QR Codes: Static vs Dynamic — Which do you actually use?

Lately I’ve been diving deep into the world of QR codes (yes, I know, not the sexiest tech topic 😅).

One thing I’ve noticed: a lot of services make it really confusing. You generate a QR, then months later you find out it’s expired, locked behind a paywall, or you’ve lost control of the redirect.

I’m curious: for your projects or businesses, do you prefer static QR codes (permanent, free, unchangeable) or dynamic ones (redirectable, but usually managed by a service)?

Personally, I’ve been working on a little side project, hrefs.eu , that lets you do both:

Static codes: free forever, never expire

Dynamic codes: you control the redirect, no lock-ins

But I’d love to hear from this community:

Do you even use QR codes in your projects?

If yes, which type do you find more useful?

What’s your biggest pain point with them?

Let’s discuss! I think there’s more nuance to QR codes than people give them credit for.