Someone else mentioned “Hello Transcribe”, which is a cool demo due to how real time the transcription is, but it’s effectively unusable for anything practical because it seems to split the audio on 30 second chunks (and not in the contextual way that Whisper normally does it).

Whisperboard is a free, open source iOS app (available on the App Store) that seems fairly user friendly, but there are a few crashes and bugs that the author is hopefully going to work out soon.

Aiko is extremely simple to use, but it only supports the “medium” model, so it isn’t very fast, but the results are good quality. Aiko is really designed to be paired with another app, like the Apple Voice Memos app, where you can share a voice memo directly to Aiko.

does this count?

It supports wav, mp3, m4a, and mp4. All the demuxers were written in JavaScript which was an interesting exercise. I couldn’t figure out a way using native JavaScript audio APIs to load small sections of long audio/video files without loading the entire file.

a macos menu bar app that uses whisper.cpp under the hood.

Uses OpenAI API so really fast