Coinomi - a web wallet, installed as a mobile application (so far only on Android). One of the main advantages of the Wallet is that it allows you to store not only Bitcoin, but also other crypto-currencies (with a full list available during installation or on the Coinomi website). Coinomi is a great multi crypto online wallet. The code is open source with Private keys being kept securely on your device. At present the wallet is only available on your android devices - however the team are developing an Apple ios version. The wallet currently supports 78 coins.