The Trade Builder is for people who want to trade Bitcoin against other cryptocurrencies in order to earn more Bitcoin.
It is a tool for cryptocurrency traders to make betters. The Trade Builder calculates potential profit/loss and other other useful information like position sizing, distance to stop etc. Also, after creating a trade you can see your trade status, profit/loss in real-time as it is recalculated every time there is a price change.
The trades created are easily sharable since each trade has a unique URL, which makes it simple to discuss with others about different trades to make and check back later how they have been going.
The basic mode will guide you through the process. Choose advanced mode if you're already familiar with the above concept.