v1.85 was created in response to a user comment suggesting that the UI be optional. We quickly modified the code and released with the new changes, however there were a few bugs.
v1.86 fixed the following bugs from 1.85: Eraser was missing in non-ui mode. UI preference was not saved and often needed to be toggled twice.
However, we still have a bug with it crashing on some phones (not Droid) which we are working to fix. Please be patient!