Its so-called Privacy Sandbox project aims to curb the amount of user data that advertisers can gather.
Rival Apple now forces app developers to ask permission from users before tracking them.
The news will be a blow to firms like Meta, which rely on putting their code on apps to track consumer behaviour.
Meta said this month that Apple's changes would cost it $10bn (£7.3bn) this year. Google's Android operating system is used by about 85% of smartphone owners worldwide.