Free way to transfer SMSs on IPhone to Mac?

I'm trying to transfer my text messages on my iPhone 4s to my Mac so that i can back them up for safe keeping. Unfortunately i have found no good solution for transferring the data without the us of an app i need to buy. Does anyone know a cost free solution that i could use?

Use iPhone transfer platinum which supports iPhone 5S/5C, iPhone 4S, iPhone 4… It can transfer files between Apple devices and computer.