iOS Minor Versions Market Share in 2025

This chart shows the top minor versions of the iOS operating system for each week in the last year. Values are percentages.

For the purposes of this survey, iOS also includes iPadOS, so this data is from iPads as well as iPhones. However, other spin-offs of iOS such as tvOS or watchOS are not included in this chart.

This chart is interactive. Click legend entries to show and hide them.

Some interesting observations are:

• As of end of January 2025 the share of iOS 18.3 was becoming relevant at over 5%. At the end of February it was clearly the version with the highest share at 57.72% and the rise has continued to 78.32% as of end of March.
• Digging deeper it could be noticed that the security update provided with iOS 18.3.2 in March has been adopted quickly with that version representing over 90% of iOS 18.3 at the end of March.
• iOS 18.4 was starting to show up with 4.64% as of end of March.

Resources

We invite you to check out the iOS major versions for a more general overview on the current situation. We update our charts monthly.

Wondering when to drop support for older iOS or Android versions? This article breaks down strategies like requiring the latest OS, balancing compatibility, or using user data to decide. Discover how tools like TelemetryDeck can help you make data-driven decisions—read it here:

Please note information regarding biases in the TelemetryDeck data set.

TelemetryDeck shares these excerpts of its analytics data set because we love the community of developers and makers. The data is copyright of TelemetryDeck and is not to be reshared or republished without permission.