GroupMe app for windows phone, with which you can easily chat with their friends. Now to stay in touch and communicate with friends and acquaintances has become even easier and faster thanks to this app. You are sending the message to all your friends, it's like your personal social network.
Features:

• merge contacts into groups
• Instant communication and chat in real time
• Maintaining push and sms messages
• go on the Internet on the website
• Sending photos