STL Happy Studio

How this developer operates

• Carrier title Voice Notes holds 68% of the developer's installs
• Hit rate 0% of launches reach 100k installs (0 of 8 at least 30 days old)
• Release rhythm a new app every ~315 days on average
• Maintenance 1 of 8 apps updated in the last 90 days · last update 88 days ago

All apps

App	Style	Rating	Installs	Released
Voice Notes	Productivity	★ 4.4	50,000+	Mar 2, 2019
Quick Start	Tools	★ 4.5	10,000+	Oct 18, 2019
注音查詢漢語拼音	Education	—	1,000+	Mar 4, 2019
Voice Schedule	Tools	—	500+	Dec 17, 2019
Voice Clock / Timer	Tools	—	500+	Jan 28, 2022
Simple Period Tracker	Health & Fitness	—	500+	Jun 16, 2019
Learning Chinese Vocabulary	Education	—	100+	Sep 3, 2019
Simple home inventory manager	Tools	—	100+	Mar 16, 2025