地震预警-地震监测 is an iPhone app that provides users with a range of features related to earthquake monitoring and tools. With GPS compass map display, users can easily navigate and view their location on a map. The app also provides professional data such as altitude, orientation, air pressure, magnetic force, latitude, and longitude. Users can stay updated with real-time earthquake information from across the country.

In addition to the monitoring features, the app offers various tools to assist users. The star-finding guide helps users determine different directions and orientations. The app also includes a horizontal level for accurate measurements. The toolbox module provides unit conversions, latitude and longitude conversions, as well as additional functionalities like a mortgage calculator, provident fund calculator, QR code and barcode recognition, and QR code generation.

With its comprehensive set of features, 地震预警-地震监测 is a valuable tool for anyone interested in earthquake monitoring and related utilities. Please note that the app is free to download and use.