Honestly what new features would realistically be added? These are those kinda utility apps that the end user should forget even exists. You do an update if a major OS version breaks it. Should be very low maintenance.
20 bucks a year for something that toggle a mic input is very expensive.
>Honestly what new features would realistically be added?
The features currently on my todo list if people keep using the app:
1) Currently the profiles are for AirPods exclusively, add generic support for other Bluetooth headphones.
2) Add support for custom profiles. For example some people might have many microphones and prefer different setups.
3) Improve continuity support by detecting user leaving the computer. For example, the user might be on a call and get to the other room and in that case it would be appropriate to switch to AirPods mic.
20 bucks a year for something that toggle a mic input is very expensive.