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Master 15 million+ flashcards for the price of a coffee.

Free forever — no card required. Upgrade only when you want unlimited study, AI tutor, or family access.

Free

$6.00/ mo

or $45.00 / yr (save $27.00)

$14.99/ mo

or $79.99 / yr (save $99.89)

First 5,000 only

$75one-time — yours forever

5,000 of 5,000 founding spots left

Everything in Plus, for life. No subscription, no renewal, ever. Reserved for the first 5,000founding members — when they're gone, they're gone.

Can I cancel anytime?: Yes. Cancel from Settings → Subscription. You keep access until the period ends.
Is there a student discount?: Yes. Verify with SheerID and get 15% off Plus or Pro.
Is there a family plan?: Pro includes up to 4 family members with independent progress.
What about schools?: Koydo for Schools starts at $4/seat/yr with seat-level admin and SSO. Contact sales.
Does Free expire?: No. Free is permanent. The 100-card daily limit resets at midnight local time.
What languages are supported?: App UI in 30+ languages. Card content in 14+ languages depending on the deck.

Subscriptions auto-renew. Cancel anytime. Pricing in USD. Local currency applied at checkout via Stripe Tax.