joojang

How this developer operates

• Carrier title 천자문 한자 따라 쓰기 holds 99% of the developer's installs — a one-app developer
• Hit rate 50% of launches reach 100k installs (1 of 2 at least 30 days old)
• Release rhythm a new app every ~7.5 years on average
• Maintenance 2 of 4 apps updated in the last 90 days · last update yesterday · updates every ~294 days

Same company, other accounts · 채준우

Developer names that share this developer's legal name, contact e-mail or website in the store.

All apps

App	Style	Rating	Installs	Released
천자문 한자 따라 쓰기	Education	★ 3.0	100,000+	Nov 8, 2011
공룡과 함께 하는 8급 한자 따라쓰기	Education	—	1,000+	Aug 12, 2022
제과기능사 - 필기시험모의고사	Lifestyle	—	100+	—
톤미러 - 퍼스널컬러 진단 NEW	Beauty	—	100+	Oct 15, 2026