Metamask wallet interface on smartphone screen with token list

The MetaMask wallet interface on a smartphone screen displays a token list, a key tool for interacting with decentralized applications (dApps) on the Ethereum ecosystem.

About this subject

MetaMask is one of the most popular wallets for Ethereum-based cryptocurrencies and tokens, functioning as a browser extension or mobile app. On a smartphone, the main interface displays the ETH balance and a list of ERC-20 tokens the user holds, such as stablecoins (USDC, USDT) or DeFi project tokens. Each token shows its name, symbol, quantity, and approximate fiat value, updated in real time. The wallet allows sending, receiving, and swapping tokens directly, as well as connecting to dApps like Uniswap, OpenSea, and Aave.

MetaMask was launched in 2016 by ConsenSys, a development company focused on Ethereum. Since then, it has become the gateway to Web3, with over 30 million monthly active users in 2024. The mobile version, available for iOS and Android, offers features like biometric authentication (fingerprint or Face ID) and WalletConnect integration to connect to dApps without typing private keys.

Security is paramount: the seed phrase (12 or 24 words) is stored locally on the device, never on servers. The token list interface allows users to manage assets from different EVM-compatible blockchains, such as Polygon, Binance Smart Chain, and Avalanche, by adding the network manually or via auto-configuration. The built-in "Swap" feature uses liquidity aggregators to find the best exchange rates between tokens.

Fun fact: the name "MetaMask" combines "metaverse" and "mask," symbolizing the connection between the browser and the blockchain. The fox icon references the company's mascot, a clever animal representing security and agility in the crypto world.

Frequently Asked Questions

What is MetaMask and what is it used for?

MetaMask is a digital wallet for Ethereum-based cryptocurrencies and tokens, also functioning as a browser for decentralized applications (dApps). It allows storing, sending, receiving, and swapping digital assets, as well as connecting to DeFi services, NFTs, and blockchain games.

How to add a custom token in MetaMask?

In the MetaMask interface, go to 'Tokens' and click 'Import tokens'. Enter the token contract address (available on sites like Etherscan), the symbol, and the decimals. The token will be added to your list automatically.

Is it safe to use MetaMask on a smartphone?

Yes, as long as you protect your seed phrase and never share it. Use biometric authentication and avoid public Wi-Fi networks. The app does not store data on servers, and private keys remain encrypted on the device.