The app is highly rated by hundreds of users, whom I imagine mostly have made the in-app purchases to make the pesky pop-up ads go away and/or to have the extra feature of being able to select the gender they will be anonymously matched up with.
All payment info is handled by Apple, so there's no way for the app developers to have access to your information, either.
So far, PURE is being used the most in London, Los Angeles, New York, Moscow, and Mexico City.
Chat Rooms with Strangers has a very simple user interface.
It's no frills but colorful in a friendly sort of way.
Rooms can be about your hobbies, your family, or your work.