Privacy Policy

HumanMeter ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application and related services.

Information We Collect

Information You Provide

• Content URLs: When you scan content via link, we receive the URL you paste. We keep that URL with your scan record so your result history and any receipt you create stay accurate.
• Uploaded Media: When you upload a photo, video, or voice recording, the file is sent to our servers for analysis and the original upload is deleted as soon as analysis finishes. We keep up to three low-resolution, blurred still frames per scan so your result and any receipt you create can show what was analyzed.
• Scanned Text: Text you submit for analysis is sent to our servers for scoring and is not saved to our database.
• Purchase Information: Purchases are processed by Apple (App Store), Google (Play Store), or Stripe (web). We receive confirmation and subscription status only -- never your card or payment details.

Automatically Collected Information

• Device Identifier: A random anonymous ID to track your credit balance and free scan usage across sessions.
• IP Address: Recorded alongside scan and purchase events to detect abuse and credit fraud.
• Usage Analytics: We use Firebase Analytics to understand how users interact with the app (screens viewed, features used, scan counts, Trust Gym participation).
• Crash Reports: If the app crashes, we receive anonymous diagnostic information to fix bugs.

ProofCam and On-Device Processing

• ProofCam: When you use ProofCam, all capture and initial processing occurs entirely on your device. Only the media you choose to scan is transmitted to our servers for analysis.
• On-Device Data: Scan history, Trust Gym progress, and credit balances are stored locally on your device.

How We Use Your Information

• To provide AI detection analysis services for photos, videos, and voices
• To process in-app purchases and manage credit balances
• To generate Proof Pack verification receipts with HMAC-signed hashes
• To deliver Trust Gym challenges and track your accuracy progress
• To improve the app experience and detection accuracy
• To fix bugs and technical issues

Proof Pack and Verification Receipts

When you generate a Proof Pack, we create a cryptographic receipt containing the AI Score, timestamp, and an HMAC-signed hash. This receipt verifies that the analysis was performed by HumanMeter. Proof Pack receipts do not contain the original content -- only the verification metadata. When you share a Proof Pack, the recipient can verify its authenticity without accessing your original media.

Receipts are stored on our servers, not only on your device, so that a link you share keeps working. If you choose to share a result, we publish a page on humanmeter.app showing the score, verdict band, and summary explanation. Anyone with that link can view it. The page does not include your uploaded media. Sharing is always your choice -- results are never published unless you share them.

Credit System Data

• Credit Balance: Held on our servers against your anonymous device ID, and cached on your device
• Purchase History: Apple, Google, and Stripe maintain your payment records; we store the purchase confirmation and subscription status needed to grant credits
• Earned Credits: Credits earned through Trust Gym challenges, referrals, or sharing are recorded on our servers against your anonymous device ID
• Free Scan Usage: Daily free scan counts reset automatically and are tracked via your anonymous device identifier

Third-Party Services

We use the following third-party services:

• Firebase Analytics (Google): For anonymous usage analytics. Google Privacy Policy
• Google Gemini API: To analyze media and text for AI-generation signals. We use a paid Gemini tier, under which Google does not use content submitted through the API to train its models. Google Privacy Policy
• Apple StoreKit and Google Play Billing: For in-app purchases. Apple Privacy Policy
• Stripe: For purchases made on the web. Stripe Privacy Policy

Data Retention

• Original uploads (photos, videos, voice recordings): Deleted as soon as analysis finishes
• Scanned text: Not saved to our database
• Blurred still frames: Up to three per scan, kept with your scan record
• Scan results and the URL you scanned: Kept on our servers so your history, receipts, and any result page you share keep working
• Cached results: A one-way hash of scanned content and its score are cached for 7 days so a repeat scan of the same file returns instantly. The hash cannot be used to reconstruct your content.
• IP address: Kept with event records for abuse prevention
• Verified Receipts: Kept as your purchased record
• Analytics: Retained for up to 14 months by Firebase
• In-app scan history, Trust Gym progress, and credit balance: Held on your device; the authoritative credit balance is also kept on our servers against your anonymous device ID

Data Security

We implement industry-standard security measures including:

• HTTPS encryption for all API communications
• Secure Keychain storage for sensitive data on your device
• HMAC-signed verification for Proof Pack receipt integrity
• On-device processing for ProofCam capture
• No account, email address, or real name is required to use the app

Your Rights

You have the right to:

• Delete your local scan history (in app Settings)
• Delete your Trust Gym progress (in app Settings)
• Request deletion of any data we may have
• Opt out of analytics (contact us)

Children's Privacy

HumanMeter is not intended for children under 13. We do not knowingly collect information from children under 13.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.

Contact Us

If you have questions about this Privacy Policy, please contact us at:

Email: support@humanmeter.app
Website: humanmeter.app