is spread across the dozens of phone pickups you already make each day, not one sit-down session.
Can I add my own words like custom decks?
Yes. Alongside the 1,080+ built-in words you can add unlimited custom vocabulary in any of the 11 supported languages, each with a translation, transcription and example sentence. Your words and progress back up to your own private iCloud, so they survive a reinstall or a new device.
Is there an Android version?
Not currently. The passive shield uses Apple's FamilyControls / Screen Time API, which has no direct equivalent on Android. LearnScreen is iPhone-only today; Anki remains the better choice if you need cross-platform sync.

Keep the science,
drop the study session

Free to download. No account needed. 100% offline.

Download for iOS