No, we do not bill you for the calls that you place through the mobile app. That said, because the calls are initiating your cell phone's calling app, your individual cell phone minutes are being used while you talk.

A note for our Canadian customers: In order to hide your cell phone number, the app dials a separate number in our phone system and connects the call through that number. The pool of numbers from which our system picks is based out of the US, so calls made through the app in Canada would be considered long distance even if you’re dialing your neighbor next door. We'd recommend double checking with your phone provider to see what your plan allows in regards to international calls before using this feature.