If you're shopping for a lost-and-found tag, you'll see two technologies dominating the category: NFC (near-field communication) and QR codes. Both link a finder to a contact page on the open web. Both work without an app. Both can be done well or done badly. So which is better?
Short answer: NFC is better for almost every use case. Here's the long answer.
Scan reliability — the thing that actually matters
The whole point of a lost-and-found tag is that a stranger will use it. Whatever creates the smallest amount of friction wins.
- NFC: Hold the phone near the tag. The phone vibrates. A notification opens the contact page. Done. About 2 seconds.
- QR code: Open camera app, frame the QR, wait for scan, tap the link notification. 6–15 seconds, plus the friction of "what do I do here?" for less tech-savvy finders.
Sounds like a minor difference. It's not. Every extra second is a chance the finder gives up, gets distracted, or decides it's not their problem. NFC's "tap and you're there" experience removes the moment of "ugh, do I really want to do this?"
Phone compatibility
NFC requires NFC hardware on the finder's phone. Good news: every iPhone since the iPhone 7 (2016) has it, and most Android phones do too. Bad news: a small minority of older or budget Android phones don't.
QR codes work on any phone with a camera — essentially every smartphone ever made.
This is the one place QR wins. If you're tagging items for a senior population or in a region where older phones are common, hybrid (both technologies on the same tag) is the smart choice.
Durability and aesthetics
QR codes are ink. They wear off, smudge, fade in sunlight, and become unreadable when scratched. A QR sticker on a luggage handle gets dragged on conveyor belts and scuffed by other bags within a few trips.
NFC chips are sealed inside the tag's housing. Nothing on the surface needs to be readable. The tag can be scratched up beyond recognition and still work because the antenna and chip live underneath.
NFC tags also look better — no big black-and-white square eating real estate on your bag.
Privacy
This is a wash if both are implemented well. Both NFC and QR codes typically point to a URL on the issuer's website (e.g. lochtags.com/k/A1B2C3). Neither encodes your personal information directly. The privacy concern is what happens at the URL — does the page show your phone number, or route through a contact form? With Lochtags, finders go through a secure form that emails you. Your name and number stay private regardless of NFC or QR.
Cost
QR codes are virtually free to print. NFC tags cost cents to manufacture. Either way, when you're paying for a lost-and-found service, you're paying for the platform behind the tag (notifications, owner accounts, secure contact flow, support) — not the tag substrate.
The "I forgot it had a tag" problem
People who find a lost item often miss the QR code entirely if it's small or partially worn. A finder who picks up an item with NFC capability gets a phone notification automatically (on iPhones with iOS 13+, NFC scanning runs in the background while the screen is on). They don't even need to think about scanning — the phone tells them.
The verdict
- For most people, most of the time: NFC. Lower friction, more durable, looks cleaner, scans automatically on modern phones.
- For mass-distribution to unknown audiences (e.g. free hotel-branded tags handed to all guests): hybrid NFC + QR is ideal — NFC for the 95% with capable phones, QR backup for the rest.
- For maximum compatibility (older phone populations, very international travel): QR is the safe fallback.
Lochtags ship with NFC as the primary scan method and offer optional QR backup labels for customers who want maximum redundancy. More questions about NFC tags →