Tango messenger app - Why you shouldn't use it

The Tango messenger app is probably the worst app for privacy I have ever come across. If you have any concern for your privacy at all, you should not use it. Below I will list just a few of the things that concern me as far as privacy and the Tango app. Tango saves all your contacts to their serverWhen you install the app on your phone, it seems to try to sync with all the contacts in your.....