Bread Wallet

Breadwallet is a real standalone bitcoin client.

There is no server to get hacked or go down, so you can always access your money.

Using SPV mode, breadwallet connects directly to the bitcoin network with the fast performance you need on a mobile device.

In terms of ease of use one  of the top Bitcoin wallets out there, but downside is the limited means of use – i,e, only apple ios.