It has stopped working completely
Thank you for your bug report and sorry for the inconvenience. These issues are now fixed in the latest build of the iOS app (version 3.0.2).
Eini Di Bon commented
I have been using the MS translator on an Android smart phone for a while. It worked well until.....I tried using the voice translation. It seemed to work, but the next day I discovered the app blew through 139 GB of my data plan......whats going on?
Darren Sterling commented
Same problem with the latest build. The mic does not work