I think this app is pretty cool. However the problem I have with this app is it defaults your VPN connection to Lockdown (iOS), and it doesn't matter if you use their VPN or not. I have multiple VPN profiles, work, home and a company I do consulting for. And if you have Lockdown running (which seems to do a great job at blocking things) and you change the VPN profile to something else, so I can login to my office, it turns the firewall off. And when you go to turn the firewall back on, it then changes the default VPN profile back to Lockdown. I have experienced this on both my iPad and iPhone. I use the VPN a lot on those devices, I VPN into my office daily and use Remote Desktop and or login to a switch or router to configure access for something. So as much as I like this app, I think I will need to remove it. If you do not have any VPN profiles, then this is no big deal for the average user. For people like me, this could become a problem. I do however love the Duet app. I use that once and a while when traveling and I need a second display for my laptop.