Originally developed for gliders, this is still where FLARM has its largest customer base. When the FLARM device is set up as a glider, the algorithms utilize special rules to aid in collision risk calculations. These rules have been specially designed for thermalling, ridge soaring, towing, and other flight phases specific to gliders.
The optional integrated IGC flight recorded will come in handy if you are aiming for the stars. PowerFLARM even has engine noise level monitoring as an option for motor gliders.