GNSS Monitor was created to display your location and important GNSS information even without an internet connection – for example, on a plane, train, or boat, or when you are outside mobile network coverage.
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was created to display your location and important GNSS information even without an internet connection – for example, on a plane, train, or boat, or when you are outside mobile network coverage.
The app displays your current location, speed, altitude, visible and used satellites, GNSS accuracy, a spatial view of satellites, a 3D globe, a map, and other diagnostic information.
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Concept author: Jan Carbol
Technical development: Created in collaboration with OpenAI artificial intelligence
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- Support for multiple satellite systems:
- GPS
- Galileo
- GLONASS
- BeiDou
- QZSS
- NavIC
- SBAS
- Current speed and altitude
- Overview of visible and used satellites
- Graphical indication of FIX quality – green / yellow / red
- Position accuracy information
- Detailed GNSS diagnostics including C/N0, PDOP, HDOP, and VDOP
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- Graphical display of satellites above the user
- Compass mode, where the view is oriented according to the phone's direction
- 3D globe with smooth rotation and zoom
- Display of country borders and capital cities
- Display of the user's current position on the 3D globe
- Current position of the Sun
- Graphical display of the day and night sides of the Earth
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- Current location
- Route tracking including distance, time, and speed
- Export recorded routes to GPX
- Calculation of the great-circle distance between airports
- Offline airport database with country → airport selection
- European airports + major airports in Asia and Africa
- Display of the calculated flight route on a 3D globe
- Precise time – local time, UTC, and Nautical Time
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- Selectable units:
- Metric – km/h, km, m
- Imperial – mph, mi, ft
- Nautical – kn, NM, ft
- Selectable coordinate format:
- Decimal degrees
- Degrees/minutes/seconds (DMS)
- Degrees + decimal minutes
- Light and dark themes
- Multilingual interface: CZ, SK, EN, PL, DE, FR, ES, IT
- The app is designed so that its core GNSS features work even without an internet connection
1. Install GNSS Monitor on your Android phone – that's all.
The app is free and provided without warranty.
If you have any suggestions for improvements or feedback, please use the form below.
If you find the app useful, I would appreciate your contribution.