In a separate announcement, Coinbase said it would allow Coinbase Visa debit card holders to earn crypto rewards on spending in dollars as well as certain cryptocurrencies without fees, and that it had improved its mobile and web apps to enable users to research assets, conduct transactions and “engage with the broader cryptoeconomy.” The company said that beginning this week, cardholders will be able to earn 1% on DAI tokens or 4% on AMP or RLY tokens. They can already earn 1% on ether, dogecoin and bitcoin, and 4% on the GRT and XLM tokens.