Sidekick

Path of Exile is an online, free-to-play, action role-playing game developed by Grinding Gear Games. Sidekick is a Windows helper app developed specifically for PoE.

More to the point, it allows you to check item prices on-the-fly. It uses the official Path of Exile Trade API, and it should work on almost any type of item in the game.

For example, you can check item prices on the official Path Of Exile trade market, and compare and preview multiple items by clicking on the result. Because not all items have in-game prices displayed, for rare items, a price prediction from poeprinces.info is shown. In the case of unique items, prices are provided by poe.ninja.

While the app itself is pretty simple, there are a few things you should be aware of before being able to use it. The application does not require installation, just download the archive, unzip it (or use the official, standalone executable file), select your league (if needed), and run it just like any other app.

As expected, a valid PoE account is required, and so might .NET Core 3.1. After the initial setup, you should be able to see the prices of most items in the game.

To do this, simply hover any item, and press CTRL+D, and that's pretty much about it. There's also an extensive Settings section (press CTRL+O to activate it), and it's also worth noting that all keybindings are customizable.

For more information about the project, feel free to check out the app's official GitHub repository.

If you're an avid PoE player, and you're particularly interested in buying and selling items, then Sidekick should suit you perfectly. It's easy to configure, easy to use, and it works great.