This is currently possible on the Android, Mac, and Windows apps. You can add Trusted networks to a list in the Settings/Preferences menu and enable the option to connect on Untrusted networks, which would be any network not on the Trusted list.
An error occurred while saving the commenttravis roscher commented
This doesn't seem to work in the Windows app. And the configuration dialog isn't very clear. And support doesn't seem to know/understand what's going on with it.
I've got the 'Connect VpryVPN when using untrusted WiFI' box checked, and my home network is added to the list of networks there, but when i connect to that network, VyprVPN fires up.
I just spent the last hour talking to the support chat window guys, and they told me that the list of networks there was the list of untrusted networks, and i'd have to add every new untrusted network i encountered to the list. if this is actually how it works, that would be a serious design flaw.
but, i can kinda sorta see how he might have thought that. the labeling on the window there is kinda ambiguous. It doesn't say those are trusted networks until you click add. but the way it's behaving, i'm kind of inclined to think maybe he is right... but then, that couldn't be, because it wouldn't make any sense to do it that way.