Inside Systems Pty Ltd

Providing elegant solutions to demanding and complex problems

RealTraffic – fly with live and real air traffic in your simulator

Live statistics: Total time flown by all users since January 2017: 29024.7 days ( = 79 years, 6 months, 7 days )

How does it work, and what does it do?

RealTraffic consolidates data from multiple international ADS-B and multilateration networks to obtain information about other airplanes near the position of your (simulated) aircraft – in realtime, live! Depending on which simulator you are flying, it then injects this traffic so you can fly with it, or follow it.

Supported Flight Simulators

Simulator Support
FSX/P3D/LiveTraffic Fully supported using the PSXT add-on, and via LiveTraffic (see X-Plane entry for details below).
Aerowinx PSX Fully supported natively. Allows injection of up to 7 aircraft (PSX limitation). Traffic is shown both in the windshield and the TCAS system.
X-Plane Supported via the LiveTraffic plugin. Check for information on how to install this with X-Plane. Or check their Forum link for LiveTraffic support.
Spotter Mode Manually select your position from the airport list or enter latitude/longitude manually. Don’t use this mode if you’re flying with a simulator, as obviously RealTraffic will not follow your position.

Service release 7.0.58 is now out:

  • Some minor internal optimisations and preparation work for the next major update.

In spotter mode, you can display air traffic in any area you manually enter – either by selecting an airport, or by manually entering the latitude/longitude of the point of interest. This will broadcast traffic on the network in the same way as if you were running a simulator. This allows you to view traffic in third party EFB apps such as Foreflight without the overhead of having to run the full flight simulator software.

If you want traffic to be available wherever your simulator is however, you should not use spotter mode, as traffic is only displayed in an approximately 100 NM radius around the current position.

Download links for version 7.0.58


  • Please download the software and test whether it does what you want it to prior to purchasing a license. During the demonstration time the software is fully functional! If it doesn’t work during the demo, it won’t work after purchasing a license!
  • If you want to use the RealTraffic software for more than 3 x 5 minutes every 24 hours, please purchase a license, or sign up for the free 24h license (link below)
  • You will instantly receive your license via email sent to the email address registered with PayPal! Almost all licenses are issued within less than a minute of PayPal accepting payment. If it’s not there, check your spam folder, the sender of the license email is
  • The license is issued and sent to your email address registered with PayPal. Make sure you can receive email on that address. Check your spam box.
  • If one hour after the order you have not received the license, please email with your PayPal receipt and we will work on issuing a license manually.
  • You are acquiring a time limited license to the software, NOT the traffic data! Traffic data is provided on a best effort basis and cannot be guaranteed to be up to date or available at all times!

Download for Windows (45MB) | Download Standalone for Windows (89MB) | Download for OS X (44MB) | Download Standalone for OS X (110MB) | Download for Linux (44MB)

12 month license (all platforms) USD $59.99

50% discount on monthly
6 month license (all platforms) USD $35.99

40% discount on monthly
3 month license (all platforms) USD $19.99

35% discount on monthly
1 month license (all platforms) USD $9.99

Free 24h trial license. Click here to generate a free trial license!You can create one 24h trial license every 90 days.

Current traffic status

The plot below updated every minute shows a red dot for every aircraft being tracked at 10’000ft or lower, and a blue dot for every aircraft higher than 10’000ft. The red dots overplot the blue dots, this is to show where there is lower flying traffic, and it also highlights to a lesser degree where the coverage could be improved. Click on the map for a larger resolution version.

And the combined coverage seen in the last 24 hours:

Information for developers

This brief PDF document explains how to interface RealTraffic so you can make use of traffic whichever way you would like to. Click here to download the document v.1.2.

Fault finding / debugging instructions

Firstly, please remember that RealTraffic only works natively with the PSX 747-400 flight simulator software. If you are using FSX or P3D, you are using Nico’s PSXseeconTraffic addon – and whatever problem you’re having most likely originates in that corner of the universe. Please check out his forum here if that’s the case:

If you still think there is a problem with RealTraffic and it doesn’t behave as expected, follow these few simple steps to help with debugging. RealTraffic has been shown to run on thousands of computer configurations without problems. It’s been tested on Windows 7/8/10, OS X, and Linux.

  • Remove any equipment from your network that might be trying to put itself inbetween your computer and the internet. This can result in security exceptions and the connection won’t succeed, preventing RealTraffic from running. There are for example free internet deals in the US where marketing firms will sniff your internet behaviour by injecting themselves between your computer and the servers you’re retrieving data from, in return for free internet. This won’t fly, literally, with RealTraffic.
  • To see whether the server RealTraffic needs to be able to access to run is reachable, try connecting your browser to the RealTraffic status image on the same computer as RealTraffic is running on. If you can’t connect, the problem is network related. Check your internet connection and your DNS settings.
  • If the problems still persist, try downloading the “standalone” version as it includes all of the required runtime libraries and will run independently of your locally installed Java Runtime Environment (JRE).
  • Finally, make sure you have all the software bits and bobs connected. RealTraffic is completely “add-on” agnostic – it doesn’t know whom it is talking to on the server port, whether that’s PSX, PSXSeeconTraffic, X-Plane, or another third party app. Make sure they are indeed providing the data RealTraffic needs to function.
  • If issues persist, start RealTraffic in debugging mode from the command line. This can help you locate problems with your installation. On Windows, simply open a terminal/console, change into the directory the software is located in, and run the following command java -jar RealTraffic.exe debug and watch the console for debugging output. if you’re running the standalone version, use this command: java -jar "RealTraffic Standalone.exe" debug. Make sure to include that output in any support email you might send.
  • And then, as a last step, if you’re really convinced you’ve found a new bug, please contact us via email: support at


In descent towards Paris, compare the RealTraffic screen on the right hand side with the TCAS display: at the 10’o’clock position, LDM25JV is visible, a 737-800 that’s approximately 300ft above us and in descent. EWG1182 at 1’o’clock is visible in the TCAS, as is HOP694X at about 3’o’clock.

