Great app  I use it along with Tasker to automatically connect to my VPN anytime I connect to any WiFi besides my own. I have been using nearly daily for over a year now  on 2 phones and 2 tablets (after upgrades). I finally had my first issue  which took about 3 minutes to correct. Recently after upgrading the app on my Note5  the app would constantly crash. Since it was working fine on my Tablet  I decided to re-install with the intent of contacting the developer for help. The re-install fixed whatever the issue was however  and my VPN settings were still there after the re-install  so I did not have to put them back in. Results may vary of course.
April 25 2016