iPhoto for iOS (iPhone): iCloud
iCloud stores your music, photos, apps, contacts, calendars, and more, and wirelessly pushes them to all your iOS devices and computers. iCloud integrates seamlessly with your apps, so everything happens automatically.
Before you can use iCloud, you need to sign up for an iCloud account on a device that has iOS 7 or a Mac that has OS X Lion v10.7.3 or later, and then turn on the iCloud features you want to use on all your devices and computers.
For a complete list of iCloud requirements, visit the iCloud Support website.