Connect your Bluetooth-enabled Featherweight Altimeters products to your phone. View live sensor data, configure settings, download flight information, and track your rocket's position and velocity with a live map.
1.1.8
September 17, 2026
New in this version: -New Swift firmware -Improved ground station clock calibration for more reliable LoRa comm -Identification of corrupted recorded packets -Improved launch detection avoids false flight recording -Flight state telemetry provided to phone app -Added serial telemetry for display of GPS information for scanned trackers (for Launch Sentinel) -Auto-recovery for LoRa comm loss -Improved and more reliable data downloading -Corrected download in the event of a flash data corruption -Monitor mode for watching another rocket's tracker discovered through the channel list search -Added flight state display so that you can verify the Swift is in prelaunch mode before launch
MoreFeatherweight UI is compatible with iPhone, iPad, and iPod devices. It connects to any Bluetooth-enabled Featherweight Altimeters products, including the Blue Raven flight computer and Featherweight GPS tracker.
The app provides live tracking of your rocket's position and velocity via the Featherweight GPS tracker. Its live map feature plots both the ground station and tracker locations, aiding in recovery planning.
Yes, Featherweight UI allows you to download and review recorded flight data from your Featherweight Altimeters products. This enables detailed analysis of your flight performance.
Featherweight UI is available for free. There are no costs associated with downloading or using the application.
Featherweight UI has an age rating of 4+. This indicates it is suitable for a wide range of users.
The latest version of Featherweight UI is 1.0.25, last updated on January 13, 2026. While the last update date is in the future, this suggests ongoing development and support.
When connected to the Blue Raven flight computer, you can see live sensor data. For the Featherweight GPS tracker, you can view real-time rocket position, velocity, link quality, and tracker health.
No, Featherweight UI does not contain advertisements. Users can expect an ad-free experience while using the application.
