| Operating system | Developer | First release | License |
|---|---|---|---|
| IOS 10 | Apple Inc. | 2016 | end-user license agreement |
| IOS 11 | Apple Inc. | — | end-user license agreement |
| IOS 13 | Apple Inc. | 2019 | proprietary license |
| IOS 14 | Apple Inc. | 2020 | — |
| IOS 15 | Apple Inc. | — | — |
| IOS 9 | Apple Inc. | 2015 | end-user license agreement |