Customizing apps on iPhone is not an easy task. Sure, you can build automations with shortcuts to add color-related filters, enable live captions, play background sounds unique to each app, but that might be too much work. There is. If that doesn’t bother you, move on. However, there are also some per-app settings hidden on the iPhone that can be assigned more easily.
These hidden per-app settings let you assign specific text sizes, bold fonts, button shapes, and other important features to any app on your device. It may not sound like much, but text size can be changed for the current app or for the entire system from the easily accessible Control Center, making it the most common thing iOS users do when navigating from app to app. It’s one of those adjustments.
But you don’t have to do it manually every time. Instead, focus on your iPhone’s accessibility options. These options let you customize the visual aspects of all apps on your iPhone. The home screen also includes the lock screen, a system-wide status bar, and some live captions.
To get started, make sure you’re running iOS 15 or later. Unfortunately, iOS 16, Apple’s latest operating system, does not introduce new per-app options. Maybe iOS 17 will!
Add apps to per-app settings
[設定]–>[アクセシビリティ]–>[アプリごとの設定]Go to. Then tap Add App to open the app picker. Find the app you want and tap it to return to the per-app settings menu. Only one app can be added at a time. So if you’re fine-tuning multiple apps, you can add them all or one by one, depending on your needs.
You can customize almost any app on your iPhone. Hidden apps such as Print Center, Code Scanner, Diagnostics, Field Test, Apple TV Remote are not visible, but Home Screen, Live Caption, Magnifier, Siri, and most of Apple’s regular and all apps is displayed. Third party apps.
Customize settings for each app
To configure an app’s settings, tap its name from the per-app settings list. Most apps let you adjust the following options even if you don’t do anything with the app. Each preference has[デフォルト],[オン],[オフ]there is a choice of[大きいテキスト]for[フォント サイズをデフォルトにリセット]There is a button and a slider to increase or decrease the text size.
- Bold: When on, most of the text displayed on the screen will be bold.
- Large text: Adjust the reading size to your liking.
- Button shape: When on, adds a shape around tappable text-only elements to make them look like buttons.
- On/Off Label: When turned on, the toggle switch adds a common symbol for “on” and “off.” That is, a vertical line when on and a circle when off.
- Reduce transparency: Turn on to reduce transparency to improve contrast and blur some backgrounds for better readability.
- Increase contrast: Turn on to increase the color contrast between the app’s foreground and background colors.
- Distinguish without color: When on, replaces user interface elements that rely on color to convey information with alternate elements.
- Smart reversal: When on, inverts most colors on the display, including some apps that use the dark color style. It does not affect other types of visual media, including photos, videos, and app icons.
- Reduce motion: Turn on to reduce user interface movement, such as the parallax effect seen in home screen icons.
- Prioritize crossfade transitions: When on, reduces the motion of user interface controls that slide when showing and hiding. ([クロスフェード トランジションを優先]will only appear if Reduce Motion is turned on, either system-wide or just the app you’re customizing. ) On the home screen, using the App Switcher applies to all apps on the device.
- Autoplay video preview: When turned on, video previews displayed in the app will automatically play.
Introduced in iOS 16, live captions can only adjust bold and large text. In some cases, you may see apps that shouldn’t be there. For example, iOS 16.2 began laying the groundwork for a new accessibility mode that completely replaces the app’s interface, including the home screen, camera, messages, music, and photos. None live, but I was able to see the ClarityUICameraSettings app, which is still not working in iOS 16.3.
take a look
After enabling all settings on the home screen, you can see the difference below. Obviously the screenshot doesn’t show any changes in the motion functionality.
Interestingly, making home screen text bold affects not only the system-wide status bar, but also home screen quick actions, battery widget percentage, some app icons like calendar, lock screen and notification center notifications, It’s also bold in today’s view. Widgets, app library.
Every time I open another app, everything returns to normal and I don’t see any home screen changes until some of the elements I just mentioned appear.


For apps like Safari, changing some elements, such as text size and thickness, only affects the Safari user interface, not the web page. You can find the web page text size changer by tapping the “AA” button on the search bar.
Remove apps from per-app settings
If you don’t like some of the settings you’ve chosen in the app, you can go back and change them. You can also remove the app from the per-app settings to undo all tweaks. The easiest way is to swipe left until the app disappears from the list (left screenshot below). If swiping isn’t enough, tap the Delete button.or[編集]then the minus sign next to the app, then[削除]Press (bottom center and right screenshots).
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