There are definitely some workarounds that may help you to send free SMS and group text. However, these workarounds still utilizes EDGE, 3G or cell services that have cost. In case you would like to have a completely free solution for sending free text messages or group text, you can use textPlus.

textPlus is a free app for iPhone and iPod Touch and it lets you send and receive free SMS. textPlus leverages on GOGII’s SMS technology to enable true group conversations in text and seamless interaction between textPlus app users and their friends using standard SMS text messaging. With this app, you can send unlimited free text messages over WiFi network without the need of cell, EDGE, GPRS or 3G, all of which may be required to pay by mobile carrier depending on your service plan.

Besides, textPlus also supports group conversation and ability to write text in landscape mode. Group SMS conversation is very much similar to chatroom with SMS as instant messages. You can text with several friends in one go. All the messages sent will be delivered to everyone in the group and everyone gets to receive all the replies.

Interested users can get more information about the textPlus app on the official webpage. People who would like to try this app can get a free download from the App Store.