iPhone OS 2
Operating system
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iPhone OS 2 is the second major release of the iOS mobile operating system developed by Apple Inc., being the successor to iPhone OS 1. It was the first version of iOS to support third-party applications via the App Store. iPhone OS 2.2.1 is the... Wikipedia
Initial release date: July 11, 2008
Developer: Apple
License: Proprietary software
Package manager: App Store
Update method: iTunes through a computer