 My name is Amyak Shalsagar and I am making an app called UoMe. It's basically having a backend written in PHP and it returns whatever the values we want in a JSON format. In front-end, I'll be using a phone gap so that I can ensure a cross-platform app in the process of development. Currently I'm facing a problem that if I'll be calculating multiple expenses, like this app is calculating multiple expenses and splitting it up amongst multiple users. If I bifurcate the process of splitting up the expenses and adding it up on the client side, it will make the app automatically slow. So I'm trying to take the whole task of splitting up and adding and everything to the server side and just return a final value. What is who, which person knows how much money to whom, which person, like this. So this is the problem and I'm currently done with it so I'll be starting finally with the client side.