My MAJOR PROBLEM with any VPN: My Microsoft word stops syncing with the One Drive cloud when VPN is open. I need Internet and Word open all the time and when using VPN (recently Nord VPN) I can't use Word documents from the cloud (One Drive). My insightful idea for you - find a workaround about this issue to increase your customer base. In the USA they just voted that the Government may spy on your browser history without asking you and without a warrant. Find solutions about that and offer your soft here in the US.