When traveling with a camera and without a Mac, you can use an adapter or cable and the Files app to upload pictures.

If it's an image or video, tap it to open the detail view. If you want to select multiple files on your iPhone, tap the ...

If you’ve got an iPad and Apple’s $29 Camera Connection Kit, you’re all set up for “the only hard drive in the market that can connect directly to the iPad without using a computer ...