On Android, there isn't one single authoritative app store (since the Play Store isn't available). Therefore every carrier, OEM, major app maker make their own

On Android, there isn't one single authoritative app store (since the Play Store isn't available). Therefore every carrier, OEM, major app maker make their own app store (which behaves belligerently to their competitors). The users and app makers get caught in the middle of this messy fight. As a user, you might pick the 'wrong' app store. And developers will never have time to upload every update to 100 app stores, each of which may require slightly different metadata. So the stores clone each other's APK which lead to very slow and irreversible rollouts for devs. In a hyper competitive environment like China, not being able to control exactly when your binaries deploy is a huge, vital vulnerability so it has to be solved. A super app that brings existing user bases solves both the deployment and discoverability problems.