SendSMS for OSX
SendSMS is an app, for Mac devices, that allows you to send SMS to your friends for free. You can send SMS to anybody you want but there are some limitations. The person to who is the text message must have American telephone number and to be on one of these telephone operators: AT&T Wireless, Verizon, Sprint PCS or T – Mobile. Also the maximum messages you can send per day is 75. SendSMS’s interface is quite simple and intuitive. Look for SendSMS now on the Mac AppStore and download it for Free.