Kalimo
One address for problems, suggestions and data requests: ertaneker@gmail.com. Usually answered the same day.
No. Nothing is taken when the trial begins. The first charge is at the end of day 7. Cancel from your store account before that date and you pay nothing.
Android: Google Play → profile → Payments and subscriptions → Subscriptions → Kalimo. iPhone: Settings → Apple Account → Subscriptions → Kalimo.
Press "I have a subscription" on the paywall; the app asks the store again. If it persists, make sure the store account on the phone is the account you bought the subscription with.
Check that the microphone permission is granted and that you have a connection. Pronunciation scoring does not work offline; the rest of the lesson does.
Sign in with the same Google/Apple account: the progress comes back from the cloud. If the app was used without signing in, the progress stays on the old phone only.
German, A1 to C2, explained in English. The other courses are being written; a course is offered only once every line of it is ready in the language the app explains things in.
See the account deletion page.