Supported ADS-B receivers

iFly EFB works with almost every portable and panel-mounted ADS-B In receiver on the market. The few it cannot use are locked to a competitor's app by their manufacturer. Here is what to look for, what we recommend, and what to avoid.

What iFly needs from a receiver

ADS-B In. iFly reads traffic and weather that a receiver picks up. An ADS-B Out transponder by itself sends nothing to a tablet; combination In/Out units such as the uAvionix echoUAT do work.
An open data format. Nearly every receiver broadcasts the standard GDL90 format over Wi-Fi or Bluetooth, which is what iFly listens for. iFly auto-detects these.
Wi-Fi or Bluetooth. Wi-Fi receivers create their own network that you join from the tablet's settings. Bluetooth receivers pair in the tablet's Bluetooth settings.

Recommended receivers

Receiver	Provides	Notes
Stratus 4 (Appareo)	Traffic, weather, GPS, AHRS	Current model. Has its own status display. See Connect a Stratus to iFly.
Stratus 3 (Appareo)	Traffic, weather, GPS, AHRS	Discontinued but widely available used. Needs Open ADS-B Mode turned on once.
FlightBox v3 (Falken Avionics)	Traffic, weather, GPS, AHRS	Small and inexpensive.
Stratux	Traffic, weather, GPS, AHRS (varies by build)	Cheapest option, home-built or pre-built. Less reliable; the AHRS needs a GPS lock. See Connect a Stratux.
uAvionix SkySensor	Traffic, weather	Certified, mounts on the wing tip.
Levil Astro+	Traffic, weather, GPS, AHRS	Most common Levil unit.
Levil iLevil AP	As Astro+, plus serial out	Can drive an autopilot. The companion Levil autopilot app is iOS only.
Levil iLevil AW	As Astro+, plus pitot-static
Levil BOM	Traffic, weather, AHRS, pitot-static, AoA	Wing-mounted, self-charging.

Also supported

Appareo Stratus 1, 3, 4 and ESGi · Stratux and FlightBox (all makes) · uAvionix echoUAT, pingUSB and SkySensor · Dynon SkyView and Dynon ADS-B In · Avidyne IFD · L3 Lynx NGT-9000 · Dual XGPS170 and XGPS190 · Clarity · SkyRadar · SkyGuard · FreeFlight ADS-B In/Out.

If your receiver is not listed but broadcasts GDL90 over Wi-Fi or Bluetooth, it will almost certainly work. Leave iFly's ADS-B Setup on Auto Detect and it should appear within a minute.

Not compatible

Garmin (GDL 50/52 and others)	Garmin receivers only talk to Garmin Pilot.
Stratus 2	Made ForeFlight-exclusive. The Stratus 1, 3 and 4 are fine.

Receiver features to check before you buy

Both bands. Traffic (978 and 1090 MHz) and weather (978 MHz) are separate systems. Some receivers, notably the uAvionix pingUSB, do traffic only.
GPS. A receiver with GPS gives iFly a position even on a Wi-Fi-only iPad, which has no GPS of its own.
AHRS. Needed for the attitude display and Synthetic Vision.
Power. Battery units switch off after a period of inactivity; hard-wired units do not, but depend on ship's power.

Only one app at a time

A receiver sends one data stream. If ForeFlight or another EFB is connected to it, iFly gets nothing. Close the other app, then in iFly choose Menu › Setup › ADS-B › Options › Reset / Reconnect.