Dynamic vs. Static QR Code: When Does Each Type Make Sense?

The difference in one sentence

Static QR codes encode the target URL directly into the matrix — it cannot be changed after printing. Dynamic QR codes contain a short redirect URL that can be repointed to a new destination anytime from the backend.

Both look optically identical. The difference is not in the code, but in the logic behind it.

How static QR codes work

A static QR code is like a printed image: the information is fixed once printed. A scan triggers no backend request — the phone reads the encoded URL directly and opens it.

Advantages:

• Works without internet (e.g. Wi-Fi codes, vCards)
• No ongoing cost
• No third-party infrastructure
• Maximum data protection neutrality: no tracking happens

Disadvantages:

• Target not editable after printing
• No scan statistics
• Long URLs lead to dense, harder-to-scan codes
• On mistakes: reprint of materials necessary

How dynamic QR codes work

A dynamic QR code contains only a short redirect URL (e.g. qrt.ch/abc). On scan, the phone fetches this short URL, the backend responds with a 301/302 redirect to the currently configured target. This redirect can be changed any time.

Advantages:

• Target editable anytime — even after printing
• Anonymous tracking per scan (timestamp, region, device type)
• More compact code matrix (short URLs = fewer modules = better scanning)
• Multiple campaigns over the same printed code possible
• A/B testing via URL change

Disadvantages:

• Internet connection required at scan time
• Ongoing fee for the provider
• Dependence on the provider (what happens if the service is discontinued?)

When should you choose which type?

Static is the right choice when …

• the information will never change (e.g. Wi-Fi credentials, vCard, geo coordinates)
• no success measurement needed
• maximum independence from third-party providers matters
• the code is printed where a tech update wouldn't be possible anyway
• you need just one code for a hobby or one-off project

Dynamic is the right choice when …

• the target URL might or should change (marketing, advertising, events)
• you want to know how often the code gets scanned (measurement)
• the code appears on printed materials whose reprint is expensive (posters, packaging, business cards)
• multiple codes are systematically managed in a dashboard
• multiple campaigns should run via the same printed code
• the target URL is long or complex and you want a compact code

Frequently asked questions

Can I make a static QR code dynamic later?

No — once a code is printed and contains a direct URL, that stays fixed. You'd need to print a new code.

Do dynamic codes look different from static ones?

Optically no — the code matrix is the same. Dynamic codes often even have less data encoded (just the short URL), making them less dense.

What does a dynamic QR code cost?

At QRTool: 3 dynamic QR codes free on the Free Forever plan. 50 for CHF 12.90/month, unlimited for CHF 19.90/month.

Are dynamic QR codes GDPR/nFADP-compliant?

Yes, if the provider works data-protection-compliantly. QRTool hosts exclusively in Switzerland and processes scan data anonymously per the revised Swiss Data Protection Act (nFADP).

Does a dynamic code work without internet?

No — the scanner must resolve the redirect URL via internet to get the target URL. For offline scenarios (e.g. Wi-Fi credentials in a café display), only a static code works.

Verdict

Static QR codes are right for one-off, unchanging information without tracking needs. Dynamic QR codes are the choice for marketing, advertising, events, and anywhere you want to know how many scan — and where the target URL could change. For most Swiss SMEs in marketing contexts, the dynamic advantages clearly outweigh.