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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Find Shade While Walking: New Android Navigation App
Real-time shade mapping for pedestrians. See which side of the street is shaded before you walk, plus smart route planning that prioritizes cooler paths.
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Brain Training Note: Daily Cognitive Drills for Android
Train working memory, processing speed, and pattern recognition with science-backed exercises. No signup required. Available now on Google Play.
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Gymdex: A Gym Exercise Tracker Built for Real Workouts
Gymdex is a gym exercise catalog and workout logger in one app. Track your lifts, check form, and watch progress over time. Available on Google Play.
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Four Pillars Match: Score Your Relationship
A new Android app that reads two birth charts and scores relationship compatibility with detailed breakdowns. No sign-up, no data sent to servers.
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Keyclack: Press Keycaps, Hear Real Typing Sounds
A new Android app that lets you press virtual keycaps and hear real mechanical keyboard sounds. 2,000 combinations, 29 badges, zero permissions.
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Ængdeal now available on Android
The Korean deal aggregator app that pulls hot discounts from multiple communities into one feed is now available on Google Play.
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Cabling Tycoon comes to Android
Learn RJ45 cable crimping through hands-on simulation. Cabling Tycoon is now available on Google Play for Android users.
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FortuneLog: Track Divination Readings and Verify Predictions
A personal note-taking app for tracking divination consultations, managing costs, and verifying predictions over time. Now available on the App Store.
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Learn Ethernet Cable Termination Through Play
A hands-on simulation game that teaches RJ45 cable assembly through shop management. Build cables, serve customers, and master networking standards.
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I Built a Deal Aggregator App for iOS
Tired of jumping between community forums for deals? I built Angdeal to surface hot deals from Korean online communities in one feed.