I used to use Viber on iPhone for a while with one set of Viber credentials.

Now I want to reinstall Viber on the same device "erasing its memory" completely: to use it with completely different identity (phone number, name, chat history) -- in a manner that Viber has no way of knowing that it was previously used with a different number on this device / for this Apple ID etc.

iOS 12.x throughout my Viber usage; currently 12.1.2.

Update (2019-02-07): Here what I tried so far, with no success:

  • Settings > General > iPhone Storage > Viber > Delete App (per 1)
  • Privacy > Advertising > Limit Ad Tracking; followed by > Reset Advertising Identifier
  • AppleID > iCloud > Viber > Off
  • disabling backups for Viber (per 2)
  • AppleID > iCloud > Manage Storage > Backups > (my phone) > Delete Backup
  • rebooting between the above cleanup steps and installing a new copy of Viber
  • completely signing out of AppleID, which includes removing all AppleID account-connected data including Keychain and disabling access to any backups
  • starting a newly installed Viber when the phone is in Airplane mode (per 3)
  • just log out in settings? – user310476 Jan 14 '19 at 13:12
  • @DaniilManokhin I couldn't find Log Out there. Even after cleaning up Viber data in iCloud backups and iCloud Drive, followed by reinstallation of Viber, it shows my previous number as a default login. – wass rubleff Jan 14 '19 at 14:19
  • Surprisingly, no entries containing Viber can be found in Keychain Access on my Mac using the same AppleID as my iPhone. – wass rubleff Jan 14 '19 at 16:11
  • try following this and seeing if it lets you create a new account – user310476 Jan 14 '19 at 16:23
  • @DaniilManokhin Following the "How to erase ... manually" section didn't help: my previous phone number is still displayed when I run Viber for a first time after reinstall. – wass rubleff Jan 14 '19 at 22:22

This can be fixed by Deactivating the account. Settings -> Account -> Deactivate account. Then type in your phone number and click deactivate. This will remove all data from the old account and allow you to setup as new.

| improve this answer | |
  • If Viber can connect number A to number B, then number B to number C, than it definitely can connect A to C--which is exactly what I want to avoid. – wass rubleff Feb 7 '19 at 18:39
  • @wassrubleff edits answer – user310476 Feb 7 '19 at 19:24

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