Some features of Apple's iCloud service, such as email synchronization, can work on Android devices. However, Android devices do not officially support iCloud, and many of the advanced features of the service are not available.
It is possible to synchronize email, contacts and calendar information with iCloud servers on an Android device while using Android's native apps for these services. This requires identifying the specific iCloud server where this information is located so that these apps can query the server for information. However, no Android device officially supports the automated backup and file transfer functions of iCloud as of 2015.