Not sure if this is my error or a bug, but when downloading from my library things work perfectly, but when downloading from search I just get an apk or zip in my download folder rather than Mitch handling the download.

Edit: restarting the app did clear this up, so I'm guessing it was a bug, if a fleeting one. 

A second issue I've had - quite often installation will fail entirely without any android system error at all. The installer disappears, so I assume that Mitch is clearing it out after the attempt. I guess this is down to the apk rather than Mitch though.