The Nodeflux Android SDK is provided to do active liveness checking for an Android application. On the integration method, we provide two types of integration i.e. Basic Implementation and advanced implementation. On the Basic implementation, the communication only involves client mobile application with the Nodeflux backend, it is a simple integration if you need quick integration for testing. On the other side, the advanced implementation not only involves the mobile application with Nodeflux backend but also your backend to ensure security purposes by using a one-time submission token. Please check the link below for the integration detail.