Privacy Policy

Last updated: November 1, 2026

HumanizeThisAI ("we," "our," or "us") operates the website humanizethisai.com and related services (the "Service"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Service. By using the Service, you consent to the data practices described in this policy.

1. Information We Collect

1.1 Information You Provide

  • Account Information: When you create an account via Google OAuth, we receive your name, email address, and profile picture from Google.
  • Payment Information: Payment processing is handled by Stripe. We store your Stripe customer ID and subscription status but do not store full credit card numbers on our servers.
  • Support Communications: Content you submit through our support ticket system, feature request board, or direct email correspondence.
  • Text Content: Text you submit for humanization or detection, and the results we return. What we keep, and for how long, depends on whether you are signed in. See Section 4 for details.

1.2 Information Collected Automatically

  • IP Address: Collected for security, fraud prevention, and approximate geolocation purposes.
  • Country and City: Derived from your IP address for analytics and localization.
  • Browser and Device Information: Browser type, operating system, device type, screen resolution, and language settings.
  • Referring URL: The page you visited before arriving at our Service.
  • Usage Data: Pages visited, features used, time on platform, interactions, and click events via PostHog analytics.
  • Device Fingerprint: For fraud prevention and free tier abuse detection, we collect a device fingerprint composed of:
    • Canvas rendering characteristics
    • WebGL renderer and vendor data
    • Audio context properties
    • Installed font detection
    • Screen properties (resolution, color depth, pixel depth)
    • Timezone and language settings
    • Platform, hardware concurrency, and device memory
    • Touch support capability and Do Not Track setting

    This fingerprint is stored as a cryptographic hash and cannot be reverse-engineered to identify you personally. It is used solely to detect multi-account abuse and enforce free tier limits.

1.3 Information from Third Parties

  • Google: Name, email address, and profile picture via Google OAuth.
  • Stripe: Payment status, subscription events, and transaction metadata.
  • Referral Data: If you were referred by another user, we record the referral relationship.

2. How We Use Your Information

We use the information we collect to:

  • Provide, maintain, and improve the Service
  • Process payments and manage subscriptions
  • Prevent fraud, abuse, and unauthorized access
  • Enforce free tier usage limits using device fingerprinting
  • Send transactional emails (receipts, usage alerts, subscription updates, support replies)
  • Analyze usage patterns to improve user experience (PostHog analytics)
  • Respond to support inquiries and feature requests
  • Detect and address technical issues
  • Comply with legal obligations

3. Information Sharing and Disclosure

We do not sell, rent, or trade your personal information. We share information only in the following circumstances:

  • Service Providers: Third-party providers who assist in operating the Service, listed in Section 6 below.
  • Legal Requirements: If required by law, court order, or governmental authority, or to protect our rights, safety, or property.
  • Business Transfers: In the event of a merger, acquisition, reorganization, or sale of assets, your information may be transferred as part of the transaction.
  • Fraud Prevention: We may share device fingerprint data and IP information with fraud prevention services to detect and prevent abuse.

4. Text Processing and Data Retention

4.1 Text Processing

What Happens to Your Text

  • Without an account: Text you humanize on the homepage or run through our free tools without signing in is processed to produce your result and is not saved to any history or result store.
  • Signed in: When you humanize text while signed in, we save the original text and the humanized output to your account history, together with the settings and AI scores for that run. Your dashboard shows history for your plan's window (7 days on Free and Starter, 30 days on Creator, unlimited on Unlimited), and we keep up to your 200 most recent entries. You can delete history entries at any time, and deleting your account deletes them.
  • Results kept for retries: For signed-in humanize requests, Deep Scan requests, and developer API requests, we store the result (the humanized text, or the detection result including the sentences it scored) for 7 days so a retried request returns the same response. These results are then deleted automatically.
  • Developer API: We do not keep a history of API requests. API usage logs record word counts, mode, and tone, not your text.
  • Logs: Our request logs record word counts and a one-way hash of the text, not the text itself.
  • In-browser tools: The AI detector's basic scan and our browser-based writing tools run on your device. That text is not sent to us.
  • AI model providers: To generate a rewrite, a tool result, or a Deep Scan, we send your text to the third-party AI model providers listed in Section 6, which process it under their own terms.
  • We do NOT use your submitted content to train AI models, and we do not sell it.

4.2 Data Retention Timelines

Data TypeRetention Period
Humanization history (original and humanized text)Up to your 200 most recent entries, until you delete them or your account
Request results (humanized text, Deep Scan and API results)7 days
Text submitted without an accountNot saved
Account dataActive account + 30 days after deletion request
Payment records7 years (tax and legal compliance)
Usage analytics24 months, then anonymized
Device fingerprints24 months from last activity
Support tickets36 months after resolution
IP addresses12 months
Billing event logs7 years (tax and legal compliance)

5. Cookies, Tracking, and Local Storage

5.1 Cookies We Set

CookiePurposeExpiryType
htai_fpDevice fingerprint hash for fraud prevention10 yearsEssential
htai_free_usedFree tier usage tracking10 yearsEssential
sb-access-tokenAuthentication session1 hourEssential
sb-refresh-tokenSession refresh24 hoursEssential

5.2 Local Storage

We use browser localStorage and sessionStorage for the following purposes:

  • htai_fp / htai_fp_ts — Fingerprint backup and timestamp
  • htai_free_used / htai_free_used_ts: Free plan usage flag and timestamp
  • hta_history, hta_custom_tones, hta_templates, hta_preferences: a copy of your dashboard history, tones, templates, and settings on your device, so the dashboard loads quickly
  • humanize_pending_text — Temporarily stores text during checkout flow (cleared after use)
  • humanize_auto_trigger — Auto-humanize flag after checkout (cleared after use)

5.3 Third-Party Analytics

We use PostHog for product analytics. PostHog may set its own cookies and collect data about your interactions with the Service. For more information, see PostHog's Privacy Policy.

