Support Viber v4.2.1
Support iOS6.x.x - iOS7.x.x
Try VBEnhancerLite limited trial.
Viber one of the most popular chatting applications specially for social voice community. but it doesn't have some useful features in iOS version. like chatting while you voice call someone, etc like android version.
So with this tweak is unrestricted some features in iOS version.
1 - Hide Calls ( Chat while you talk )
2 - Read Mark ( Don't send seen notification while you read messages )
3 - 24H restriction ( Unrestricted switching your online status every 24H )
4 - Sticker Badges ( Remove stickers badge inside application settings )
5 - Vibration ( Disable vibration inside app )
6 - Sound ( Disable sound inside app )
7 - Vibration ( Disable location inside app )
8 - Share Style ( Send animation videos like android version )
9 - Font Size ( Change application font )
10 - Keyboard Customization ( have now 4 or 5 keyboard type )
11 - Hide StatusBar ( Hide StatusBar to get full screen mode )
12 - Disable Rotate ( Disable rotate even if device rotate enabled )
13 - Unlimited Media ( Send More Than 10 Media at once )
( and more coming soon ) any suggest -> Email me through cydia ;)
Configuration under Settings.app