Which cryptocurrencies are being used in real world applications today?

Several cryptocurrencies have practical real-world uses today. Bitcoin serves as a store of value and payment method, with countries like El Salvador adopting it as legal tender. Ethereum powers decentralized applications and smart contracts, with over $50 billion locked in DeFi protocols. Stablecoins like USDC and USDT facilitate cross-border payments and remittances. Monero is used for privacy-focused transactions. Chainlink provides real-world data to blockchain networks. In supply chain, VeChain tracks product authenticity. Healthcare uses Guardtime for medical records. Some developing nations explore cryptocurrencies for financial inclusion where banking access is limited. However, adoption remains niche compared to traditional systems, and regulatory clarity varies by country.