OneAD for Android isn[SQ]t a widely known or documented advertising SDK or platform. There[SQ]s no readily available information about a specific product or service with that name. It[SQ]s possible :

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It[SQ]s a very niche or internal advertising solution:

Some companies develop proprietary ad platforms for their own apps or a small group of partners.
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The name is slightly different:

There might be a slight variation in the name (e.g., a typo in your search). Try searching for similar terms related to Android advertising.
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It[SQ]s obsolete or discontinued:

The platform may have existed in the past but is no longer in use.

If you encountered this term in a specific context (e.g., an app[SQ]s description, a developer[SQ]s documentation), providing that context might help in identifying what it refers to.