I am Using Viber from last year this is great massanger App for android.Popular instant messaging app Viber App for the Android and iOS is a great updated. Under the updates sent messages will be deleted as well as new features are added.
Android and iOS Viber v5.6.5 version of the conversation now all those associated with the user to delete the messages will still be sent. This process is very simple. Android users want to delete the text, select it and press a little while and then opt. There is no time limit for the message to delete the app can be downloaded from the Google Play Store.