A wallet is set of secret keys that can unlock a certain amount on the blockchain. With your wallet, you can buy, receive, store, and send Bitcoin or Bitcoin Cash. There are multiple types of wallets. Hot wallets, such as the BTC.com wallet, are connected to the internet. A hot wallet is useful when you plan to frequently check or use your cryptocurrency. A cold wallet is not connected to the internet, such as a hardware or paper wallet.
The BTC.com wallet allows you to transact with your Bitcoin and Bitcoin Cash on any device. In your wallet you can find your public addresses to which people can send you Bitcoin or Bitcoin Cash. You can create an account via the wallet.btc.com website or download the “BTC.com wallet” app for iOS or Android.