Natively readable on Android and iOS.
No need for an app.
An AR Code is universal and can be scanned on Android and iOS devices by default.
Immersive AR rendering is supported on iOS>13.0 and Android>9.0, older versions will have access to a WebAR rendering flying over the code. WebAR is supported on Android>4.4 and iOS>11.0 devices using AR.js technology with an AR marker.