Invert is a tool that helps you keep track of item flips. For your convenience, it is set up to use Flipchat1's standard list of items, but you can always enter a custom item if you're flipping an item that Flipchat1 doesn't price check.
Click here to see more info about the basics of flipping with Flipchat1, and gain a better understanding of the concepts that this tool is based on.