Voice Journal: AI Diary & by Yevhenii PetrenkoVoice Journal: AI Diary & by Yevhenii Petrenko

Voice Journal: AI Diary &

Yevhenii Petrenko

Yevhenii Petrenko

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.
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Posted Aug 6, 2026

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 ...