When a user first attempts to download Secret from the Google Play app store, they’re informed of the data they’ll be sharing with the developers of said app. You’ll be sharing your GPS and network-based location, full network access, network connections, and the app will be sharing information with you from the internet. Very standard for an app that’s not based on secrecy.
The app "Secret" is just such a paradox. When you first sign up for the app, it’s made clear that you’re sharing information with the app’s creators. You don’t have to give your phone number, but they do recommend it. You do have to give some form of email address so that they app can begin pairing you with "friends."
The "Secrets" you see come from your network. If you have a Google+ account like me, for example, this means your network is going to be ultra super massive. If you have an email that’s only attached to one other friend, it’s possible that you’ll only get secrets from them.
This app shows secrets ranging from what a person did at work today to what Facebook’s plan for a campus expansion might be. Trust the collection at will, if you dare.
Secret is a rapidly growing group that’s received monstrous amounts of cash in the recent past so that they might continue "disrupting" the app ecosphere. This app is unique, that’s for certain. It’s also free to use, and appears (for now) to be free of advertisements.