IPhone message backup

We are needing to backup sms messages from iphone 4 . have looked and cant find much. am willing to pay a modest amount for a program if necessary . but just wondered if anyone has any suggestions.

geek_pip4, May 8, 5:06 am

geek_fskb, May 8, 7:35 am

or itunes. Just do a backup and it backs up messages

geek_brycer, May 8, 7:42 am

iMazing can spit them out in a PDF. $30 USD

geek_pyro_sniper2002, Dec 9, 9:26 pm