Most users prefer to open an invite code received via SMS in the Glympse app as opposed to opening the invite in a browser first, and then tapping the "View in App" button. There is a simple way to do this!
When you receive an invite and open the link in Safari, simply tap the Status Bar at the top of the screen, on either side of the time. A notification will then open up below the URL with a link to Open in the app. Tap that once, and you should be good to go for all future links from glympse.com.