ryuckle

How this developer operates

• Carrier title Chalkee - Chalk Message Widget holds 95% 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 ~59 days on average
• Maintenance 2 of 4 apps updated in the last 90 days · last update 15 days ago · updates every ~104 days

All apps

App	Style	Rating	Installs	Released
Chalkee - Chalk Message Widget	Social	★ 4.7	100,000+	Feb 7, 2026
Chalkboard Doodle Simple Draw	Art & Design	★ 4.1	5,000+	Dec 10, 2025
サニタリーマップ - 無料生理用品検索	Maps & Navigation	—	10+	—
Yucali(ユカリ) - シマエナガと個人情報の登録先管理	Productivity	—	10+	—