In the past there has been an increasing number of reports, that the Android APK did not work. And while it kept working for me for older versions, all attempts to get the 1.9.0 version running failed and I have no idea left how to fix that. So, officially from now on, there won't be any mobile support.
If you really need Android support, you can go to the Android downloads and experiment with them. Version 1.5.1 (APK) is confirmed running for a lot (but not all) devices.