If you're a fan of Greta Thunberg, the Swedish teenage environmental activist, then the Greta Soundboard app is for you. This Android app, developed by Devife, is a soundboard that features a selection of Greta Thunberg sounds. The app is free to use and will receive regular updates with new sounds and features.

The Greta Soundboard app is easy to use and features a simple interface. The app does not require any special permissions to function, but it does ask for permission to read and write in order to share the sounds with others. Additionally, the app requests permission to change audio settings, which allows users to change their ringtone, SMS tone, or alarm tone to one of the Greta Thunberg sounds.

Overall, the Greta Soundboard app is a fun and simple app for fans of Greta Thunberg. It's free to use and offers a decent selection of sounds, with the promise of more to come in future updates.