Fortunately yes, recently i've been playing with this https://github.com/rpdrewes/whisper-websocket-server which uses K6nele as frontend on android if you really care about performance.

Tho if you're looking for a standalone app then you can give this a go : https://github.com/alex-vt/WhisperInput and run it right on your phone :]

For now they both run regular openai whisper thus tiny.en but as you can see there's tons of impromvement potential with faster-whisper and now distill-whisper :D