Startup Idea : Barter App

I want to completely remove the concept of Money one day so may be this app will be helpful, Barter App will help users help each other by helping the other person on a particular work. for eg person A will help person B with preparing for Java certification as he is expert in Java and Person B will help person A with developing an IOS app as he is an iOS developer in this way both are helping each other without taking money.