How to Detect Device Name in Safari on iOS 13 While It Doesn't Show the Correct User Agent

How to detect device name in Safari on iOS 13 while it doesn't show the correct user agent?

Indeed, while option change in Settings may be a good solution for the user, as a developer you can't rely on that. It is as weird as to ask the user to not to use dark mode cause your app doesn't support it instead of opt-out of it using plist.

As for me, the most simple way to detect iOS / iPad OS device now:

let isIOS = /iPad|iPhone|iPod/.test(navigator.platform) ||
(navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1)

The first condition is old-fashioned and works with previous versions,
while the second condition works for iPad OS 13 which now identifies itself as:

"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko)"

which by all platform detectors I know is not detected (for now) neither as mobile nor desktop.

So since iPad OS now calls itself Macintosh, but real macs have no multi-touch support, this solution is ideal to detect iPad OS devices which are the only multi-touch "Macintosh" devices in existence.

P.S.
Also, you may want to augment this checkup for IE exclusion from being detected as an iOS device

let isIOS = (/iPad|iPhone|iPod/.test(navigator.platform) ||
(navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1)) &&
!window.MSStream

How to detect iOS 13 on JavaScript?

I would like to advice you against detecting operating system or browser from user agent, since they are susceptible to change more than an API for that does, till a reliable stable standard API lands. I have no idea about when this second part will happen.

However, I can suggest to detect feature instead if in this case it is applicable to you.

You can check if the anchor html element supports download attribute:

"download" in document.createElement("a") // true in supporting browsers false otherwise

That way you can display the appropriate html markup depending on the output for each case.
Something like that may help:

function doesAnchorSupportDownload() {
  return "download" in document.createElement("a")
}
// or in a more generalized way:
function doesSupport(element, attribute) {
  return attribute in document.createElement(element)
}

document.addEventListener("DOMContentLoaded", event => {
  if (doesAnchorSupportDownload()) {
    anchor.setAttribute("display", "inline"); // your anchor with download element. originally display was none. can also be set to another value other than none.
  } else {
    image.setAttribute("display", "inline"); // your alone image element.  originally display was none. can also be set to another value other than none.
  }
});

For example, I use following to detect if I am on an ar quick look supporting browser on iOS:

function doesSupportAnchorRelAR() {
  return document.createElement("a").relList.supports("ar");
}

You can also use techniques documented below:
http://diveinto.html5doctor.com/detect.html#techniques

Detect if device is iOS

Detecting iOS

With iOS 13 iPad both User agent and platform strings are changed and differentiating between iPad and MacOS seems possible, so all answers below needs to take that into account now.

This might be the shortest alternative that also covers iOS 13:

function iOS() {
  return [
    'iPad Simulator',
    'iPhone Simulator',
    'iPod Simulator',
    'iPad',
    'iPhone',
    'iPod'
  ].includes(navigator.platform)
  // iPad on iOS 13 detection
  || (navigator.userAgent.includes("Mac") && "ontouchend" in document)
}

iOS will be either true or false

Worse option: User agent sniffing

User Agent sniffing is more dangerous and problems appear often.

On iPad iOS 13, the user agent is identical with that of a MacOS 13 computer, but if you ignore iPads this might work still for a while:

var iOS = !window.MSStream && /iPad|iPhone|iPod/.test(navigator.userAgent); // fails on iPad iOS 13

The !window.MSStream is to not incorrectly detect IE11, see here and here.

Note: Both navigator.userAgent and navigator.platform can be faked by the user or a browser extension.

Browser extensions to change userAgent or platform exist because websites use too heavy-handed detection and often disable some features even if the user's browser would otherwise be able to use that feature.

To de-escalate this conflict with users it's recommended to detect specifically for each case the exact features that your website needs. Then when the user gets a browser with the needed feature it will already work without additional code changes.

Detecting iOS version

The most common way of detecting the iOS version is by parsing it from the User Agent string. But there is also feature detection inference*;

We know for a fact that history API was introduced in iOS4 - matchMedia API in iOS5 - webAudio API in iOS6 - WebSpeech API in iOS7 and so on.

Note: The following code is not reliable and will break if any of these HTML5 features is deprecated in a newer iOS version. You have been warned!

function iOSversion() {

  if (iOS) { // <-- Use the one here above
    if (window.indexedDB) { return 'iOS 8 and up'; }
    if (window.SpeechSynthesisUtterance) { return 'iOS 7'; }
    if (window.webkitAudioContext) { return 'iOS 6'; }
    if (window.matchMedia) { return 'iOS 5'; }
    if (window.history && 'pushState' in window.history) { return 'iOS 4'; }
    return 'iOS 3 or earlier';
  }

  return 'Not an iOS device';
}

Detect if the user is navigating through the safari mobile browser on iphone

UPDATED:

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Try this, for detecting Safari browser in an iPhone:

var isSafari = !!navigator.userAgent.match(/Version\/[\d\.]+.*Safari/);

It identifies Safari 3.0+ and distinguishes it from Chrome.

JsFiddle

How to detect if user is using an Apple device [Not only iOS] in PHP or Jquery

From Apple’s website:

if (window.ApplePaySession) {
   // The Apple Pay JS API is available.
}

After doing that you can also detect if they have a at least one card provisioned using canMakePaymentsWithActiveCard

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