I have Dropbox on my iPhone and it is set to save all pictures to Dropbox. I assumed it did this to free up space on my iPhone but my phone recently filled.
I put it into flight mode and I could still view all my photos so they must still be on my iPhone.
Eh? I thought you wanted to free up memory on your phone? When you look at them on Dropbox, you’re looking at the back up version stored on Dropboxks server. You’ll need to delete them from ‘pictures’ on your phone.