A jpg is a RAW file with changes, so you can't save one as the other. (A RAW file is the file as read from the CCD in the camera - no enhancements, no failures. A jpg file is a compressed file with some enhancements and changes. One isn't the other. A RAW file "saved as" a jpg file is a jpg file.)
As for saving the RAW file and the jpg file as separate files, some apps allow you to do that (save the RAW file, edit it, save that as a jpg file - picture.raw isn't the same file as picture.jpg - they won't interfere with each other), others don't. Start installing camera apps that handle RAW images.
05-28-2016 04:56 PM