5.4 Do Not Track

We currently do not alter our data collection practices in response to Do Not Track browser signals. We do detect the Do Not Track setting as one component of device fingerprinting for fraud prevention purposes.

6. Third-Party Service Providers

We use the following third-party services to operate the Service:

ProviderPurposeData Processed
SupabaseAuthentication, databaseAccount data, usage data, saved history and request results
StripePayment processingPayment details, subscription data
PostHogProduct analyticsUsage events, device info
SentryError and performance monitoringError reports, stack traces, page and request URLs, browser and device info, and your account ID when a request you made fails on our servers. Request bodies, cookies and sign-in tokens are removed before sending, and we do not send your email or IP address. Session replays of 5% of visits and of visits with an error, with all text masked and all media blocked.
ResendTransactional & broadcast emailEmail address, message content
Hetzner / CloudflareWeb hosting & CDNRequest logs, IP addresses
AI model providers: Google (Gemini), xAI, DeepSeek, and OpenRouter (and the model hosts it routes to)Generating rewrites, tool results, and Deep Scan resultsText you submit for processing
GoogleOAuth authenticationName, email, profile picture

Each provider processes data under their own privacy policies and is bound by applicable data processing obligations.

7. Data Security

We implement appropriate technical and organizational measures to protect your personal information, including:

  • Encryption of data in transit using TLS/SSL
  • Encryption of data at rest via our infrastructure providers (Supabase, Stripe)
  • Secure authentication through OAuth 2.0 (no password storage)
  • Row-level security policies in our database
  • Regular security reviews and monitoring

No method of transmission over the Internet or electronic storage is 100% secure. While we strive to protect your information, we cannot guarantee absolute security.

8. Your Rights and Choices

8.1 All Users

Regardless of your location, you have the right to:

  • Access the personal information we hold about you
  • Correct inaccurate or incomplete information
  • Delete your account and associated personal data
  • Export your data in a portable format (JSON)
  • Opt out of marketing and broadcast emails
  • Control cookies via your browser settings

8.2 Exercising Your Rights

To exercise any of these rights, email us at [email protected]. We will respond within 30 days. We may verify your identity before processing requests to protect your privacy.

9. GDPR Compliance (EEA Users)

If you are located in the European Economic Area (EEA), you have additional rights under the General Data Protection Regulation (GDPR).

Legal Bases for Processing

  • Contract Performance: Processing necessary to provide the Service you have requested (account management, payment processing, text processing, and the history saved to your account).
  • Legitimate Interests: Fraud prevention, security, service improvement, and analytics — where our interests do not override your fundamental rights.
  • Consent: Where required, such as for certain marketing communications.

Additional EEA Rights

  • Right to object to processing based on legitimate interests
  • Right to restrict processing of your personal data
  • Right to lodge a complaint with your local supervisory authority

For GDPR-related inquiries, contact [email protected] with "GDPR Request" in the subject line. Where applicable, international data transfers are conducted pursuant to Standard Contractual Clauses or other appropriate safeguards.

10. CCPA/CPRA Compliance (California Residents)

If you are a California resident, you have specific rights under the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA).

Categories of Personal Information Collected

  • Identifiers: Name, email address, IP address, device fingerprint hash
  • Commercial Information: Subscription details, payment history, word credit usage
  • Internet Activity: Pages visited, features used, interaction data
  • User Content: Text you submit while signed in and the results saved to your account history
  • Geolocation: Country and city (derived from IP)

Your California Rights

  • Right to Know: What personal information we collect, use, and share
  • Right to Delete: Request deletion of your personal information
  • Right to Correct: Request correction of inaccurate information
  • Right to Opt-Out of Sale: We do not sell or share personal information for cross-context behavioral advertising
  • Right to Non-Discrimination: We will not discriminate against you for exercising your rights

To exercise your California rights, email [email protected] with "CCPA Request" in the subject line. We will respond within 45 days.

11. International Data Transfers

Your information may be transferred to and processed in the United States and other countries where our service providers operate. These countries may have different data protection laws than your country of residence.

For users in the EEA/UK, such transfers are conducted pursuant to Standard Contractual Clauses or other appropriate safeguards recognized under applicable data protection law. By using the Service, you acknowledge and consent to the transfer of your information as described in this policy.

12. Children's Privacy

Our Service is not intended for individuals under the age of 13 (or 16 in the European Economic Area). We do not knowingly collect personal information from children. If we become aware that we have collected personal information from a child, we will take steps to delete that information promptly. If you believe a child has provided us with personal information, please contact us at [email protected].

13. Automated Decision-Making

We use automated processing, including device fingerprinting, to make decisions about free tier access and fraud prevention. These automated decisions may affect your ability to create accounts or access certain features.

If you believe an automated decision has affected you unfairly, you may request human review by contacting [email protected].

14. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of material changes by posting the updated policy on this page, updating the "Last updated" date, and where practicable, sending a notification to your email address. Your continued use of the Service after changes take effect constitutes your acceptance of the updated policy.

15. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us:

HumanizeThisAI

Email: [email protected]

Website: humanizethisai.com

For GDPR inquiries, include "GDPR Request" in the subject line.
For CCPA inquiries, include "CCPA Request" in the subject line.