| # | System | Family | Year | Value |
|---|---|---|---|---|
| 1 | iOS | iOS | 2007 | 182 releases |
| 2 | ChromeOS | ChromeOS | 2012 | 97 releases |
| 3 | Debian | — | 1993 | 88 releases |
| 4 | Windows 11 | Microsoft Windows | 2021 | 88 releases |
| 5 | iPadOS | iPadOS | 2019 | 82 releases |
| 6 | watchOS | watchOS | 2015 | 70 releases |
| 7 | Windows 10 | Microsoft Windows | 2015 | 66 releases |
| 8 | OpenBSD | — | 1995 | 63 releases |
| 9 | /e/OS | /e/OS | 2018 | 60 releases |
| 10 | macOS | macOS | 2001 | 38 releases |
| 11 | Manjaro | — | 2011 | 37 releases |
| 12 | NetBSD | — | 1993 | 36 releases |
| 13 | Android | Android | 2008 | 30 releases |
| 14 | Nura | — | 2016 | 30 releases |
| 15 | iOS 15 | iOS | 2021 | 30 releases |
| 16 | Ubuntu Touch | Ubuntu Touch | 2013 | 28 releases |
| 17 | macOS Big Sur | macOS | 2020 | 25 releases |
| 18 | iOS 16 | iOS | 2022 | 23 releases |
| 19 | iOS 18 | iOS | 2024 | 23 releases |
| 20 | iOS 17 | iOS | 2023 | 20 releases |
| 21 | Sailfish OS | Sailfish OS | 2013 | 19 releases |
| 22 | iOS 14 | iOS | 2020 | 16 releases |
| 23 | iOS 26 | iOS | 2025 | 15 releases |
| 24 | LineageOS | — | 2016 | 13 releases |
| 25 | Microsoft Windows | Microsoft Windows | 1985 | 13 releases |
| 26 | watchOS 10 | watchOS | 2023 | 12 releases |
| 27 | Firefox OS | Firefox OS | 2013 | 11 releases |
| 28 | macOS Tahoe | macOS | 2025 | 11 releases |
| 29 | iOS 12 | iOS | 2020 | 10 releases |
| 30 | Android Honeycomb | Android | 2011 | 9 releases |
| 31 | Wear OS | Wear OS | 2014 | 9 releases |
| 32 | Android 15 | Android | 2024 | 8 releases |
| 33 | Android 14 | Android | 2023 | 7 releases |
| 34 | Android Jelly Bean | Android | 2012 | 7 releases |
| 35 | MIUI | MIUI | 2010 | 7 releases |
| 36 | Solaris | — | 1991 | 7 releases |
| 37 | Tizen | Tizen | 2012 | 7 releases |
| 38 | iOS 13 | iOS | 2019 | 7 releases |
| 39 | iPadOS 16 | iPadOS | 2022 | 7 releases |
| 40 | Android Ice Cream Sandwich | Android | 2011 | 6 releases |
| 41 | One UI | One UI | 2018 | 6 releases |
| 42 | watchOS 2 | watchOS | 2015 | 6 releases |
| 43 | watchOS 3 | watchOS | 2016 | 6 releases |
| 44 | watchOS 4 | watchOS | 2017 | 6 releases |
| 45 | AmigaOS | — | 1985 | 5 releases |
| 46 | Android 17 | Android | 2026 | 5 releases |
| 47 | Android KitKat | Android | 2013 | 5 releases |
| 48 | Android Lollipop | Android | 2014 | 5 releases |
| 49 | EXOS | — | 1983 | 5 releases |
| 50 | MeeGo | — | 2010 | 5 releases |