DiaLog is an Android utility application designed for tracking the online status of phone numbers. This app allows users to monitor when a specified number comes online or goes offline, compiling this data into a clear timeline. Users receive instant notifications regarding any status changes, ensuring they are always updated. The application also features a detailed activity timeline, providing insights on daily, weekly, and monthly usage patterns, alongside a summary of late-night activity for enhanced monitoring.

In addition to its tracking capabilities, DiaLog supports multiple numbers on a single screen, offering a convenient multi-number panel. The app prioritizes user security with options for Face ID or Touch ID lock, ensuring that only authorized users can access the information. Notably, DiaLog respects user privacy by not accessing personal data such as messages, calls, or location, focusing solely on publicly available online status information.