Bytelify

What Version of iOS Do I Have

See which iOS version your browser reports, read from your user agent.

Runs in your browser, nothing sent
what-version-of-ios-do-i-have

Nothing is sent to a server; this is read and shown entirely in your browser.

Need the opposite? What Operating System Do I Have

What is What Version of iOS Do I Have?

Reads the iOS version straight out of your browser's user agent string, a quick check without opening Settings → General → About. Useful for confirming whether your device supports an app or web feature, or for pasting your version into a bug report. Detection runs entirely on your device: the version comes from `navigator.userAgent`, parsed by JavaScript in your browser, and nothing is sent anywhere. This also works for iPadOS, since iPads on modern iPadOS releases still identify as iOS-family devices in most browsers' user agent strings.

How to Use This Tool

  1. 1

    Open This Page on Your Device: Visit this page in a browser on the iPhone or iPad you want to check.

  2. 2

    Read the Detected Version: The iOS/iPadOS version, parsed from the user agent string, appears automatically.

How It Works

iOS devices include a version token like `OS 17_4` (using underscores rather than dots) inside `navigator.userAgent`, and this tool looks for that pattern and displays it in the more familiar dotted format. It runs entirely in your browser; nothing about your device is sent to a server.

Why This Might Be Wrong or Say "Unknown"

The user agent is self-reported by the browser, not verified by Apple or this site. A wrong or missing result can happen because: you're on a device that isn't an iPhone or iPad; Safari (and by extension every iOS browser, since Apple requires them to use its WebKit engine) has long been known for freezing or limiting version detail in its user agent for privacy reasons; a browser is deliberately sending a different platform's identifying tokens for site compatibility; or you opened the page in an in-app browser from a social media app, which often reports a generic or reduced user agent instead of the full iOS-identifying one.

Common Use Cases

Checking whether your iPhone or iPad meets an app or website's minimum iOS version before updating or troubleshooting, or including the version in a support request without navigating to Settings.

FAQs

Frequently Asked Questions

Common questions about What Version of iOS Do I Have.

Either you're not on an iPhone/iPad, or your browser sends a generic user agent for privacy, which is increasingly common.

Both. iPads typically report an iOS-family version string in the same way iPhones do, so this tool detects either.

No, the version is read from your browser's user agent locally and never transmitted to a server.

Yes, Bytelify's What Version of iOS Do I Have tool is free with no account or sign-up required.