3jam is Reply-All text messaging on any mobile phone. Send a text to as many of your friends as you want, and everyone can reply to everyone. 3jam is the only way to send a text message to any number of friends at once, have everyone know who got the message, and have the replies go to everyone. 3jam makes it fun and easy to coordinate and connect with people from any mobile phone using any carrier—all for the price of a regular text message. Using SMS, 3jam enables users to start a group text conversation instantly with any number of friends they choose, all at once, without requiring the recipients to sign up for the service. Anyone who can send a text message can 3jam because messages sent using 3jam are just regular text messages. 3jam charges consumers nothing to use the service - there are no subscription fees and no extra charges on wireless bills. Users do pay their wireless provider their regular text messaging fees to send and receive text messages to a US based number.