This is true not only for Viber, but also for WhatsApp and Facebook Messenger apps. You’ll have access to the exact date and time when every message was sent, the contacts list, and the files shared in a conversation even if they are deleted shortly after sending. The logs will be created and delivered to you even if the user chooses to erase the messaging history in Viber.

Nothing stops Viber Spy from working properly The Viber log created by Viber Spy free app is available for you to view and download any time in your online account at Hoverwatch.

In addition, it has been optimized to go easy on the device’s battery life, so the tracked user won’t experience any noticeable battery life decrease. The app is effectively hidden from the user, which makes it rather hard to discover (unless you know what you’re looking for). The answer is simple: it runs in the background, usually going unnoticed by the device’s user, and collects data from device’s Viber, WhatsApp, Facebook and Web browser.

Viber safety