Do dynamic QR codes work on all mobile devices?

Technical Basics and Compatibility

Dynamic QR codes are based on the international standard ISO/IEC 18004, which applies to all mobile devices with a QR code app. The structure of QR codes themselves remains unchanged, regardless of whether they contain static or dynamic content. The dynamics arise through server-side processing, which is not directly perceived by the QR code app.

Dependency on the QR Code App

The functionality of dynamic QR codes does not depend on the mobile device but on the QR code app that scans the code. Apps that fully implement the ISO/IEC 18004 standard can correctly process dynamic QR codes. However, some apps only support static content, which does not affect the dynamics but only the display of updated content. This is a software limitation, not a hardware limitation.

Server-Side Implementation

Content updates are handled server-side by the provider. When scanning a dynamic QR code, a connection to the server is established to retrieve the current content. This process is independent of the mobile device and is managed by the provider's backend system. Communication between the QR code app and server occurs via standardized protocols that are universally compatible.

Practical Application and Testing

In practice, dynamic QR codes work on all mobile devices as long as the QR code app supports the standard. Test compatibility with different devices and apps to ensure the dynamics function correctly. Using test tools or verifying compliance with the DENSO WAVE standard can help identify potential limitations.