Stopwise support

Write to dovzhikova@gmail.com. You will get an answer within two working days.

What to include

Your account ID, at the bottom of Settings in the app.
What you did, what you expected, and what happened, with a screenshot if you can.
For a wrong address: the address as written on the label or list, and where it ended up.

To cancel, open your Apple account's subscription settings: Settings, your name, Subscriptions. Deleting the app or your Stopwise account does not cancel it.
For a refund, use reportaproblem.apple.com: Apple handles all payments.
On a new phone, sign in to the same Apple account and tap Restore purchases: your account and your delivery history come back.