Here's how to unlock it

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What you'll need: An iPhone 8 or newer running the latest version of iOS.

1.

Go to Accessibility in Settings
Start by opening the Settings app, then scroll down and tap Accessibility.

This is where Apple hides Back Tap, because it was originally designed as an assistive feature, though it's useful for anyone.

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Scroll to the bottom and select Back Tap.

Now you can start customizing the back button on your iPhone.

4.

Choose Double Tap or Triple Tap
You'll see two options: Double Tap and Triple Tap.

You can use one or both, and assign different actions to them.

There should be a long list of actions available under Double Tap and Triple Tap, including system controls, accessibility features, and even some apps.

Pick one, and it'll instantly be active.

Just tap the back of your phone to trigger it.

Tip: Tap directly on the Apple logo (or near the center of the back of your phone if you're using a case), and be quick and deliberate with your taps.

Back Tap supports a wide range of actions, but the best setup really depends on how you use your phone.

At a basic level, you can control system features, like opening Control Center and Notification Center.

You can also trigger a screenshot, lock rotation, or adjust volume.

Accessibility features are available as well, including VoiceOver, Zoom, AssistiveTouch, and Background Sounds.

Popular apps are supported, too, including ChatGPT , Snapchat, Amazon, and more.

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You get both double tap and triple tap, so you can use them differently.

For example, you might use double tap for something you do constantly, like opening Snapchat, and triple tap for something less frequent, like triggering a shortcut.

Will Back Tap work with the case on my iPhone?

Yes.

It works through most cases , including thicker ones, though sensitivity can vary slightly.

If you have a PopSocket or another grip covering the back of your phone, however, you likely won't be able to trigger Back Tap.

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Why is Back Tap not working for me?

Your taps need to be quick and deliberate.

Slower taps, or tapping too lightly, can prevent Back Tap from triggering.

Is there any feedback when Back Tap activates?

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