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.
1.1.6
July 28, 2026
-A low-power sleep mode for the Swift tracker that you can control from the phone, which cuts the power consumption by about a factor of 4. Good for making a small battery last longer between flights. -Lost rocket mode for the Swift tracker. If the Swift lands and doesn't hear from the ground station or the phone for 5 minutes, it starts a sleep/wake cycle that includes a transmission on the original paired tracker channel and the lost & found channel so that other Featherweight trackers can pass along its location. A Swift tracker in lost rocket mode can last longer than 25 hours when using a 400 mAhr battery. -Improved over-the-air firmware updates Bug fixes: -Detect the end of a channel scan -Preserve the Swift channel number when changing channel plans -More reliable voice telemetry -Original tracker channel scan now covers all channels in the original channel plan
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.
