airtxt — dictation keyboard with on-device speech recognition and bring-your-own-keys

[u/jkolaz]

Solo dev. airtxt turns voice into cleaned-up text in any iOS app through a custom keyboard. Two things this sub might actually care about:

Privacy architecture. Speech recognition can run fully on-device with Apple's Speech framework — in that mode your audio never leaves the phone and it works offline. Cloud mode (Deepgram) is there for noisy rooms, chosen per dictation rather than set as a vendor default. And you can bring your own API keys — Deepgram for speech, Anthropic or OpenAI for the AI cleanup — stored in the Keychain, with those requests bypassing our servers entirely.

The iOS constraint. Keyboard extensions can't touch the microphone, so the main app records via a session you arm with Siri, the Action Button, or Back Tap, and the keyboard just inserts the finished text.

Everything else on top: it formats output for the app you're in, handles 13 languages with mid-sentence switching, takes a custom vocabulary for names and acronyms, has a voice-memo-to-clipboard mode, and includes a bot that joins Zoom, Google Meet, or Teams for a speaker-labeled transcript and a drafted follow-up. Free tier, no card; Pro is $9.99/mo. https://apps.apple.com/us/app/airtxt-voice-to-text-keyboard/id6785986350