QR vs NFC Guard Checkpoints: Which Should You Use?

What each one is

A QR checkpoint is a printed code an officer scans with their phone camera. An NFC checkpoint is a small chip the officer taps their phone against. In both cases the scan records which checkpoint was hit, when, and — with the right app — where.

QR codes: pros and cons

• Works with any phone camera — nothing extra to buy.
• Effectively free to produce: print, laminate, and post.
• Easy to replace if a code is damaged or a site changes.
• Downside: a printed code can be photographed and copied.
• Downside: needs enough light and a steady camera to scan.

NFC tags: pros and cons

• Tap to scan — fast, and works in the dark with no aiming.
• Durable, weatherproof tags suit permanent outdoor posts.
• Harder to duplicate than a printed code.
• Downside: tags cost a little more than printing a QR.
• Downside: requires NFC-capable phones (widely available on Android).

A simple rule for choosing

You don't have to pick just one — most sites mix both. As a starting rule:

• Use NFC for permanent, exposed, or security-sensitive posts where durability and tamper-resistance matter.
• Use QR for quick rollouts, temporary checkpoints, indoor spots, or teams on mixed devices.
• If your officers use iPhones or a mix of phones, lean on QR so everyone is covered.

What matters more than the tag

The tag is only half the story. What makes a scan useful is the data attached to it: the timestamp, the GPS location, and how a missed checkpoint surfaces in reporting. A QR or NFC scan that records all three is proof; one that just beeps is not.