This is an app that is somewhat sneaky to use. You can use WhatsDog to see when your contacts are using WhatsApp at any time of the day. The app lets you see the information about WhatsApp even if the person has chosen to keep their information from being seen by other people. You can easily see any phone number or the details of the contact, such as the time the person uses the app and the date.
When you use WhatsDog, you can see when the phone number is offline as well. It will give details on how long the person was using the app and how long it has been since the person has been online. You can see a graph of how many connections the person had while being online and the number of minutes the person was on WhatsApp. Turn notifications on and off. You can also get silent notifications. This is an app that is ideal for those who are trying to see if someone might be talking to other people without your knowledge.