WhatsDog Premium is an Android application designed for users who wish to monitor when their contacts are online on WhatsApp, even if those contacts have set their privacy settings to hide this information. The app requires only a phone number to track, eliminating the need for WhatsApp installation or saved contacts. Users can access detailed statistics regarding the online activity of tracked numbers, providing insights into their connection times over various periods, including the past 24 hours, week, or month.

This application generates a calendar that displays the complete history of a contact's online status, showing how many times the individual has logged on and the duration of each session. Additionally, WhatsDog Premium offers notification features that alert users in real-time when a specified number comes online. This functionality makes it a useful tool for those interested in monitoring WhatsApp activity discreetly.