Startup Idea : Near By location Offers provided by shopkeepers

Hi, I'm planning to develop Mobile App which will detect customer current location (areound 10Kms) & provide Near By offers based on His/Her interests like Medical Shops,Food Courts, SuperMarkets,Shopping Outlets,Boutiques,Men's wear,Foot Wear. customer can also add reatiler to his/her faviourite list to get more updates on offers provided by particular retailer. once customer is ready to visit a retailer to purchase a product we will also guide route to them from their location to retailer location.