Dynamic vs Static QR Codes, Explained With a Pizza Box
The clearest way I've found to teach the difference: printing your address on the box versus printing a forwarding service.
Here is the whole static-versus-dynamic QR debate, explained with a pizza box, because that is genuinely the clearest way I have found to teach it.
A static QR code is like printing your home address directly on every box. It works perfectly until the day you move. After that, every box you already sent out points people at a house you no longer live in, and there is nothing you can do about the boxes already in the world. The address was baked in at print time.
A dynamic QR code is like printing a forwarding service instead. The box says, in effect, go ask the post office where I live now. When you move, you update one record at the post office, and every box ever printed quietly starts pointing at the new place. The mark on the box never changed. Where it leads did.
That one difference is the whole thing. Static is fine for something disposable, a one-off flyer, an event you will never repeat. Dynamic earns its keep the moment you might want to change the destination, or measure how many people followed it, because both of those need that forwarding layer in the middle that you control.
So the question to ask before you print is simple. Will I ever want this to point somewhere else, or know how many people used it? If yes, do not print your address on the box. Print the forwarding service, and keep the keys.