Tencent has finally released a separate mobile app to manage WeChat Official Accounts, called 订阅号助手. This is similar to the Facebook Page app that helps you publish, edit, reply private messages for official Facebook Pages on your mobile.
The new app lets Official Account managers edit and publish posts on their smartphones. Account owners can also check and reply private messages, manage subscribers and accounts, and access account analytics via their mobile.
However, the app is only available on iOS at the moment (sorry Android users).
Find out more here: http://bit.ly/2wDvdCV