Timesheet NFC Add-On is a free Android app developed by Tag a Thing that allows you to track your working hours with NFC. The app requires Timesheetor above to function properly.

To use the app, you need to first create a Tag with a name and project. Then, you can write the Tag to a writable NFC Sticker or Item. Once you've done this, close the NFC app and hold your phone on the NFC Sticker or Item to record your work hours.

It's important to note that the NFC Sticker or Item is not included with the app and requires a minimum of 50 bytes to function. Overall, Timesheet NFC Add-On is a useful tool for those who want to track their work hours with ease and convenience.