AddSpy is a special Viber tracking spy application that allows users to track messages and calls (both received and sent). If you really want to view activity in Viber, Facebook and WhatsApp, you can do it using the AddSpy Phone Monitoring Mobile Software. The clever software saves all SMS and calls. It can take screenshots and photos. Using it, you’ll be able to track web history and geo-position.

How To Monitor and track Viber Chats || Spy Viber Messages and Calls