A one-person indie studio from Seoul.
Making games that make you smile β and apps that make your day a little easier.
10M+ downloads Β· 4.8β
average Β· 180K+ reviews
Google Play Editors' Choice Β· MobileSyrup Game of the Week (10/10)
"This game is super addicting..." β Aptaelstrom
"Absolutely adorable!" β simplyxbreathe
"The art style is surprisingly relaxing." β MobileSyrup
Games
Cat lovers, this one's for you. Over 10 million downloads, 4.8 stars, and a MobileSyrup Game of the Week award. Not bad for a one-person studio, right?
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Apps
Not just games β we also build useful things for everyday life.
ThanYesterday β Is today warmer than yesterday?
Your weather app that speaks in comparisons, not just numbers. Morning & evening smart alerts, Bauhaus-style weather icons, multi-city support, and home screen widgets.
SwitchBoard β Monitor all your Claude Code sessions from the menu bar
See what each session is doing in real time. Notifications via macOS, Slack, Discord, or Telegram. Free & open source.
More apps coming soon... stay tuned!
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2026 kkiruk studio. All Rights Reserved.