In the Rapidz app, 'Earn' is synonymous with Staking.
Staking is the process of participating in the operation of a blockchain network by locking up a specific amount of cryptocurrency to support activities such as transaction validation and network security.
In return, Rapidz Pay users will earn rewards, typically in the form of additional cryptocurrency, while contributing to the stability and efficiency of blockchain networks.
This feature has become increasingly popular as a way for users in the crypto ecosystem to generate passive income."