the easy way to follow bitcoin price is by monitoring the price in coinmarketcap.com
or you can see the price on exchanges.
I followed with the help of the site coinmarketcap.com or by using the widget on the phone. Why is your service necessary, than it differs from others?
Maybe you two should actually take the look at the site or the screenshots before commenting. Everything on coinmarketcap is in US Dollars. OP's site on the other hand, is on multiple fiat currency prices.
But coinmarketcap has more features than this like chart, market cap, volume, and many other. This site just convert BTC to another fiat and doesn't display any Coin beside Bitcoin. Coinmarketcap.com is still best.