Cash App, a service by Block, will introduce stablecoin sending and receiving capabilities early next year. Each user account will receive a blockchain address, facilitating the automatic conversion of stablecoins to USD within the app. Conversely, USD transferred out will be converted back to stablecoins. While the specific stablecoins and blockchains remain undisclosed, the app will also allow users to exchange cash for Bitcoin and make payments via QR codes without holding Bitcoin. Block emphasizes its commitment to blockchain and coin neutrality. This follows Square's recent launch of a Bitcoin payment feature for merchants.