Trust Wallet acts as a bridge that connects to individual blockchains via their nodes. Every blockchain has their own set of public addresses. These addresses are where the Crypto are encrypted and stored.
Trust Wallet does not hold or control any Crypto , it just gives the user access to it.
Trust Wallet is free to download and does not earn anything when you use it. Fees are all paid to the miners or validators.
Trust Wallet helps you manage your addresses, in order to send and receive Crypto. The app also provides the user the ability to do other Crypto transactions, like trading and staking.
Make sure to safely back up your recovery phrase and never share your recovery phrases with anyone, under any circumstances.