NFC Tools by Poterion is a free Android application that allows users to read and write NFC tags. The app requires NFC hardware to be present on the device. Without it, the application will not work.

With NFC Tools, users can create and store their own tags, and also read and edit existing ones. The app also supports different types of NFC tags such as Mifare Classic 1k, Mifare Ultralight, and NTAG203.

The interface is simple and intuitive, making it easy to use for both beginners and experienced users. Overall, NFC Tools is a useful utility for those who frequently use NFC tags and want to customize their own tags.