How do I cancel my subscription?

Cancelling does NOT happen inside Prix Futé: your subscription is billed by the App Store or the Google Play Store, and that is where it is managed.

On iPhone: Settings → your name → Subscriptions → Prix Futé → Cancel. On Android: Play Store → your profile → Payments and subscriptions → Subscriptions → Prix Futé → Cancel.

You keep access to the paid features until the end of the period you already paid for.