Privacy Policy

Last updated: March 30, 2026

LangSyncer ("we", "us", or "our") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our translation management service.

1. Information We Collect

1.1 Information You Provide

We collect information you directly provide to us:

• Account Information: Name, email address, password, and company name when you register
• Payment Information: Billing address and payment details (processed securely by Stripe)
• Translation Content: Translation keys, values, and associated metadata you upload
• Communications: Information you provide when contacting support or providing feedback

1.2 Information Collected Automatically

When you use our Service, we automatically collect:

• Usage Data: Features used, actions taken, timestamps, and frequency of use
• Device Information: Browser type, operating system, device type, and screen resolution
• Log Data: IP address, access times, pages viewed, and referring URLs
• API Usage: API calls, endpoints accessed, and response times

1.3 Cookies and Tracking Technologies

We use cookies and similar technologies to:

• Essential Cookies: Maintain your session and remember your preferences
• Analytics Cookies: Understand how you use our Service (with your consent)

You can control cookies through your browser settings. Disabling essential cookies may affect Service functionality.

2. How We Use Your Information

We use collected information to:

• Provide, maintain, and improve the Service
• Process transactions and send related information
• Send technical notices, updates, and security alerts
• Respond to your comments, questions, and support requests
• Monitor and analyze usage trends and preferences
• Detect, investigate, and prevent fraudulent or unauthorized activity
• Personalize and improve your experience
• Comply with legal obligations

3. AI Translation Processing

3.1 How AI Translation Works

When you use our AI translation features:

• Your source text is sent to third-party AI providers (OpenAI, DeepL) for translation
• We do not use your translations to train AI models
• Translations are processed in accordance with our providers' privacy policies
• You should not submit sensitive personal data for AI translation

3.2 AI Content Disclaimer

LangSyncer does not control, review, or assume responsibility for the content of AI-generated translations. AI translations are machine-generated suggestions that may:

• Contain errors, inaccuracies, or mistranslations
• Produce contextually or culturally inappropriate results
• Fail to capture nuance, technical terminology, or specialized language
• Generate content that differs from your intended meaning

We strongly recommend human review of all AI-generated content before publication or use in production environments. See our Terms of Service for complete details on AI translation disclaimers.

3.3 Your Responsibility

You are solely responsible for:

• The content you submit for translation
• Reviewing and validating all translated content
• Ensuring translations meet your quality and accuracy requirements
• Any consequences arising from the use of unreviewed translations

3.4 AI Translation Data Retention

Regarding AI translation processing logs:

• Source text: Temporarily processed and not permanently stored by LangSyncer after translation completion
• Translation results: Stored as part of your project data until you delete them or close your account
• Usage metadata: AI quota usage, timestamps, and language pairs are retained for billing and analytics purposes
• Third-party retention: AI providers (OpenAI, DeepL) may retain data according to their own privacy policies

We do not log or store the full content of AI translation requests beyond what is necessary to provide the Service.

4. Information Sharing

We do not sell your personal information. We may share information with:

4.1 Service Providers (Subprocessors)

We use the following third-party service providers to operate the Service. Each processes data only as necessary to provide their specific service:

This list may be updated periodically. Material changes to subprocessors will be communicated via email to account holders.

4.2 Legal Requirements

We may disclose information if required by law, court order, or government request, or to protect our rights, property, or safety.

4.3 Business Transfers

In the event of a merger, acquisition, or sale of assets, your information may be transferred. We will notify you of any such change.

5. Data Retention

We retain your information for as long as your account is active or as needed to provide services. After account deletion:

• Account data is deleted within 30 days
• Translation content is deleted within 30 days
• Backup data is purged within 90 days
• Anonymized analytics may be retained indefinitely

6. Data Security

We implement appropriate security measures including:

• Encryption of data in transit (TLS/SSL) and at rest
• Regular security assessments and updates
• Access controls and authentication requirements
• Secure password hashing
• Regular backups and disaster recovery procedures

However, no method of transmission over the Internet is 100% secure. We cannot guarantee absolute security.

7. Your Rights (GDPR)

If you are in the European Economic Area (EEA), you have the right to:

• Access: Request a copy of your personal data
• Rectification: Correct inaccurate or incomplete data
• Erasure: Request deletion of your data ("right to be forgotten")
• Restriction: Request we limit how we use your data
• Portability: Receive your data in a structured, machine-readable format
• Objection: Object to certain processing of your data
• Withdraw Consent: Withdraw consent at any time where processing is based on consent

To exercise these rights, contact us at the email below. We will respond within 30 days.

8. International Data Transfers

Your information may be transferred to and processed in countries other than your own. We ensure appropriate safeguards are in place, including:

• Standard Contractual Clauses approved by the European Commission
• Data processing agreements with our service providers

9. Children's Privacy

Our Service is not intended for children under 16. We do not knowingly collect personal information from children. If you believe we have collected information from a child, please contact us immediately.

10. Third-Party Links

Our Service may contain links to third-party websites. We are not responsible for their privacy practices. We encourage you to review their privacy policies.

11. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes by:

• Posting the new policy on this page
• Updating the "Last updated" date
• Sending an email notification for material changes

12. Contact Us

For questions about this Privacy Policy or to exercise your rights, contact us:

• Email: privacy@langsyncer.com
• Data Protection Officer: dpo@langsyncer.com

13. Supervisory Authority

If you are in the EEA and believe we have not adequately addressed your concerns, you have the right to lodge a complaint with your local data protection supervisory authority.

Cookie Policy

This section explains how we use cookies on LangSyncer.

What Are Cookies?

Cookies are small text files stored on your device when you visit a website. They help websites remember your preferences and understand how you use the site.

Cookies We Use

Analytics Cookies (with consent)

We use Google Tag Manager to manage analytics scripts. When you consent to analytics cookies, the following may be set:

Analytics cookies are only set after you provide consent through our cookie banner.

Managing Cookies

You can control cookies through your browser settings. Note that disabling essential cookies may affect your ability to use the Service.

By using LangSyncer, you acknowledge that you have read and understood this Privacy Policy.