Best to anwser is to quote em :

"Delta is the ultimate Bitcoin & cryptocurrency portfolio tracker app. Keep track of all cryptocoins, including Bitcoin, Ethereum, Litecoin and over 2000 altcoins. Use the free app to get the latest coin prices and market charts in your local currency and get alerts to make sure you don’t miss out on your next crypto investment."

it's a nice app indeed ! Very practical cause it include a big bunch of exchanges
So even if all your currencies are on different ones you can track em all in the same app !