Decent app, but terrible usability – Acrobits Groundwire Review

Groundwire is one of the better VOIP apps out there with great features, low battery drain for incoming calls, and decent sound quality. However, with the latest major revision (v3.x) the app had taken a major step backwards in terms of usability, even though call quality has actually improved. The usability issues have made me switch to Bria as my primary app - hence 2 stars. The all dark theme is impossible to see and use outdoors. It's very hard to see (even indoors) if Mute is enabled. Basic call related information like call duration have been removed, or hidden away. Thin fonts with low contrast are hard to read. Overall the app needs a high contrast theme. Bluetooth headset usage is now very buggy - once you mute a call, the unmute doesn't work. DTMF tones are extremely unreliable - have to switch off the headset to reliably enter numbers on the keypad. It doesn't handle multiple (merged) iPhone address books well. You might select a person's cell phone to call, but Groundwire will actually call their work number etc.
Review by thebrieze on Acrobits Groundwire.