Generally speaking, Purple DS apps supports t he load two major releases of the different app platforms.
For now, Purple DS supports iOS 9, 10 and 11. But the support for iOS 9 might end in near future. Information on i OS 9/10/11 can be found here .
Currently, Purple DS apps support Android 4.4 up to the latest Android release.
Kindle Purple DS apps are available on Kindle Fire.
Purple DS Composer supports MAC OS Mountain Lion to Sierra.
Purple DS Plugins for Adobe® InDesign® is available for CS6 / CC and CC2015 / CC2018.