Hi Freddie,
personally in order to get ‘buy in’ from companies target market, I would do exactly what I am looking for:
Photo competition
– Anyone can upload picture
– Start and finsh date of competition
– facebook – twitter – social voting
– page displays all competitors
regards
paul
ps- The only apps that I can find are ‘paid apps’, where I generally donate after the successful implementation of a project. The project that I am working on is for a local charity and I am not charging them, I set it up to help them https://www.bloomnpots.com and I want to run a photo competition.