Diction

Diction is an iOS keyboard that converts spoken words into text directly within any application, eliminating the need to switch apps or copy-paste. Users can choose between on-device processing (using local models), self-hosted transcription on their own server, or cloud-based transcription. The app supports 99 languages, offers unlimited dictation with no word caps or daily limits, and includes writing tools like voice-controlled editing and rewriting.

Built with privacy as a core principle, Diction uses AES-256-GCM encryption, collects zero analytics or tracking data, and allows technical users to run their own speech-to-text models. The project describes itself as a self-hosted alternative to WisprFlow. The open-source gateway component is written in Go and implements the OpenAI transcription API specification, making it compatible with various Whisper-compatible backends.