See the satellites above you. Measure the world around you.
Transform your device into a complete navigation and surveying instrument. Whether you're hiking, working on construction sites, or exploring the outdoors, this all-in-one tool provides everything you need. Plus, visualize live GPS satellites overhead with the built-in Satellite Sky Map – see exactly which satellites are in view, their signal strength, and which ones are actively fixing your position.
SATELLITE SKY MAP (NEW)
- Live GNSS satellite visualization (GPS/GLONASS/Galileo/BeiDou)
- Polar sky plot showing satellite position by elevation and azimuth
- Color-coded signal quality based on SNR (Signal-to-Noise Ratio):
Green: Excellent signal (>30)
Yellow: Good signal (>20)
Orange: Fair signal (>10)
Red: Weak signal (<10)
- Visual "In Use" indicator – white border around satellites currently used for fix
- PRN numbers for satellite identification
- Automatic rotation based on device orientation (compass integration)
- Elevation rings (30°, 60°) and cardinal direction markers (N, S, E, W)
- "No satellites available" message when no coverage
PROFESSIONAL COMPASS
- Real-time compass with precise azimuth readings
- Magnetic field monitoring (µT) with intelligent calibration alerts
- Visual calibration indicator when magnetic interference is detected
- Pitch and roll sensors for level measurements
- Clean, unobtrusive digital display
AREA MEASUREMENT
- Measure any surface directly on the map
- Add points by tapping on the screen
- Drag and drop markers for precise adjustments
- Real-time area calculation in square meters (m²)
- Visual polygon overlay with semi-transparent fill
- Perfect for land surveying, construction planning, or gardening
DISTANCE MEASUREMENT
- Calculate distances between multiple points
- Add as many waypoints as needed
- Editable markers with drag functionality
- Real-time total distance display
- Ideal for route planning, hiking trails, or property boundaries
GPS & LOCATION TOOLS
- Real-time GPS tracking with high accuracy
- Live address display based on current location
- Geographic coordinates in multiple formats
- DMS format (Degrees, Minutes, Seconds) with cardinal points
- One-tap map centering on your location
FLASHLIGHT WITH SOS MODE
- Instant LED flashlight activation
- Built-in SOS emergency signal mode
- Visual indicator for current flashlight state
- Accessible directly from the main interface
KEY FEATURES
- Intuitive Interface: Switch between compass, area, and distance modes with a single button
- Smart Calibration: Automatic magnetic field monitoring with visual alerts
- Editable Measurements: Drag markers to adjust points after placement
- Multi-touch Map: Zoom, pan, and navigate with ease
PERFECT FOR:
- Hikers & Campers: Navigation, satellite awareness, and emergency signaling
- Surveyors & Engineers: Quick field measurements with GNSS visibility info
- Real Estate Agents: Property area estimation
- Gardeners & Landscapers: Plot planning
- Outdoor Enthusiasts: Trail distance calculation and GPS performance monitoring
- Emergency Preparedness: SOS flashlight and location sharing
Latest Version
3.3Uploaded by
Bach Hồ
Requires Android
Android 5.0+
Category
Free Tools AppContent Rating
Everyone
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Flag as inappropriateLast updated on May 4, 2026
The functionality of GNSS satellite map with compass orientation was added.