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# Customized accessibility content

Customize your apps to deliver accessibility information to your users in measured
portions as they need it.

## Discussion

The Custom Content API is useful for delivering accessibility information from complex
data sets to your users in measured portions. Using this API allows you to leverage
assistive technologies to present only the accessible content your app’s users need,
when they need it.

For example, in a photography app, you may want the user to know the date, time,
orientation, and shutter speed for a photo. However, the user might not always need
that complete set of information. Using the custom content provider in your app lets
the user experience the content in way that’s more appropriate for an assistive technology.

## Topics

### Custom accessibility content

[`AXCustomContent`](/documentation/Accessibility/AXCustomContent)

Objects that define custom content and the timing of its output.

[`AXCustomContentProvider`](/documentation/Accessibility/AXCustomContentProvider)

The interface for customizing the accessibility content.

[`AXCustomContentReturnBlock`](/documentation/Accessibility/AXCustomContentReturnBlock)


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