What is a Crypto protfolio you ask?
Well it is where you list your coins and the amount that you've invested in.
For phone, you can use an app called "Blockfolio" or "Delta". Below are the examples of the app. You can choose to display the amount in Bitcoin or in Dollars or in other currency.
Blockfolio
Apple: https://itunes.apple.com/us/app/blockfolio-bitcoin-altcoin/id1095564685?mt=8
Android: https://play.google.com/store/apps/details?id=com.blockfolio.blockfolio
Delta
Apple: https://itunes.apple.com/us/app/apple-store/id1288676542?mt=8
Android: https://play.google.com/store/apps/details?id=io.getdelta.android