Ye*****
Why has the old version been removed? The issue with the newer app is that it is not possible to edit a timer on devices where the main unit has firmware 1.3.8(1). The save / delete buttons do not appear when trying to edit a timer. I was able to transfer the old app from my previous phone using ES File Explorer by transferring the APK. So I am currently not stuck. I still highly advise you to either fix the issue on the application or to allow FW update of the main unit to the latest.