I also check the price on the exchanger I use the most, YoBit.
But as it is known the price is always higher than the actual one, so I check it on Coinmarketcap from time to time as well.
I use Coinmarketcap when I am by the computer, and when I go somewhere I use the applications which are installed on my Android. The news about crypto prices there is always updated, and I get them every hour.