Support & Contact

Maintaining a secure service costs money every month: servers, call relays, SMS verification. Since we do not sell user data or show ads, we fund our operations with a yearly fee. This ensures that our customer is the user — not the advertiser.

You buy the app from the store for EUR 18.99, and that price includes your first year. After that you subscribe for EUR 18.99 a year: on Android at sulle.fi, on iPhone in the app through Apple. It renews automatically until you cancel. There are no monthly fees, and the app itself never charges anything.

Nothing is lost. Your messages are on your own phone, not with us. The app reminds you well before the year ends. If you do not renew, your account stops receiving new messages until you do; messages sent to you in the meantime wait on the server for at most 30 days. You can also delete the account at any time.

No. Messages are encrypted on your device and can only be decrypted on the recipient's device. We have no access to message content.

In the app, go to Profile and tap "Delete account". You can also do it on our website without the app. Your account becomes unreachable immediately, and after a 7-day window in which you can cancel, your data is erased. The account deletion page sets out both routes and exactly what is removed and what is kept.

Change it in the app: open Profile, tap your phone number and enter the new one, which is verified with an SMS code. Your account, chats, groups and backups stay as they are. If you cannot get into the app, contact our support by email.

First, try restarting the app. If the issue persists, make sure you are using the latest version. If that does not help either, contact our support and describe the problem in as much detail as possible.