A mobile group messaging app developed and owned by Microsoft. GroupMe was first launched in 2010, today the application has over 12 million registered users that engage in group communication. The application makes it easy to stay in touch with those who really matter to you, and to do so in groups.
Pros & Cons of GroupMe
Quick and easy to make conference calls
With GroupMe you don't have to remember country codes or phone numbers. Simply call the group number and a conference call will be setup to all members of the group.