Stele is a training log made by one person. If something is wrong, write and you will get an answer from the person who wrote the code.
On your phone, and nowhere else. There is no account and no copy on our side. Deleting the app deletes it, so keep a backup: Export → Export backup (.json).
Export the JSON backup on the old phone, put the file somewhere you can reach it, then Export → Restore from backup on the new one. It restores programs, sessions, weigh-ins, recovery marks and settings. It works between an iPhone and an Android phone in either direction.
Nothing writes calories for you. They appear only if the app you log food in publishes them to Apple Health or Health Connect, and only if you have allowed this app to read them.
A sound plays only with the ring switch on; in silent mode the phone vibrates once and no app can change that. On iPhone, check the app is allowed in whichever Focus is running. On Android, check notifications are allowed.
In your Apple Account or Google Play settings, not in the app — that is where the store keeps it. Cancelling stops the services; nothing you logged is deleted or hidden, and every program you made stays.
Recovery is pulled when the app is opened, and only for days WHOOP has scored. If it stays empty, disconnect and connect again on the WHOOP screen — a sign-in can expire.
Anything not answered above, in English or Russian: support@getstele.app