Opera is a Chromium-based free browser that is faster, safer, and better.
Right now this feature is only available in Sweden, Denmark, Norway, and the United States. You can use a debit card on Android to buy ETH or BTC, or use Apple Pay to do the same on iOS versions of the Opera browser (Opera Touch). Opera partnered with Wyre to make this feature available in the U.S. Once you buy, the Crypto goes into Opera's in-browser wallet, which also has a dApp explorer. I hope they make this feature available worldwide very soon.