It connects through Facebook yes, but I've spoken to the founder and as far as I can discern, it seems secure: "we will never sell our user info, never spam our users, nor will we violate their privacy in any way. A few of the fears that we've seen relate to the use of our user data. Echoing off of the statement above, even if we wanted to sell our user data, we built the back end encryption to make it physically impossible to do this- even if I wanted to see where a specific user lives, I couldn't. Essentially, the app requires permissions to perform opt-in functions- for example, if a user wanted to share an alert on their wall, we need permission to post to their wall. Again, we never violate our users privacy so all of the permissions are opt-in."