MMS Liberator (com.chasinglemons.mmsliberator) on Google Play
MMS Liberator helps you reclaim space on your phone's internal memory and allows you to save all of the pictures you've received in text messages with a single button.To use it, simply select the directory where you would like to save images and press the "Copy all images" button. All MMS images will then be copied into the directory you've chosen. If you would like to delete the MMS messages after the images have been copied you can check the "Delete MMS after saving image" boxYou can run the utility as many times as you like as it will skip images it has previously copied.