Help and support

Check that your number and country code are correct and that your phone can receive SMS. Wait 60 seconds before asking for a new code. For security, you can request only a few codes per hour and per day. If you hit the limit, the app shows when you can try again.

On the PIN screen, tap Forgot PIN. For your safety, you can log in without the PIN after 7 days. If you remember the PIN before then, you can use it as usual.

Use Forgot PIN on the chat lock screen. We send a code to your phone number, and you can set a new PIN.

Go to Settings, Account, Change number. Verify your new number, and your chats, groups and settings move with you. You can choose to let your contacts know.

Log in to ATTFI on a new phone with the same number. Then go to Settings, Devices and log out the old phone. If you can't access your number, contact your mobile carrier to block the SIM and email us.

• Allow notifications for ATTFI in your phone settings.
• Check Settings, Notifications in the app, and that the chat is not muted.
• Turn off battery saver or "restrict background activity" for ATTFI.

Calls need a stable internet connection. Try switching between Wi-Fi and mobile data, and allow microphone and camera access for ATTFI. If calls from unknown numbers don't ring, check Settings, Privacy, Silence unknown callers.

For a full backup, go to Settings, Chats, Back up now. You can also schedule daily, weekly or monthly backups and choose whether to include videos. To export one chat, open the chat menu and choose Export chat. Export links stay available for 7 days.

Open the chat or their profile and tap Block or Report. Blocked people can't message or call you or see your profile details. You can manage blocked contacts in Settings, Privacy, Blocked contacts.

Go to Settings, Account, Request account info. The report is ready right away and stays available to download for 30 days.

In the app, go to Settings, Account, Delete my account. You can also delete your account on our website.