Please check
http://www.coinsmanager.com/ This should be a large improvement over existing apps, in that you'll only need to:
* register with your email
* add your public addresses, associated with a coin
* [optional] specify your fiat currency, default usd
* [optional] specify your favorite exchanges, default all.
The app will take care of everything else (finding the number of coins you own, their current value, and the evolution of your assets over time