2.3 worked perfectly for me until I updated to iOS 8. After that it no longer saves any settings on exit. I eventually found 2.4.6 (torrent) but it crashes on startup (I'm now on iOS 8.3 on iPhone 6+). It seems to segfault after being denied write access to some folders. Finally I found Europe 2.7.0 which works perfectly but doesn't have a universal license.