Native ads
Native ads are ads that match the look and feel of your mobile app's content. Ad units with native ads feature combinatorial ads. For detailed instructions on how to create these ad units, see here.
General recommendations on how to improve the quality of ad units are given in Improving resource quality. Below are some practical tips to help you attract more valuable traffic with native ads.
Placement
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Follow the general placement rules for native ads.
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Place ads at a distance from the main content to prevent accidental clicks.
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Place ads in content apps where they seamlessly integrate into the user experience.
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Don't make the feed fully blend with your app's design — the ad unit should visually stand out.

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Don't add too many ads.

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Don't place ads over control elements or app content so that they don't hinder users from interacting with your app.

Size and layout
Make sure the ad unit layout and dimensions match the ad size, so the image remains properly aligned.

Controls
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Don't place any additional clickable elements.
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The ad unit must not be fully clickable to prevent accidental clicks.
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Don't place custom buttons encouraging users to interact with the ad — only use standard CTA elements provided for this format (if applicable).

Labeling
Comply with the applicable ad labeling rules and don't delete required elements.
