Voice Journal: AI Diary & Mood — a voice-first journaling app for iPhone. Built solo, end-to-end, and shipped to the App Store. Record 1–3 minutes of speech and it comes back as a structured journal entry: OpenAI Whisper handles transcription, then AI post-processing organizes the raw transcript into a titled entry with tags and detected mood. Smart extraction pulls to-dos and ideas out of the stream of consciousness into their own screens, and a weekly digest summarizes themes and progress. Built the audio capture pipeline, the transcription and AI structuring flow, mood timeline with calendar and streaks, and a consent-gated data flow documented for App Privacy review. Native UIKit, AVFoundation, StoreKit 2 subscriptions.