Following are some more screenshots showing traffic as shown in RealTraffic and in the PSX cockpit. If you are seeing traffic in the RealTraffic application, but you can’t see the traffic in TCAS, make sure you have the display of traffic on your navigation display enabled by pressing the TFC button on the EFIS control panel.

Descending into Paris. The real world traffic is visible both in the TCAS as well as the RealTraffic radar display.

Descending into Paris. The real world traffic is visible both in the TCAS as well as the RealTraffic radar display.

Approaching Runway 28R at San Francisco Intl. The real world traffic is visible both in the TCAS as well as the visual view.

Approaching Runway 28R at San Francisco Intl. The real world traffic is visible both in the TCAS as well as the visual view.

Screen Shot 2015-01-24 at 15.01.09 Screen Shot 2015-01-24 at 15.01.05

Testing the system by climbing into the approaching Etihad 183 (a Boeing 777W). Watch the TCAS RA on the PFD/ND to the right.

RealTraffic_ETD183_conflict RealTraffic_PSX_ETD183_conflict

The traffic is also visible in the new Foreflight display:


Release history

– Better handling of connection and read timeouts when fetching traffic data.
– It’s now possible to ignore the AIRAC out of date messages when starting RealTraffic.
– Simulator settings changed to allow setting Ground/Air traffic for LiveTraffic.
– the “last position” timestamp is now available in the UDP data sent on port 49003
– Switching between spotter mode and flight simulator modes no longer requires restart of RealTraffic.
– A much improved radar display that can now be dragged with the mouse to view traffic further away from the current zoom level. In spotter mode, the new centre position is retained after releasing the mouse button.
– Information popup showing data about the clicked on traffic.
– Display and calculation of correct flight altitudes for flights that are below the transition altitude of the nearest airport.
– Removal of the injection logic, a very little used feature.
– Tracking of flights in spotter mode: Click “Follow this aircraft” in the info popup to center the radar display on this flight and follow it until it ends.
– Flights squawking an emergency transponder code (7700/7600/7500) are displayed in red.
– …and last but not least: Time offset/historical data is back!
– Multiple optimisations under the hood.
– Navigraph navigation database is now fully supported and integrated.
6.0.34 (Mandatory update)
– Fixed graphics bug causing high CPU usage when traffic window collapsed.
– Minor network glitch fixed.
– First release of v6. Now featuring navigation display.
– Improved traffic source failover handling
– Fixed a bug broadcasting the wrong hex ID’s of aircraft
– Windows executable and setup are now cryptographically signed.
– Added spotter mode: Allows operation without being connected to a flight simulator.
– Improved radar display now uses circles for aircraft targets.
– Displays the current simulator true track.
– Improved display of radar labels.
– fixed nearest weather display (was missing).
– removed time offset controls when feature is unavailable.
– feature improvement: X-Plane is now supported as a position source (traffic injection is NOT (yet) supported).
– feature improvement: More simulators will be supported soon. This requires modifications to the backend, which in turn requires changes to how the clients connect. A selection can now be made on which simulator is being used.
– bug fix: Foreflight connection is now more stable (no more jerking motions)
– feature improvement: historical flight data is now available for up to 7 days in the past.
– bug fix: makes callsigns/types in upper case.
– java update: JRE 1.8_161 is now the standalone JRE.
– bug fix: deals gracefully with corrupted ini files.
– bug fix: fixed a null pointer exception when a QNH or air traffic queries timed out.
– bug fix: renewed licenses can now be entered directly when starting the software with an expired license.
– improvement: better debug information is now available when running in debug mode.
– stability improvements.
– improved license error handling.
– stability improvements.
– added console debugging output.
– allows zooming into the radar map to 0.25 NM diameter.
– fixed internal UDP socket bindings so third party apps can bind onto the same ports and network interfaces without blocking each other.

– automatically establishes connection to the PSX server
– cooperates with Nico Kaan’s PSXseeconTraffic to bring RealTraffic into FSX/P3D world
– fixed network latency issue.
– updated network traffic format.
– added ability to disable PSX traffic injection.

– a minor bug was corrected.
– the windows program and setup executables are now cryptographically signed.
– Make the individual sections collapsible.
– Always persist settings on exit.
– Fixes flipping traffic in PSX: Traffic now no longer makes sudden jerky motions in PSX.
– Provides platform specific user interfaces including installers for Windows and OSX.
– 10 minute time limit on the free demo.
– AIR/GND traffic or automatic traffic selection is now possible.
– Disable connection failure dialog box on autostarted reconnect. Now only displays when manually connecting.
– Obtain correct broadcast address for currently selected IPv4 interface
– Automatically reconnects if PSX disconnects, the network connection drops, or PSX is restarted.
– Displays ground traffic as well
– First public non-beta release.