The subscription management is intimidating to new users. Implement the following features to give better transparency to users what is going to happen:
on first call on a device, check for existing subscriptions, and if there are none, show a full screen tips overlay introducing the subscription features
provide subscription management functions, preferably issuing a link to the Google Play store
show subscription status, current validity period, and if it is going to extend or expire
Mostly implemented. Information if a subscription is going to extend or expire is not currently available at the client - it only checks if there is a subscription and how long it is guaranteed to last.
The subscription management is intimidating to new users. Implement the following features to give better transparency to users what is going to happen: