Simple Pricing

The Free plan includes the full learning experience: 3 decks, 500 words, FSRS spaced repetition, daily study goals, push notifications, deck sharing, light & dark theme, PWA install, basic stats, and JSON import/export. The Pro plan removes capacity limits (unlimited decks and words) and adds full analytics with heatmap, FSRS card metrics, REST API access, and priority support. Pro is coming soon.

Your data stays safe — you just won't be able to add more decks or words until you upgrade or free up space by removing existing items.

You can upgrade to Pro anytime. If you downgrade, the change takes effect at the end of your current billing period.

All your data is kept. Free plan limits are re-applied, but nothing is deleted. You can always re-subscribe to regain full access.

A free trial will be available when the Pro plan launches. Stay tuned.

Deck sharing is available on both plans — you can share decks for read-only access. Shared decks don't count against your deck or word limits.

Yes. Full JSON export is available on both plans from the Decks page. Your data is never locked in.

Push notifications send you a daily reminder when you have cards due for review. It's a simple "You have X cards waiting" message — no marketing or promotional content. Available on both plans. Enable them in Settings.

Basic (Free plan): current streak, cards reviewed today, and retention percentage. Full (Pro plan): everything in basic, plus review heatmap, due forecast, leech detection, answer distribution, session history, study time tracking, and FSRS card metrics.