CompoCam: Compass Camera & Map

CompoCam is a camera with a live compass on top, and a map beside it. Every photo shows which way you were looking, how the phone was tilted and where you stood. The map shows what the camera sees, what ground is visible from your spot, and whether you have a clear line to a mast or a peak.

COMPASS CAMERA
• Live bearing, tilt and GPS coordinates over the camera picture, saved into the photo
• Hold it any way: upright or sideways, the reading stays correct
• Lay the phone flat for a classic compass; lift it and the camera comes back
• Pinch to zoom, tap to focus, long-press anywhere to take a photo, or use the timer

CAMERA AND MAP SIDE BY SIDE
• A funnel on the map shows exactly what the camera sees, and narrows as you zoom
• Tap the map to set a target: see its distance and bearing, and an arrow in the camera shows where it is
• Heading-up or north-up, map or satellite, range from 500 m to 20 km

VISIBLE GROUND (VIEWSHED)
• Shades the ground you can see from where you stand, using terrain data and OpenStreetMap buildings
• Set your height and the target height, for example a 10 m mast
• Terrain is downloaded once per area and works offline afterwards

LINK PROFILE
• The terrain between you and the target, with the line of sight and the Fresnel zone
• Clear, partly blocked or blocked, for frequencies from 433 MHz to 80 GHz
• Made for radio links, Wi-Fi bridges, antenna planning and ham radio

MEASURE A HEIGHT
• Tap the base and the top of a building, tree or tower to get its height
• The distance comes from your map target, or type it in

MADE FOR THE FIELD
• Surveys and inspections, telecom and antenna work, construction and real-estate sites, hiking and geology
• RF guide with horizon, antenna line and beam angles for photographing antenna directions
• Light dial and any overlay colour, so the overlay doesn't hide the picture
• Every photo is logged with time, position, bearing and tilt
• Other apps can use CompoCam as their camera

FREE AND PRO
CompoCam is free. Visible ground, link profile and height measurement unlock together for 60 minutes after one short video ad, only when you choose to watch it. In the free version, visible ground reaches 5 km and photos are up to 2 MP with a small CompoCam mark.

CompoCam Pro is a one-time purchase, with no subscription:
• No ads, and all tools always on
• Visible ground up to 50 km
• Full camera resolution, without the mark
• All compass skins, night mode, colour presets and recent colours
• GPS, bearing and tilt in the photo details (EXIF)
• A note or project name stamped on photos, and a clean copy without the overlay
• Photo log export as CSV, KML (Google Earth) or GPX

PRIVATE
No account needed. Your photos, location and photo log stay on your phone.

Your phone needs a magnetic sensor (magnetometer) for the compass. Accuracy depends on your phone's sensors; calibrate by moving the phone in a figure eight. Terrain data is accurate to about 5–10 m and does not include trees.

Available in English, German, Spanish, French, Romanian, Russian, Ukrainian and Turkish.

Recent changes:
CompoCam 2.0
• Camera and map side by side: see what the camera sees, set a target with distance and bearing
• Visible ground (viewshed) from terrain and buildings
• Link profile with Fresnel zone, 433 MHz – 80 GHz
• Measure the height of buildings, trees and towers
• Overlay shadow and any colour for clearer readings
• The bearing stays right however you hold the phone
• Built-in manual in 8 languages
• Free: the tools unlock for 60 minutes with one short ad. Pro: no ads