Please recommend an Android app that will export all images/photographs and videos from MMS messages (SMS text messages with multimedia content).
Importantly, I want the app to export all the media content in as few steps as possible. I want to export hundreds of images/videos, so the app must perform the export for all MMS messages automatically or have multi-select functionality.
Another requirement is that the files, when saved, must have filenames that include a timestamp. The timestamp can be the time and date the message was sent or received; either way is fine.
Also, the exported files must either indicate the sender in the filename or must be placed in folders that indicate the sender. In either case, the sender can be indicated via their name or phone number; either (or both) is fine.
Gratis is preferred, but not required. Open-source is a nice bonus, but not required.