GPS Convert is a free iPhone app designed to assist users in converting GPS coordinates between different coordinate systems. Whether you're working with WGS84, VN2000, or other coordinate systems, this app provides a convenient solution for converting and saving locations on a map.

With GPS Convert, you can easily find a location on the map using the desired coordinate system and save it for future reference. The app offers seamless synchronization between the geographic and map grid coordinates. If you modify one end of the data, whether it's the geographic or map grid coordinates, the other end will be automatically updated, including the annotation on the map.

One of the standout features of GPS Convert is its ability to display brief information about any annotation on the map. By simply tapping on an annotation, the app will convert the latitude and longitude using the proj4 algorithm and provide you with concise information about that location.

GPS Convert is a user-friendly app that simplifies the process of GPS coordinate conversion. If you find this app useful, please consider rating it on the App Store. Your feedback and support are greatly appreciated.