An example of Apple iPhone and iPad On/Off Switch Labels

Apple’s iPhone and iPad interfaces are attractive, but they can also be difficult to see for some people—especially interface elements such as switches, which change color when activated. Luckily, there’s a way to add “1” and “0” on/off labels to all iOS and iPadOS switches to make them easier to see. Here’s how.

First, open Settings on your iPhone or iPad.

In Settings, tap “Accessibility.”

Tap Accessibility in Settings on iPhone or iPad

In Accessibility, select “Display & Text Size.”

In Accessibility, tap "Display & Text Size."

In “Display & Text Size,” tap the switch beside “On/Off Labels” to switch it on.

In iPhone Settings, flip the switch beside "On/Off Labels" to turn it on.

You’ll notice that as soon as you flip this feature on, all the switches on the screen will include stylized “1” (a plain vertical line) and “0” (a circle) labels, with “1” meaning “on” and “0” meaning “off.” These meet international standards of on/off switch labeling.

Example of iPhone on/off switch labels in iPhone Settings.

This change applies to Apple’s Settings app and any other app that uses the standard system on/off switch design, including third-party apps such as Twitter.

If you need an extra visual boost to make the switches even easier to see, tap the “Increase Contrast” switch on that same page (in “Accessibility” > “Display & Text Size” settings.) When you’re done, leave the Settings app. The changes will be active.

Profile Photo for Benj Edwards Benj Edwards
Benj Edwards is a former Associate Editor for How-To Geek. Now, he is an AI and Machine Learning Reporter for Ars Technica. For over 15 years, he has written about technology and tech history for sites such as The Atlantic, Fast Company, PCMag, PCWorld, Macworld, Ars Technica, and Wired. In 2005, he created Vintage Computing and Gaming, a blog devoted to tech history. He also created The Culture of Tech podcast and regularly contributes to the Retronauts retrogaming podcast.
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