Source : TechRadar.
Start-looking-for-skype-alternatives-if-you-have-windows-phone-or-older-versions-of-android.
Excerpt from the above Link....
"Specifically, Windows Phones running Windows Phone 8.1 or older will no longer be supported. iOS users will need iOS 8 or later to use Skype, with Android users required to run Android 4.0.3 or later.
Skype adds that Android devices need a ARMv7 processor or better to fully utilize its app, though phones with ARMv6 processors can still work - albeit without video functionality."
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Current Phone >
Samsung Galaxy s²³ Ultra 512gb Phantom Black.