The Chancer

Hi we are a start up and would like an app developed that allows participants sitting in a stadium watching a specific game of sport to play the game. As an example when the umpire/referee blows the whistle for a breakdown the participants will choose on the app one of 5 possible outcomes of what will happen when the ball is back in play. These 5 outcomes are pre loaded and will differ depending on the sport. We will supply these. The app needs to be Geo restricted so that only people sitting physically in the stadium watching the game have access. It is a bit like a sports version of Kahoot. Participants download the app for free and can play whenever they go to the stadium. Players that dont choose the right outcome out of the 5 options drop out and the others stay in the game. At the next breakdown the same happens and all those that made the wrong choice drop out so the playing pool reduce each time until there is just one player left. They win prize money. Can I have a fee estimate to build this and how long would it take.