The solution lets users prove they are over a certain age without revealing their name, exact birth date, or full identity document. To prevent credentials from being copied, cloned, or reused by modified clients, the project relies on keys stored in protected hardware like Android TEE, StrongBox, or Apple’s Secure Enclave.

The project’s technical specification requires age verification apps to use native cryptographic hardware when available. However, stricter checks like root detection, Google Play Integrity, and Apple App Attest are not universally mandated by the reference implementation and may be left to individual deployers.

So there’s a chance that GrapheneOS will be supported. I mean, we can still decompile the app, modify it and then repackage it. Or someone will make a patcher app.