Startup Idea : Universal Retail Loyalty points app

We see consumers with too many loyalty points cards , why not have one app that holds all their fav retailers loyalty points. The app will let users scan discount qr codes , check in for added value points, redeem their points , and enter participating competitions, view e pamphlets etc. .retailers will pay a yearly fee to join the program and will have access to a web admin panel to add specials and add competitions etc