You can do this from inside the app under Settings → Delete account. If you have already uninstalled it, do it here instead — you do not need to reinstall anything.
What gets deleted
Your account and the identifier your sign-in provider gave us.
Your email address and display name, if we held them.
Every trip you synced.
Every visa you synced.
Your synced settings.
All refresh tokens, which signs you out everywhere.
It is a hard delete, immediate and irreversible. We keep no copy.
What stays, and for how long
On your own devices. Trips and visas stored locally stay on that phone. Delete the app to remove them.
Authentication audit entries — sign-in, sign-out and deletion events with an IP address and browser string — are kept for 90 days and then removed automatically. They exist to detect abuse of the sign-in endpoints. After the deletion, they no longer reference your account.
Subscriptions are not ours to cancel. Deleting your account does not cancel a Stamps Pro subscription. Cancel it in Google Play or, if you subscribed on an iPhone, in the App Store.
Delete it now
Sign in with the account you used in the app. Deletion happens straight away.