iWASEL VPN client for Windows (supports Windows XP, Vista, 7, 8, 8.1 & 10)
iWASEL VPN client for Mac (supports 10.6 Snow Leopard and later)
iWASEL L2TP VPN client for iOS (supports all iOS devices iPhone, iPad, iPod).
WASEL NET is an alternative for iWASEL for iOS in case iWASEL was blocked in your region.
iWASEL L2TP VPN client for Android (supports all Android devices that run Android 4.0.3+)