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Auditor is an Android app that verifies the integrity and authenticity of your device using hardware-backed cryptographic attestation. It can run local peer-to-peer checks via QR codes or schedule remote server-based verification with email alerts.
Key facts
Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.
| Field | Value |
|---|---|
| Repository | GrapheneOS/Auditor |
| Owner | GrapheneOS |
| Primary language | Java |
| License | MIT — OSI-approved |
| Stars | 673 |
| Forks | 110 |
| Open issues | 47 |
| Latest release | 92 (2026-05-30) |
| Last updated | 2026-06-26 |
| Source | https://github.com/GrapheneOS/Auditor |
What Auditor is
A Java-based Android application leveraging hardware-backed keys (StrongBox), verified boot, and secure boot chains to perform local and remote attestation. Chains hardware trust to software integrity checks and supports both QR-code-based peer verification and optional server-side scheduled attestation.
Get the Auditor source
Clone the repository and explore it locally.
git clone https://github.com/GrapheneOS/Auditor.gitcd Auditor# follow the project's README for install & configurationNeed it deployed, integrated, or customized instead? DEV.co ships production installs.
Best use cases
Implementation considerations
- Hardware attestation availability varies by device, OEM, and Android version; validation on target device models is required before deployment.
- QR-code-based peer verification is manual; scale beyond small teams requires automation or the optional server backend.
- Server-based attestation requires infrastructure setup and email configuration; vendor/hosting choice affects alerting reliability and latency.
- App requires appropriate Android permissions and may conflict with MDM policies if device management is already enforced.
- Attestation chain verification is only as strong as the underlying hardware; compromised bootloader or firmware bypasses app-level guarantees.
When to avoid it — and what to weigh
- Non-Android or Non-Hardware-Backed Platforms — Auditor requires Android and hardware attestation support (StrongBox, Titan, or equivalent). Devices without secure enclaves cannot use core functionality.
- Centralized Management Without Server Commitment — If you need large-scale fleet attestation with zero server infrastructure, peer-to-peer QR verification does not scale; the optional server component is required.
- Require Pre-Built Commercial Support or SLAs — This is an open-source project without stated commercial support, SLAs, or guaranteed response times. Maintenance is community-driven.
- Non-GrapheneOS Ecosystems Primarily — While compatible with standard Android, the project is optimized for GrapheneOS. Compatibility and feature parity on other ROM distributions requires separate validation.
License & commercial use
MIT License. Permissive OSI-approved license allowing modification and redistribution with attribution.
MIT is permissive and generally suitable for commercial products; however, consult legal counsel on your specific use case (e.g., bundling in a commercial product, liability disclaimers). No commercial support, warranty, or licensing guarantees are stated in the provided data.
DEV.co evaluation signals
Editorial assessment — not user reviews. Directional, with an explicit confidence level.
| Signal | Assessment |
|---|---|
| Maintenance | Active |
| Documentation | Limited |
| License clarity | Clear |
| Deployment complexity | Moderate |
| DEV.co fit | Possible |
| Assessment confidence | Medium |
Auditor relies on hardware-backed attestation chains and secure boot. Effectiveness depends on device bootloader integrity, firmware updates, and absence of hardware exploits. App-level verification cannot detect compromises below the attestation root of trust. Remote server attestation introduces network and endpoint security: ensure TLS, certificate pinning, and server security hardening. QR verification is replay-resistant if implemented correctly; review protocol details independently.
Alternatives to consider
Google Play Integrity API
Cloud-based attestation from Google; centralized, no self-hosted infrastructure. Trade-off: less transparency, dependent on Google infrastructure and policies.
Samsung Knox Vault / Qualcomm Snapdragon Secure Processing Unit
OEM-specific hardware security modules with vendor tooling. Trade-off: OEM lock-in, less open-source control, may not support peer verification workflows.
Custom Attestation Using Android Attestation API
Build in-house attestation if you need full control and tight integration with existing infrastructure. Trade-off: significant engineering effort, maintainability burden, slower iteration.
Build on Auditor with DEV.co software developers
Review the full documentation at attestation.app/about. Validate hardware compatibility on your target devices. For custom integration or server deployment support, contact our technical team.
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Auditor FAQ
Does Auditor work on devices without StrongBox?
Is the server-based attestation optional?
Can I use Auditor in a commercial product?
What is the deployment effort for the server component?
Work with a software development agency
If Auditor is on your shortlist, DEV.co can build around it. We are a custom software development company covering architecture, implementation, and production operations for open-source observability workloads.
Evaluate Auditor for Your Device Security Needs
Review the full documentation at attestation.app/about. Validate hardware compatibility on your target devices. For custom integration or server deployment support, contact our technical team.