Is TonePerfect free?
Partly. The pronunciation tests on toneperfect.app are free and need no account, and the app has a free tier with daily limits; Premium is a paid subscription.
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In the browser there is a free test for each of the 8 languages, plus the Mandarin pronunciation checker and tones test. They work in a phone or desktop browser, and each item can be recorded a few times a day.
The app (iOS, Android and web) has a free tier with at least one guided practice session each day. Premium adds unlimited practice sessions, spaced-repetition reviews, practice on any text you type and detailed progress analytics.
Premium is a monthly or annual subscription, with a one-time lifetime purchase where it is offered for your payment method. Prices differ by country, by store and between app-store and web checkout; your exact price and any trial are shown before you pay.
Subscriptions renew until cancelled. Cancel in the store where you subscribed, or in the web subscription controls if you paid on the web; access continues to the end of the paid period.