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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Soilnote Tracks Your Scalp Care Routine on Android
Soilnote is a quiet Android app for logging scalp treatments, shampoo days, and prescriptions—no diagnosis, no scores, just your own record.
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Learn One Korean Four-Character Idiom a Day on iOS
A new iOS app serves one Korean four-character idiom quiz a day, with fill-in-the-blank hints, spaced review, and streaks to build real vocabulary.
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Egg Catch Tycoon: A Cozy Idle Egg-Hatching Game Lands on iOS
A cozy idle collector where you hatch eggs, feed and evolve 30 collectible friends, and let dew build up your nest at your own pace. Now…
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Now on iOS: Turn Any Song into Guitar or Ukulele Chords
MP3 chord finder for guitar and ukulele, previously Android-only, now on the App Store. Turn any song into chords, TAB, and play-along tracks.
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Born Anywhere Turns World Birth Data Into a Life Game
Born Anywhere is a life simulator board game built from real UN, World Bank, and WHO public statistics, now available for Android on Google Play.
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ProofDay: Prove Your Habits With a Daily Photo Streak
ProofDay turns public accountability into an app: declare a habit goal, post a daily photo proof, and get cheered on by people watching, not judging.
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Snorebook: An Android App That Records Only Your Snoring
Snorebook is a new Android app that records only your snoring and sleep talk overnight, so you can hear what happened without replaying hours of silence.
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Find Cheaper Coin Karaoke Rooms Near You in Korea
Conomap maps coin karaoke and noraebang prices across Korea so you can compare cost per song before walking into a room.
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Geupsikkok: Catch School Lunch Allergens Before They Happen
Geupsikkok tells Korean parents the night before if tomorrow’s school lunch has ingredients their child should avoid, plus their favorite dishes.
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Check Which APIs Your GitHub Tools Actually Call
See the real external APIs behind ‘free’ and ‘open source’ GitHub tools. What It Calls shows you the code evidence.