New Privacy settings in iOS 6 and newer require that users specifically grant permission to any app that requests access to personal information on the device. This includes access to Location Services, Contacts, Calendars, Reminders, Photos and Facebook and Twitter services.
If you do not see your Contacts listed on the appropriate screens in the Glympse app, check your iOS Privacy Settings to make sure Glympse has permission to access this information on your device.
Below are steps to access Privacy settings on iOS verion 6 and later. Additional information here: http://www.tuaw.com/2012/09/19/ios-6-restoring-app-specific-privacy-permissions/
1. On the main iOS Settings screen, tap Privacy.
2. From the Privacy screen, select Contacts.
3. Make sure that the toggle next to Glympse is set to "ON."