To support publishers in meeting their duties under the Google EU User Consent Policy, Google offers a Consent SDK. The Consent SDK is an open-source library that provides utility functions for collecting consent from your users. The full source code is available on GitHub.
With the latest release of the Consent SDK (v1.0.5 for Android or v1.0.2 for iOS), the Google-rendered consent form is now compatible with any number of ad technology partners, including the full list of commonly used partners. Apps that update to the latest version of the Consent SDK can start taking advantage of this additional flexibility immediately.
You can find additional documentation for the Consent SDK on the Google Mobile Ads Android and iOS developer docs. If you have any questions about implementing the Consent SDKs, you can reach us on our forum.