More capable than the other app types, device apps can implement third party activities and provide additional functionality that is not otherwise addressed by the other available app types.
A simple scoring app for disc golf.
A simple yoga app for measuring quantitative enlightenment (measured in Namastes) for your workout.
A sample app that uses the Bluetooth Mesh barrel to connect to a mesh network. See the blog post for details.
A sample app that plays different tones based on the measured LIDAR distance. Requires a Garmin LIDAR-Lite v.4 LED.