How do I disconnect from Hotspot Shield?

 To disconnect from the Hotspot Shield VPN, tap the STOP button.
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How do I know that Hotspot Shield is disconnected? 

First, the power or turn on button will appear and also, in the Android Notification bar, the VPN Key icon will no longer be there.

Reconnecting Hotspot Shield

To reconnect and restart Hotspot Shield protection and services, just tap the Start Connection button on the main screen.