I'm sorry I worded the questions so awkwardly but I'm looking for something incredibly specific. I'm looking for a platform where I can set up a photo competition where people can upload their photos into categories and voting takes place by showing visitors a certain number of photos and having them pick their favorite out of the bunch. I would also like for it to be dynamic in that it pulls photos from a database at random. This idea already exists in the form of Shoot & Share's yearly photo contest but I can't figure out if they themselves are using a specific platform or if it was developed in house.
I've seen lots of hosting contest hosting options like Survey Legend, Pollunit, Woobox, and Submittable. The closest one to what I wanted is Survey Legend but you have to manually set up the photos for the voters to vote on versus automatically pulling from an available pool of photos. Judgify.me was also pretty close but it doesn't look like it wants to show all photos at the same time versus 2-4 at a time.