Vigil Web site monitoring app for iPhone Posted on Tuesday, March 5th, 2013 at 5:59 am. PTWritten by Jim Dalrymple It’s always good to know if you’re having a problem with your Web site. Vigil can help you with that. Mau Sandoval Oh, pleasantly surprised. hat tip craigt love this app Vigil App Thanks for the kind words. Let me know if you have any questions about the app.