Founder offer — the first 100 users get lifetime access for $29, then the price goes up. See pricing

Founder offer · First 100 users

Remember every word you learn

Spaced repetition shows each card at the exact moment you're about to forget it. A few focused minutes a day beats hours of cramming — and with five visible boxes, you can see exactly how it works.

  • Free forever plan
  • $29 once — no subscription
  • 30-day money-back guarantee
Live demo — tap an answer Box 1 of 5

spaced repetition you can actually see — this is the real study mechanic

Fifty years of memory science, five simple boxes

In 1972, Sebastian Leitner turned proven memory research into the simplest spaced-repetition system ever designed. We put it in your pocket — unchanged and un-hidden.

The forgetting curve, sketched
memory days reviews with spaced review cramming

Review just before you forget, and the curve resets — flatter every time.

~70%
Forgotten within days
Ebbinghaus forgetting curve, 1885 — without review, most new words fade
1972
The Leitner system published
Sebastian Leitner, “So lernt man lernen” — still the most-taught memory method
2006
Recall beats re-reading
Roediger and Karpicke — every card is a retrieval attempt, not a re-read

Reviewing just before you forget resets the curve — spacing puts your minutes only on the words that are slipping.

Five boxes. Five minutes a day.

The whole system fits in one sentence — and on one screen.

1
Every card starts in Box 1
Add your own words or clone a starter deck.
2
Right answer? It climbs
Tap the correct meaning — it flashes green instantly.
3
Miss? Back to Box 1
No shame — that's the system doing its job.
4
Box 5 means it's yours
Higher boxes come back less often — mastered words rest.

You pick which box to study. Sessions are one pass and actually end — built for the bus stop, not the library.

Everything you need to make words stick

Five boxes, zero mystery

The Leitner system — the original spaced repetition — laid out where you can see it. Right climbs, wrong resets.

Sessions that end

Pick a box, tap through it once, done. No endless review queue guilt-tripping you at midnight.

Tap, don't type

Multiple-choice answers with instant feedback — the correct answer flashes green the moment you miss.

Free means free

Reviewing your cards will never be paywalled. Ever. Studying is free forever, on every plan.

Pay once, own it

$29 lifetime, and that's it. Compare: about $5/month, forever, elsewhere.

Your data is yours

One-click CSV export on every plan. Migrate from Anki or Quizlet in minutes — no deck held hostage.

Flashcards without the algorithm — or the subscription

Why learners switch from Anki and Quizlet.

Other flashcard appsFiveboxes
Black-box scheduling that punishes missed days
Five visible boxes — you always know why a card appears
Steep learning curve, desktop-era UI
Feels like a mobile app the second you open it — nothing to install
$36–60/year subscriptions, forever
$29 once, yours for life
Reviews locked behind paywalls
Studying is free forever — no review is ever blocked
Endless review queues
One-pass sessions that actually end
Your decks held hostage
Free CSV export for everyone; import from Anki or Quizlet in minutes
Guilt mechanics
Streaks and a 30-day heatmap that celebrate showing up

Recognition gets you moving, recall makes it stick, spacing saves your time. Start free

Honest pricing: free forever, or pay once

No subscriptions, no paywalled reviews, no hostage data.

Free

$0 forever
  • Unlimited studying, forever — no review is ever blocked
  • 3 decks and 100 cards
  • 1 curated starter deck
  • Streaks and a 30-day activity heatmap
  • One-click CSV export — your data is always yours

Lifetime

Founder offer — first 100 users
$29 once, yours for life

Early-bird discount for the first 100 users — the price goes up when the founder spots are gone. Compare: about $5/month, forever, elsewhere.

  • Everything in Free
  • Unlimited decks and cards
  • All curated starter decks
  • CSV import — migrate from Anki or Quizlet in minutes
  • Full statistics history
  • All future premium features included
Start free — upgrade any time 30-day money-back guarantee

Questions, answered honestly

Is the free plan really free forever?

Yes. Reviewing your cards will never be paywalled — the free plan includes unlimited studying with up to 3 decks and 100 cards. The one-time Lifetime upgrade only unlocks higher limits and extras like CSV import and full statistics history.

How does the first-100 discount work?

The $29 lifetime price is a founder discount reserved for our first 100 users. Once those spots are gone, the price goes up — but if you lock it in early, you keep it forever.

What happens if I skip a few days?

Nothing scary. Unlike algorithmic apps that bury you in a 400-card backlog, your boxes simply wait where you left them. Pick a box, do one pass, done — the whole system is visible, so you stay in control.

How is this different from Anki or Quizlet?

Anki's algorithm is powerful but opaque, and Quizlet locks reviews behind a subscription. We use the original Leitner method: five boxes you can see, sessions that end, and a single $29 payment instead of rent.

Can I bring my existing decks?

Yes — Lifetime includes CSV import, so you can migrate from Anki or Quizlet in minutes. And CSV export is free for everyone, so your data is never held hostage.

Why five boxes instead of a smart algorithm?

Because control beats mystery for habit-building. You always know why a card appears and what progress looks like — cards climbing boxes. It has been the most-taught memory method on earth for fifty years.

What if I buy Lifetime and change my mind?

There's a 30-day money-back guarantee. Ask for a refund within 30 days and you get your money back, no questions asked.

Your first box is waiting

Add 10 words you keep forgetting — or clone a starter deck — and do one 3-minute session today. That's the whole habit.

Free forever plan · First 100 users get lifetime for $29