I have developed this Cryptocurrency Portfolio app in my spare time - CoinTracker: Crypto Portfolio
https://itunes.apple.com/us/app/cointracker-crypto-portfolio/id1284469834?ls=1&mt=8. I have been looking for a simple app with nice UIs to do altcoin tracking and couldn't find many nice and simple ones. The ones that had nice UIs also required a mandatory login. So I thought of developing this simple app that stores coin data locally on your device and enables portfolio tracking with CoinBase like beautiful charts for BTC, ETH, LTC, ZEC, DASH, XRP, XMR and many more cryptocurrencies free. Hope you guys will like it.