GPS Speedometer is an app that measures the moving speed based on the mobile device's location.
The app is developed from the Ionic Framework - Angular and is released for free for Android devices at the present time (3rd Nov 2022) via GitHub.
Currently the app is under development and testing, so there may have some issues during use. Please give feedback to me if there are any issues while using GPS Speedometer. Your feedback is my motivation to move forward, thank you!