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I Phone OS 1
This is the first IOS. -
I Phone OS 2 & I Phone 3G
I Phone 3G also released on this date. -
I Phone OS 3
I Phone 3G S also released on this day -
IOS 4
They changed I Phone OS's name to IOS. IOS 4 is the first one to be called IOS. -
IOS 5
It was previewed in public. -
IOS 6
It was previewed Apple World Wide Developers Conference. -
IOS 8
It released with the I Phone 6 and 6 Plus. -
IOS 10
It was released with I Phone 7. -
IOS 7
It was released with the I Phone 5S and 5C. -
IOS 9
It was announced at the Apple Worldwide Conference.
