I have an NFC door, but I always have to enter a pin, and I have thought, "Can I unlock this using an NFC on my Apple Watch, Apple AirTag, or iPhone, since they all use NFC?" It seems it would save so much time, yet I do not know if there is an app/program that I could use, much less how to program it to trigger. Please reply if you have a response.
Can I use an NFC on my iPhone to unlock a door?
When you refer to "NFC door" what do you mean with that? You'd need an Apple Access certified NFC reader at the door - here is a guide on the topic: https://www.getkisi.com/guides/apple-wallet-access