Dashy (GPS Speedometer)

This app gives you a clear, distraction-free view of your current speed so you can stay focused on the road.
It shows your current speed using the device’s GPS/GNSS data and can optionally display the road name and speed limit. The interface is designed for fullscreen landscape use with a black background and large, easy-to-read text. The Wakelock API is supported to keep the screen active during use.

Road name and speed limit data is sourced from OpenStreetMap, which provides worldwide coverage. In practice, the accuracy depends on the availability and quality of data for each specific road. The feature has been tested primarily in Denmark and Sweden, and speed limit results may vary in regions where this information is incomplete or missing.

The app also supports optional local logging of GPS/GNSS data in JSON format. This feature is intended for developers and technically inclined users who want deeper insight into their drive data or wish to use it for custom applications, such as generating overlays or subtitles for in-car video recordings.

The app respects your privacy. It includes no analytics, no tracking, no metrics.
The app is free, and there are no plans to introduce ads, any of the above or anything similar. It was originally built for personal use, and it’s offered publicly in case others find it helpful as well.

• Current speed in km/h or mph
• Optional road name and road speed limit
• Minimal, fullscreen landscape interface
• Optional local JSON logging of GPS/GNSS data
• Uses OpenStreetMap for road information
• Works offline (speed only)
• Settings page accessible via right-to-left swipe gesture



Technical details:
To display road names and speed limits, the app sends a request to a backend API, which looks up the relevant data based on the device’s GPS/GNSS coordinates. The coordinates themselves are never logged — only the number of requests is recorded so server load can be managed when needed.

Road data retrieval can be disabled in the app’s settings. The settings page is accessible with a right-to-left swipe gesture.

Data usage is minimal. Typical request and response sizes range from 200 to 700 bytes, which comes out to roughly 6 MB over two hours of continuous use.