kkiruk studio β a one-person indie studio based in Seoul. Making iOS apps, indie games, and LINE stickers since 2016.
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
A casual cat game series with 10M+ downloads on iOS and Android.
Cats are Cute: Cat Town Idle β Idle cat-collecting game.
10M+ downloads Β· 4.8β
Β· Google Play Editors' Choice Β· MobileSyrup Game of the Week (10/10).
Cats are Cute: Pop Time! β Drop-merge-pop puzzle with cats.
James Summer β Waterslide jump arcade game.
James Spring β Hide-and-seek running game.
In development: Snap with Cats, Hotdog Combo, Palette 2048.
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Apps
iOS and Apple Watch apps for everyday tasks.
ThanYesterday β Weather app that compares today with yesterday.
Morning and evening notifications, Bauhaus-style icons, multi-city, home screen widgets, lock screen widgets.
PinClip β Bookmark app for short-form videos.
Save YouTube Shorts, Instagram Reels, and TikTok via Share Extension. Auto thumbnails, folders, iCloud sync, home widgets.
Sidefeed β YouTube discovery app.
Category-based feeds across 12 countries. No Google login, no tracking.
Talk Memo β Voice memo app for Apple Watch.
One-tap recording, on-device transcription, send to Notion/Bear/Obsidian. One-time $4.99.
Honest Camera β Camera app for toddlers.
One shutter, no modes, no tracking, no ads. One-time $1.99.
SwitchBoard β macOS menu bar app for monitoring Claude Code sessions.
Notifications via macOS, Slack, Discord, or Telegram. Free and open source.
More apps in development.
LINE Stickers
Two sticker series available in 5 languages on LINE STORE.
Mr. Finger Goes to Work β Office-life stickers featuring a finger character.
Korean Β· English Β· Japanese Β· Thai Β· Traditional Chinese
Korean Β· English Β· Japanese Β· Thai Β· Traditional ChineseHappy Purrsday! / κΌ¬λ―Έμ ν¨κ» μ μΉμ μΉ β Animated cat stickers.
Korean Β· English Β· Japanese Β· Thai Β· Traditional Chinese
Korean Β· English Β· Japanese Β· Thai Β· Traditional Chinese Writing
Blog β Development notes, design decisions, and project retrospectives.
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2026 kkiruk studio. All Rights Reserved. Site pages