v1.6 doesnt work, cant log in "network error"

Does not work on iPhone 4S. When trying to log in response is "Network Error" and only option is "OK". This issue has persisted since I first purchased the app at V1.3 and app tech support has not responded to requests for assistance in resolving the problem since V1.3.

THIS APP WAS A WASTE OF $4.99

cgsca about iGVoice - Google Voice™ VOIP Phone Call + SMS