WeChat official account, a property WeChat, can do those functions? What company developed this platform?

The functions that can be realized are still very rich, and basically all attributes can be included.

For example, WeChat property payment, WeChat repair, and community announcement notice.

Wechat withholding property fees, service reservations, property style display, etc.

Micro-communities all provide these functions. Of course, you still have to confirm your needs, no matter how much you say, you must match your needs.