Routejam is a free Android app that falls under the category of travel and navigation. Developed by Routejam, it provides users with real-time information about bus, minibus, light rail, and MTR arrival times and traffic updates. The app uses data analysis technology to interpret traffic news and locations to calculate the affected routes in seconds.

Routejam offers a straightforward and easy-to-use interface that automatically searches for bus, minibus, light rail, and MTR arrival times based on the user's current location. It also displays relevant traffic information. Users can add their favorite routes to receive notifications about any relevant traffic updates, allowing them to avoid affected routes.

This app has several features, including no ads, no registration required, real-time traffic updates via push notifications, and a cloud-based server for system stability and faster speed.