Does this functionality exist on iOS ? I'm looking for an iOS app that wraps Parakeet or whisper in a custom iOS keyboard.

That way I can switch to the dictation keyboard, press dictate, and have the transcription inserted in any application (first or third party).

MacWhisper is fantastic for macOS system dictation but the same abilities don't exist on iOS yet. The native iOS dictation is quite good but not as accurate with bespoke technical words / acronyms as Whisper cpp.

superwhisper has that functionality.

Right but not running locally on device. No privacy

I really want to run it locally on a phone, but as a developer it's scary to think about making a native mobile app and having to work with the iOS toolchain I don't have bandwidth at the moment, but if anyone knows of any OSS mobile alternatives, feel free to drop them!