"Hi, I have deleted my Viber from iPhone 6 and when I installed it there weren't my messages. Can I restore my Viber chat history?"
As you know, Viber does not keep a copy of your chat history in the servers, and it does not offer an iPhone app to record or backup Viber calls, text messages and other data. So if you deleted or lost messages or other data from Viber without backup, you have to find a Viber data recovery tool to extract and recover all messages, photos, contacts, call history from iPhone.
It is very easy to find back all lost Viber conversations with iPhone Data Recovery, which is a professional and ultimate data recovery program to recover Viber data, including text messages, photos, contacts, call history, audios, videos and other media files. It works for iOS 9.3/9.2/9.1/9/iOS 8.x, iPhone SE/6s/6s Plus/6/6 Plus/5s/5c/5/4S/4.
iPhone Data Recovery offers 3 recovery modes to get back your lost Viber files, which are showed as below.
If you have no iPhone backup files for your Viber messages, "Recover Data from iOS Device" on iPhone Data Recovery will help you undelete all missing Viber contents.
It is wise to backup your iPhone data. You can also recover Viber messages and other data from iTunes backup if you have one. This Viber data restore process will not delete anything on your iPhone. And even though you have no iPhone at hand, you can easily get back data.
iPhone Data Recovery can help to regain all missing Viber messages, photos, contacts, call history and other data from iCloud backup. It will never keep a record of your iCloud account and never leak your private information. You will rescue your Viber files without other data loss.