MetaMask Extension is an extension for accessing Ethereum enabled distributed applications, or "Dapps" in your browser! The extension injects the Ethereum web3 API into every website's javascript context, so that dapps can read from the blockchain.

Coinbase Sign In building the cryptoeconomy – a more fair, accessible, efficient, and transparent financial system enabled by crypto. Coinbase started with the radical idea that anyone, anywhere, should be able to easily and securely send and receive Bitcoin. Offer a trusted and easy-to-use platform for accessing the broader cryptoeconomy.

Coinbase Wallet is a self-custody wallet that gives you complete control of your crypto. This means that the private keys (that represent ownership of the cryptocurrency) for your Wallet are stored directly on your mobile device and not with a centralized exchange.