Since I’m the BuddyPress mobile guy, I get all requests to fix anything including 3rd party plugins. People keep asking for mobile image uploads to be fixed in your plugins.
Images on mobile devices are not in a correctly displayed rotation. Apps usually fix the rotation. It’s really easy. I’ve fixed it in BP album. ( see here - function image resize )
Here’s the code I used to fix BP Album, read the exif data and then rotate.