Remove Messages Automatically
The Messages app can be a giant data hog. All the photos and videos people send you take up an incredible amount of space on your phone. The solution sounds simple — just remove the messages, but It can be a huge pain to comb through your texts and pick which ones to delete and which ones to save. Let Apple do all the work for you by automatically cleaning your Messages inbox.
Open the Settings app and go to Messages. Then find the Messages History section. Here you will find the option to Keep Messages for a selected amount of time. You can choose between 30 days, one year, or forever. Chose 30 days to keep your Messages as streamlined as possible.