AeroRadar
Air traffic observation radar
Free
The sky around you, live: ADS-B traffic from adsb.fi and adsb.lol, gliders from the Open Glider Network, and traffic output to your navigation app.
AeroRadar is an observation radar for the air traffic around you, on the ground or in the air: ADS-B aircraft from the adsb.fi and adsb.lol community networks, FLARM gliders from the Open Glider Network, on a radar dial or on a map. It is not an aviation safety tool, and never an anti-collision system.
THE SKY AROUND YOU
• Live ADS-B traffic from adsb.fi and adsb.lol, queried together so their coverage adds up, a new picture at most every 5 seconds.
• Ranges of 10, 25, 50 and 100 km on the dial, 250 km on the map, in kilometers or nautical miles.
• Tap an aircraft for its registration, type, altitude, speed, heading and distance. Altitudes in meters then feet (3,353 m · 11,000 ft), speeds in km/h or knots.
• Altitude filter: an adjustable ceiling from 500 to 30,000 ft, or none, and aircraft on the ground shown or hidden.
• When a network call fails, the aircraft on screen stay, with the age of their data.
DIAL AND MAP
• A radar dial that puts you at the center, with four range rings, north-up or in Compass mode.
• A map that puts the same traffic back on the terrain, with dashed heading vectors and labels.
• Dark by default, light if you prefer. iPhone and iPad, portrait or landscape.
• Energy saver refreshes every 10 seconds instead of 5: half the network wake-ups, and the radar stays active.
TRAFFIC SOURCES
• FLARM traffic (gliders, tow planes, hang gliders, paragliders) from the volunteer Open Glider Network, with distinct icons and GPS altitudes; an aircraft seen by both networks appears once.
• Pilots who opted out of OGN tracking are never shown.
• Each source has its colour: ADS-B, FLARM and radio beacons, pilots’ apps, computed MLAT positions.
• FLARM, Apps and MLAT switch off one by one in Preferences. With FLARM and Apps off, the connection to the Open Glider Network closes.
TRAFFIC OUTPUT
• AeroRadar feeds the navigation app running on this same device as a FLARM-NMEA receiver on TCP port 2000 (host 127.0.0.1): nothing leaves the device. For any app that accepts a FLARM or NMEA source at an address of your choice.
• Up to 32 targets per burst, closest first, never a position older than 30 seconds; the stream carries the traffic plus your own position.
• While output is on, AeroRadar feeds your navigation app from the background and follows your aircraft, blue location indicator visible; with another app in front, the radar refreshes every 10 seconds.
PRIVACY
• No account, no ads, no analytics, no trackers, no third-party SDK, no in-app purchases.
• Your approximate position, rounded to about 1 km, goes to adsb.fi, adsb.lol and, while the FLARM source or the Apps source is on, to the Open Glider Network, for one purpose only: selecting the traffic around you. Nothing identifies you or your device; the OGN login line names the app, the same for everyone.
• Airline routes and some registrations come from adsbdb.com, asked by the aircraft’s callsign or address.
• Receive-only by design: your position, or your aircraft’s, is never broadcast as a beacon visible to others.
• Preferences stay on the device, and disappear with the app.
• Data from adsb.fi, adsb.lol (ODbL license) and the Open Glider Network, for personal, non-commercial use.
LIMITS
• Community traffic from the internet: accuracy, completeness and continuity are not guaranteed.
• An aircraft can be missing: out of receiver range, without a transponder, with ADS-B switched off, or hidden by your own filters. Low-flying helicopters are the hardest to hear.
• ADS-B altitudes are pressure altitudes referenced to 1013.25 hPa, those of flight levels, not QNH-corrected altitudes.
• Never use it to navigate, separate or avoid traffic, and never in IMC.
• Your duty to “see and avoid” remains yours alone: stay vigilant at all times. Vigilance in flight remains the sole responsibility of the pilot in command.
• The disclaimer is shown at every launch, and must be accepted every time.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Valerie Otero, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Valerie Otero
- Size
- 4.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.2 or later.
- iPhone
Requires iOS 26.2 or later. - iPad
Requires iPadOS 26.2 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English and French
- Age Rating
4+
- 4+
- Copyright
- © Valérie Otero
