What is the child address of Bitcoin?
Bitcoin wallet is built on the Hierarchical Deterministic (HD) framework, which has methods for generating and managing different addresses. Each public address of your wallet will be generated from your wallet's Extended Public Key (xPub).
If you use the same address to receive Bitcoin, everyone can track all your transaction records easily. By creating a new address, a child address, you are better able to maintain your privacy.
How to creating child address:
1.Tap “...” button in assets page
2.Tap ”Wallet Address”
3.Select it after you added address
4.Ruturn assets page and tap wallet address
5.Select “Child Address”
6.Tap address then copy it