finappster enables you to link your Bitcoin, Ethereum or Litecoin wallets. Let us know, by emailing us at firstname.lastname@example.org if there are other types of coins you'd like to monitor so we know which ones to add next.
Once you've logged in, click on "Connect" at the top of the page, and:
If your wallet holds another cryptocurrency you'll need to connect it again, specifying the additional coin name, in order to pull the correct price data through.
You can either "Add more" or go to your dashboard to see it.