Useful apps for your smartphones, which keep you informed:
Blockfolio
investment/coin tracker
Coinstats
investment/coin tracker
Tabtrader
For Android it can be used for mobile trading. Link the app by API with the exchanges and you can trade anywhere, anytime without the need to open the browser and logging in to the exchange.
For iOS it is just a cointracker. Hopefully they will add the features as in the Android version.
Delta
Portfolio tracker. It is possible to add custom coins for ICOs for example, which are not tradeable yet.