Speak Lock
Built an iOS speaking practice app with Screen Time extensions, live transcription, AI feedback, and deterministic scenario selection.
- Built Screen Time extension architecture across DeviceActivity, ShieldAction, and ShieldConfiguration flows.
- Streamed GPT-4o Transcribe over WebRTC, then sent the transcript to GPT 5.6 Luna for feedback.
- Built a library of 500+ scenarios and deterministic selection based on each user's goals and progress.
