ReactiveWorksApps I built to use myself,
shipped to the stores.
ReactiveWorks makes everyday apps and ships them to Google Play and the App Store, from planning through release and upkeep. I also build apps and websites for clients.
Recently updated
All apps| App | Description | Platform | Updated |
|---|---|---|---|
 Doneshare: Chore Split & Log | Log chores in two taps, agree on fair points together, and thank each other. | Android | 2026-10-18 |
 이별 처방전 | 헤어진 뒤 뭘 해야 할지, 먼저 겪은 사람들의 방법에서 찾기 | Android | 2026-10-18 |
 Voice Calendar | Say “dentist tomorrow at 3” and it lands in your calendar, date and time set | Android | 2026-10-17 |
 WeatherWise: One-Line Weather | Your day's weather in two lines, plus alerts before rain or bad air reaches you. | Android | 2026-10-15 |
 물타기 본전 계산기 | 물린 평단, 본전까지 몇 % 남았는지 한눈에 | Android | 2026-10-03 |
 Idiom Day: Korean Idiom Quiz | One Korean four-character idiom a day: fill the blank, then learn its meaning. | Android | 2026-10-02 |
Services
I build apps and websites for small teams and founders, from the first plan to the store listing, drawing on the apps I ship and run myself.
- App MVPsTurn an idea into a first version that passes store review, starting with the features that matter.
- WebsitesCompany and product sites, landing pages and simple admin screens.
- Store launchesGoogle Play and App Store setup, review back-and-forth, screenshots and listing copy.
- MaintenanceNew features and bug fixes for apps and websites that are already live.
Contact
siwooeo@gmail.comTell me about the app or website you have in mind, or ask about one of the apps. Send an email or use the form and I will reply.