Your iPhone has a secret button on the back – here’s how to unlock it


iPhone 17 Pro

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ZDNET’s key takeaways

  • Back Tap lets you trigger actions with double or triple taps.
  • You can customize it to open apps, controls, or shortcuts.
  • It works on most iPhones and even through many cases.

The iPhone has a button on its back. You can’t see it, but with a double or triple tap on the Apple logo, you can open an app, access a system menu, or launch a shortcut. This feature is called Back Tap, and it’s actually been available since iOS 14. The best part is it’s completely customizable. You can set it to do whatever you want, and change it at any time.

I first tried Back Tap years ago, and it quickly became one of those features I use every day. Instead of swiping through menus or hunting for apps, I just tap the back of my phone. It’s one of the fastest ways to get things done.

How to use Back Tap on iPhone

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

1. Go to Accessibility in Settings

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2. Open the Touch menu

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Scroll to the bottom and select Back Tap. Now you can start customizing the back button on your iPhone.


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3. Select Back Tap

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You’ll see two options: Double Tap and Triple Tap. You can use one or both, and assign different actions to them.


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Choose Double Tap or Triple Tap

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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.


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5. Assign an action

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What can I do with Back Tap?

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.

Also: Your iPhone’s USB-C port is so versatile – 14 features beyond charging

The most powerful option is probably Shortcuts. If you create a custom shortcut, Back Tap can run it instantly. That means you can combine multiple actions into one tap. For example, you could open ChatGPT and start a voice session, or take a screenshot and save it to a specific folder. This is where Back Tap goes from convenient to genuinely useful and fun to customize.

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.

Back Tap shortcuts

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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.

Also: How to turn on Lockdown Mode on iPhone

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?

There is no haptic feedback, but you can enable a banner notification in the Back Tap menu to confirm it has been triggered.

Also: How to free up your iPhone storage almost immediately

How do I turn Back Tap off?

Go back to the Back Tap menu in Settings and set both Double Tap and Triple Tap to “None.”


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Spotify aims to provide a consistent listening experience that uses minimal data. As a result, your audio quality might be less than ideal, especially if you’re using a pair of high-fidelity headphones or high-end speakers. Here’s how to fix that.

Switch audio streaming quality to Very High or Lossless

The default audio streaming quality in both the mobile and desktop Spotify apps is set to Automatic, which usually keeps the audio quality at Normal, which is only 96 Kbps. Even though Spotify uses the Ogg Vorbis codec, which is superior to MP3, OGG files exhibit slight (but noticeable) digital noise, poor bass detail, dull treble, and a narrow soundstage at 96 Kbps.

Even worse, Spotify is aggressive about adjusting the automatic bitrate. Even though 4G is more than fast enough to stream high-quality OGG files, even with a weak signal, Spotify may still drop the quality to Low, which has a bitrate of just 24 Kb/s. You will notice such a sharp drop in quality, even on a pair of bottom-of-the-barrel headphones.

To rectify this, open the Spotify app, tap your user image, open “Settings and privacy,” and tap the “Media Quality” menu. Once there, set Wi-Fi streaming quality and cellular streaming quality to “Very high” or “Lossless.”

I recommend setting cellular streaming quality to Very high and reserving Lossless for Wi-Fi, since lossless streaming is very data-intensive. One hour of streaming lossless files can take up to 1GB of data, as well as a good chunk of your phone’s storage, because Spotify caches files you’re frequently streaming. Besides, you’ll struggle to notice the difference unless you’re listening to music on a wired pair of high-end headphones or speakers; wireless connection just doesn’t have the bandwidth needed to convey the full fidelity of Spotify lossless audio.

You might opt for High quality if you have a capped data plan, but I recommend doing so only if you stream hours upon hours’ worth of music every single day over a cellular network. For instance, I burn through about 8 GB of data per month on average while streaming about two hours of very high-quality music over a cellular network each day.

Illustration of a headphone with various music icons around.


How Audio Compression Works and Why It Can Affect Your Music Quality

Feeling the squeeze when listening to your favorite song?

Set audio download quality to Very high or Lossless

If you tend to download songs and albums for offline listening, you should also set the audio download quality to “Very high” or “Lossless.” This setting is located just under the audio streaming quality section.

The audio download quality menu in Spotify's mobile app.

If you’ve got enough free storage on your phone, opt for the latter, but if you’d rather save storage space, set it to Very high. You’ll hardly hear the difference, but lossless files are about five times larger than the 320 Kb/s OGG files Spotify offers at its Very high quality setting, and they can quickly fill up your phone’s storage.

Adjust video streaming quality at your discretion

The last section of the Media quality menu is Video streaming quality. This sets the quality of video podcasts and music videos available for certain songs. Since I care about neither, I set it to “Very high” on Wi-Fi and “Normal” on cellular, but you should tweak the two options at your discretion because songs sound notably better at higher video streaming quality levels.

If you often watch videos over cellular and have unlimited data, feel free to toggle video quality to very high.

Make sure Data Saver mode is disabled

Even if your audio quality is set to Very high or Lossless, Spotify will switch to low-quality streaming if the app’s Data saver mode is enabled. This option is located in the Data saving and offline menu. Open the menu, then set it to “Always off,” or choose “Automatic” to have Spotify’s Data Saver mode kick in alongside your phone’s Data Saver mode.

You can also enable volume normalization and play around with the built-in equalizer

Spotify logo in the center of the screen with an equalizer in front. Credit: Lucas Gouveia / How-To Geek

Last but not least, there are two additional features you can play with to improve your listening experience. The first is volume normalization, which sets the same loudness for every track you’re listening to. This can be handy because different albums are mastered at different loudness levels, with newer music usually being louder.

Since I’m an album-oriented listener, I keep the option disabled. I can just play an album and set the audio volume accordingly, and I don’t really mind louder songs when listening to playlists, artists, or song radios.

But if you can’t stand one song being quiet and the next rattling the windows, visit the Playback menu, enable “Volume normalization,” and set it to “Quiet” or “Normal.” The “Loud” option can digitally compress files, and neither Spotify nor I recommend using it. This also happens with “Quiet” and “Normal,” since both adjust the decibel level of the master recording for each song, but the compression level is much lower and extremely hard to notice.

Before I end this, I should also mention that you can access the equalizer directly from the Spotify app, where you can fine-tune your music listening experience or pick one of the available equalizer presets. If your phone has a built-in equalizer, Spotify will open it; if it doesn’t, you can use Spotify’s. On my phone (a Samsung Galaxy S21 FE), I can only use One UI’s built-in equalizer.

To open the equalizer, open “Playback,” then hit the “Equalizer” button. Now you can equalize your audio to your heart’s content.


Adjusting just a few settings can have a drastic impact on your Spotify listening experience. If you aren’t satisfied with Spotify’s sound quality, make sure to adjust the audio before jumping ship. You should also check the sound quality settings from time to time, as Spotify can reset them during app updates.​​​​​​​

Three phones with a Spotify screen and the logo in the center.


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