kuo chun chang

How this developer operates

• Carrier title iPMAP Mat holds 68% of the developer's installs
• Hit rate 0% of launches reach 100k installs (0 of 2 at least 30 days old)
• Release rhythm a new app every ~175 days on average
• Maintenance 0 of 2 apps updated in the last 90 days · last update 439 days ago

Same company, other accounts · 張國均

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

Listings that changed hands

App	Direction	Counterparty	When
iPMAP cushion	← received (same company)	ArthurChang	Nov 8, 2026
iPMAP Mat	← received (same company)	ArthurChang	Nov 8, 2026

All apps

App	Style	Rating	Installs	Released
iPMAP Mat	Medical	—	100+	Apr 18, 2020
iPMAP cushion	Tools	—	50+	Oct 9, 2020