I have a problem with [StackX][1] app on my Samsung Galaxy 4 phone (Android 4.3).  I'm logging to StackExchange in general, and StackOferflow in particular, using my Google ID. The app does not recognize my id as **valid existing** ID.

![enter image description here][2]_________________![enter image description here][3]

I did not find any other way to contact the developer besides StackApps and I do not believe that rating page is an appropriate venue for tech support.

1. Does anybody else have such problem?

2. This app claims to be able to **post comments** (not just to view stuff). Are there other Android apps with such capabilities?


  [1]: http://stackapps.com/questions/3901/stackx-android-application-for-stack-exchange-free-ui-and-optimization-upgr
  [2]: https://i.sstatic.net/gYFLzm.png
  [3]: https://i.sstatic.net/Kmll2m.png