There are many sites which got the price tracker, but the thing is that if you are to get proper idea then it is MUST to have proper guide with all the tools and stuff. For Forex/Stocks, it is generally Bloomberg that you look at, but for Cryptocurrency price charts pls advice which sources to be checked??
Are you only for the charts? you can go with coinmarketcap.com each coin does have a chart for it.
If you have a blockfolio installed on your phone it's also a good way to track your investments through that software, you'll see your gains and losses through it and the percentage from day to day charts.