I used blockfolio in the past, but now I'm using Delta[1]. It pretty much has more features and I personally really love the user interface. I've been hearing good things about Cryptonaut[2] too, cryptonaut is sort of like the noob-friendly version of blockfolio. I suggest trying them both out. Both apps available on Android and iOS.
[1]
https://getdelta.io/[2]
https://www.cryptonaut.org/This. I've been using delta ever since I got into the crypto world (which would be rather recently) and I must say I love it so far. The only downside of it is that one can't add the transactions between exchanges so that you could add the fee's between them.
Other than that, I believe they are preparing to release the desktop version of delta
