Naughty or Nice Test is a free iPhone app developed by Brandon Stecklein. This entertaining app is designed to simulate a thumbprint scan and determine if you have been naughty or nice. It is important to note that this app is purely for entertainment purposes and does not actually have the ability to determine your behavior.

With Naughty or Nice Test, you can have some festive fun by placing your thumb on the scanner and waiting for the app's response. It is a great addition to Christmas parties or a fun activity for kids. The app also offers customization options, allowing you to adjust the speed of the scan simulation and set your own custom response.

Overall, Naughty or Nice Test is a lighthearted app that adds some holiday cheer to your iPhone. While it may not have any practical use, it can provide some amusing moments during the festive season.