Notes from a one-person app studio
I’m SiU Ahn. I build small Flutter apps on my own and ship them to Google Play and the App Store. These are the launch stories and the lessons along the way.
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Translate Recorder: Translate and Save Every Session
Translate Recorder is a clean iOS translation app that auto-detects 9 languages and saves every translation locally — no account needed.
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Learn Guitar Chords Faster with This Simple iOS App
A clean, lightweight guitar chord dictionary for beginners and hobbyists — with sound synthesis, quizzes, and progress tracking built right in.
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Learn Anything Faster with AI Flashcards on iOS
Memento AI generates flashcard decks on any topic instantly using AI, then lets you swipe through them to study. Now available on the App Store.
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Track and Compare Apartments While House Hunting
房찾기 기록 is an iOS app for tracking and comparing rental and purchase listings while apartment hunting in Korea. No account needed.
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Track Your Noise Environment with Noise Recorder
Noise Recorder measures decibel levels in real time, auto-saves segmented audio clips, and reveals when your environment gets loud — all stored locally on your device.
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Learn Ukulele Chords Faster with This iOS App
A compact iOS app for learning ukulele chords — diagrams, fingering, real synthesized sound, and quizzes, all offline. No account required.
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Track Group Attendance Without the Spreadsheet Chaos
A clean iOS app for managing attendance in clubs, study groups, and recurring meetups — with stats, streaks, and one-tap sharing.
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Blood Sugar Diary Comes to iOS: Track Glucose Simply
A clean, privacy-first glucose tracking app for diabetes management and prevention is now available on iOS. No account, no cloud, just your data.
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Track What You Did, Not What You Didn’t
What I Did is a reverse to-do list for iOS — log only what you accomplished each day and build a record of real progress.
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Track Expiry Dates and Waste Less with This iOS App
소비기한 알람 is a simple iOS app that reminds you before food, medicine, and cosmetics expire — no account required.