I don't actually care which future will be realized, I just want the better experience. I just don't see how a one-company-does-all can possibly win out over a free market of competition between companies and developers on an open platform.

On the other hand, if WeChat eventually opens up its "app" to other developers and companies, then it will effectively become the operating system and platform. At which point (1) this is "isomorphic" our current system and offers exactly zero advantages (we are just changing where we place the label "operating system") (2) it will be competing with iOS and Android, not with other apps (3) they will have to release a phone that runs the WeChat OS