Android System Key Verifier

Download Android System Key Verifier APK

com.google.android.contactkeys · by Google LLC

Latest Version: 1.219.791156583 • Updated: Dec 21, 2025

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About Android System Key Verifier

The Android System Key Verifier is a system service designed to improve the security of end-to-end encrypted (E2EE) messaging apps. It provides a unified system for public key verification across different apps. It lets developers store end-to-end encryption keys. It lets users verify that their apps are using the correct public keys when communicating, confirming that users are communicating with the person they intended to message.

Frequently Asked Questions

Yes. Every Android System Key Verifier APK on APK.now is automatically scanned and the cryptographic signature is verified against the original publisher's certificate (Google LLC). Files that fail verification are removed before they ever reach the catalog.

Enable 'Install from unknown sources' for your browser (or the file manager you use to open the APK) under Settings → Apps → Special access. Tap the downloaded Android System Key Verifier APK, confirm the prompts, and Android installs it just like any app from the Play Store.

The latest Android System Key Verifier version available on APK.now is 1.219.791156583. We track new releases from Google LLC continuously and add them to the catalog as soon as they pass verification.

Yes — every Android System Key Verifier APK and every version on APK.now is free to download. We never gate downloads behind sign-up, surveys, or paywalls.

APK.now keeps a full archive of every Android System Key Verifier release, including older versions that the Play Store has already replaced. The APKs work on devices without Google Play Services (Huawei, GrapheneOS, Amazon Fire) and are signature-verified so you can be confident the file is genuine.