To turn the VPN on:
Navigate to the Settings and toggle the VPN on by sliding the toggle to the right. After a few seconds, the VPN will connect and you will see a small VPN icon in the bar on your iPhone or iPad. You can turn it off the same way. Whenever you need protection, simply connect the VPN from the Settings screen.  When the VPN is active, you will see a small 'VPN' icon in the status bar next to the clock.