| Operating system | Developer | First release | License |
|---|---|---|---|
| IOS 10 | Apple Inc. | 2016 | end-user license agreement |
| IOS 11 | Apple Inc. | — | end-user license agreement |
| IOS 8 | Apple Inc. | 2014 | Apple Public Source License |
| IOS 9 | Apple Inc. | 2015 | end-user license agreement |
| IPadOS 15 | Apple Inc. | — | — |