Changes

As it is open sourced it can be customized a lot . Google publishes most of the code (including network and telephony stacks) under the non-copyleft Apache License version 2.0. which allows modification and redistribution. | It cannot be customized easily unless jailbroken. Jailbreaking is the process of removing hardware restrictions on iOS the use of software and hardware exploits; Jailbreaking permits root access to the iOS file system and manager, allowing the download of additional applications, extensions, and themes that are unavailable through the official Apple App Store.

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