SAT · ACT · GRE · GMAT · TOEFL · IELTS
Smart spaced-repetition flashcards designed for serious test prep. Built around FSRS, the same algorithm that powers Anki — so you study less and remember more.
Download on the App StoreFeatures
Lafz isn't a list of words you forget by Thursday. It's a daily ritual built on real learning science.
The latest open-source memory algorithm decides exactly when each word is due for review.
Build a daily habit. Miss a day? Lafz spends one freeze per week to keep your streak alive.
SAT, ACT, GRE, GMAT, TOEFL, and IELTS — all six exams live, one engine, one streak.
Look up a word, definition, or synonym instantly. Jump to its card from anywhere in the app.
Tap the speaker to hear every word. Toggle off any time from Settings.
Streak, mastery, and review schedule sync across iPhone and iPad automatically.
All-time mastery, weekly mastery, and current streak. Compete with friends & family.
Match a friend or a random opponent over Game Center. Five questions, one winner.
See today's word, due count, and streak without unlocking your phone.
How it works
Choose SAT or ACT today. Switch any time — your progress carries with you.
Two-button reviews: "Got it" or "Again". The algorithm schedules everything else.
Hit a streak, climb the leaderboard, and master every word in your pack.
Pricing
Letters A–C are free forever. Premium unlocks the full pack, removes ads, and turns on smart spaced repetition.
Prefer to pay per test? Each pack is available individually: SAT & ACT $4.99 · TOEFL & IELTS $6.99 · GRE & GMAT $9.99.
Tests
FAQ
Free Spaced Repetition Scheduler — an open-source memory algorithm developed by the Anki research community. It models your individual forgetting curve and schedules reviews at the moment retention is most efficient.
Yes. All vocabulary is bundled with the app. Only notifications and iCloud sync require a connection.
You get one freeze per ISO week, automatically. If you miss a day, Lafz spends the freeze and your streak survives. If you have zero freezes and miss a day, the streak resets.
Progress data syncs through Apple's iCloud Key-Value Store using your Apple ID. Lafz does not run a backend or store personal data outside Apple's ecosystem. See the privacy policy for details.
iOS Settings → tap your name → Subscriptions → Lafz → Cancel. Apple processes the cancellation; Lafz never sees your billing details.
The Lifetime plan ($49.99) is Family-Shareable. Up to five family members get full access. Monthly and annual subscriptions are per-Apple-ID.
Vocabulary is curated from publicly-available high-frequency test lists. Lafz is an independent study tool. We are not affiliated with, endorsed by, or sponsored by the College Board, ACT, Inc., Educational Testing Service (ETS), the Graduate Management Admission Council (GMAC), the British Council, IDP: IELTS Australia, or Cambridge English. See the trademark notice in the footer for full attribution.