Last Seen Tracker on WhatsApp is a utility application designed for iPhone users to monitor the online activities of their family members. The app provides real-time online and offline status updates, allowing parents to keep track of their children's online presence. Users can compare the online statuses of two children and view detailed session times to better understand their usage patterns.

The application offers a free version, which allows monitoring of one child's current status but does not provide in-depth statistics. For users seeking more comprehensive features, subscription options are available on a weekly or quarterly basis. The app adheres to privacy policies and terms of service, utilizing only publicly available data and ensuring compliance without affiliation to third parties.