Email supportsecondwind@gmail.com and a person will reply.
Subscriptions are handled by Apple, not by us, which means we cannot cancel or refund on your behalf. On your device open Settings → your name → Subscriptions. Refunds are requested through Apple at reportaproblem.apple.com.
In the app, open You → Delete my data. That removes your setup answers, history and streak from our records and erases the journal from your device. Because the journal is only ever stored on your phone, we cannot recover it afterwards — export it first if you want to keep it.
Open You → Restore purchases while signed in to the same Apple Account. Note that the journal does not transfer between devices, by design.
Your daily reminder is scheduled by your own phone at the time you picked. Change it in You → Daily time, or turn it off entirely in iOS Settings.
Tell us what happened, what device you are on, and roughly when — that is usually enough to find it. supportsecondwind@gmail.com