We have just launched Cryptio (https://cryptio.co) : an Accounting & Portfolio management solution (webapp).
We are connected (with API and csv) to My Ether Wallet and 8 exchanges (Coinbase, GDAX, Bittrex, Binance, Bitstamp, Kraken, Poloniex and Bitfinex) and we are constantly working on adding more exchanges and wallets.
With Cryptio, you can :
Consolidate all your transactions and have a clear view on your gains and losses in EUR and USD
Get a tax report (capital gains oriented with FIFO algorithm)
Monitor your coins in real time
Analyze your portfolio (allocation, evolution of gains and losses across time, details by exchange..)
We would love to have your feedbacks on the product !
RE: The best way to track your crypto-portfolio