This incident was resolved in v4.1.1 of TextExpander for iPhone and iPad.
If you've not already, please update to solve it,
Posted Jul 18, 2016 - 20:02 PDT
We've identified the problem, and we've submitted TextExpander 4.1.1 to the App Store. It's currently Waiting for Review.
Posted Jul 12, 2016 - 10:39 PDT
The iPhone 4.1 app is having problems signing in to TextExpander.com, and gives a "still trying to connect" message.
We are investigating this now. As a workaround press the home button from that screen; then double click the home button and swipe the app off the display to force quit it. Launching TextExpander again will connect. The iPad 4.1 app does not have the same issue.