Release Candidate version is the most stable version of the program. It fixed all detected critical errors, but there may be non-critical errors, which should not make it difficult for users to work with application.
Mobile versions of the program are paid, in contrast to the desktop versions. And they are distributed only through application stores of the corresponding operating systems.
Minimal supported version is Android 4.4 KitKat.
Minimal supported version is iOS 9.0. Compatible with iPhone, iPad, and iPod touch..