Hello - I want to be clear on what I am searching for. I am looking for an app that I can put on the union website for our department folk to download. This app would be used for individuals to POST dates directly on the app from their phone dates they would like trades for. Basically a 3 screen app. 1st screen is where you would place your available trade, the second page is where you can accept a trade on the app. and it would notify the trade was accpeted from the person who placed it. The 3rd screen would show the trades you accepted. I would like the app to track the trades and show who owes you and who you owe on the screen. It would need to track and talk to other app users to make sure that the trades were updated.