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Keep the free essentials, or go all in: all 39 calculators, all 54 lessons, the full 660-question bank, all six simulations, and the CSV Data Lab.
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What stays free?
Every formula and glossary page, the descriptive-statistics calculators, the first learn module, the Sampling & CLT simulation, and a 60-question practice starter set are free forever — no account needed.
How is my access stored?
Purchases are handled by RevenueCat and Stripe. An anonymous purchase id is kept in this browser so StatRise recognises your Premium access on this device. Keep your receipt email for recovery.
Can I cancel?
Yes. Subscriptions renew automatically and can be cancelled anytime from the link in your receipt email. Lifetime is a one-time payment.