https://techcrunch.com/2017/12/07/coinbase-hits-top-spot-on-apples-us-app-store/

Ignoring recent price rises for a second, if you can — there’s no greater sign of bitcoin fever than an app that lets you buy the cryptocurrency becoming the most downloaded app in the App Store.

That’s exactly what happened on Thursday when Coinbase, the $1.6-billion-valued company behind what is arguably the world’s best-known exchange for converting fiat into crypto, hit the top spot for free apps in Apple’s U.S. App Store for the first time as the price of bitcoin rocketed past $17,000 thanks via a price jump of over 20 percent in 24 hours.