I'm trading crypto coins (not an expert), and usually during the day I was checking coinmarketcap's website too see how the market moves... it gets a lot of time to open a link on the mobile so, I found an app "Crypto Currency Watcher" you can find it on Google Play, you just run the app and there are all the Coins updated every second. It saves me a lot of time
https://play.google.com/store/apps/details?id=com.newc.cryptocurrencywatcher