Hello, I am iPhoneOS 1.0, I was released with the iPhone 2g, I came with no App Store, and only came with the basics, Phone, SMS, Photos, Calendar, Camera (could only take pictures), iPod (before Apple Music came around), Safari, Mail, calculator,Voice memos, notes and that’s it, I am the grandfather of all iOS, released in 2007, I am iPhoneOS 1, ask me anything