Privacy Policy

Last updated: February 8, 2026

At TweetReplier, we take your privacy seriously. This policy explains what data we collect, how we use it, and your rights.

What We Collect

Information You Provide

• Account Information: Email address, name (if provided via Google OAuth)
• User Profile: Writing style preferences, topics of interest, tone settings
• API Keys: OpenRouter API key (stored locally in your browser)

Automatically Collected Information

• Usage Data: Number of replies generated, tones used, creator styles selected
• Device Information: Device fingerprint for session management (max 3 concurrent sessions)
• IP Address: For security and fraud prevention
• Generated Content: Replies you generate (for authenticated users only, used for quality analysis)

How We Use Your Data

We use collected information to:

• Provide and improve TweetReplier services
• Personalize reply generation based on your preferences
• Analyze reply quality and improve AI outputs
• Prevent abuse and enforce usage limits
• Process payments and manage subscriptions
• Send important service updates (no marketing emails without consent)

Data Storage & Security

Local Storage: Your OpenRouter API key and preferences are stored locally in your browser using Chrome's sync storage. We never see or store your API key on our servers.

Server Storage: Account data, usage statistics, and generated replies (for authenticated users) are stored securely on our servers hosted by Railway.

Security Measures: We use industry-standard encryption, secure authentication (JWT), and regular security audits.

Third-Party Services

TweetReplier integrates with:

• OpenRouter: AI model API for reply generation (when using your own API key)
• Google OAuth: For optional account sign-in
• Polar: Payment processing for subscriptions
• Railway: Backend hosting infrastructure

These services have their own privacy policies. We share only the minimum data necessary for service operation.

Data Retention

• Account Data: Retained while your account is active
• Generated Replies: Stored for quality analysis, anonymized after 90 days
• Usage Stats: Retained for billing and service improvement
• Deleted Accounts: All personal data deleted within 30 days of account deletion

Your Rights

You have the right to:

• Access your personal data
• Correct inaccurate data
• Request data deletion
• Export your data
• Opt out of quality analysis (disables reply logging)

To exercise these rights, contact us at privacy@tweetreplier.com

Children's Privacy

TweetReplier is not intended for users under 13 years old. We do not knowingly collect data from children.

Changes to This Policy

We may update this policy from time to time. We'll notify users of significant changes via email or extension notification.

Contact Us

Questions about this policy? Email us at privacy@tweetreplier.com

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