Direct Answer
Static QR codes never expire. A static QR code permanently encodes its destination (URL, WiFi credentials, contact details) in the QR pattern itself — it will work for as long as the destination it links to is accessible, with no subscription required. Dynamic QR codes may effectively expire if you cancel the paid subscription that manages the redirect — the QR code continues to scan but may redirect to an error page or a redirect to an upgrade prompt. All QR codes from UnlimitedQRCodes.com are static — they never expire and require no subscription.
The expiry question depends entirely on which type of QR code you have. Static codes (generated by UnlimitedQRCodes.com) are just patterns that encode data — they contain no server dependency and will scan correctly forever. The only way a static QR code 'stops working' is if the URL it encodes goes offline. Dynamic codes (offered by QR Tiger, Bitly, Flowcode) encode a short redirect URL managed on the provider's servers. If you cancel your subscription, the provider may disable the redirect, making previously printed QR codes non-functional. This is a significant risk for businesses that print large numbers of outdoor signs with dynamic codes.
Static QR codes last permanently — they work for as long as the linked URL or content is accessible. There is no technical expiry date. Dynamic QR codes work for as long as you maintain a paid subscription with the provider that manages the redirect.
A static code never technically 'expires' — but if the URL it points to goes offline (e.g., a website shuts down), the QR code will scan successfully but open a broken link. Dynamic codes may redirect to an error or upgrade page if the managing subscription is cancelled.
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