Privacy Policy

Last updated: August 3, 2026

This Privacy Policy explains how Zephyr Translate, operated by zephyrdn.com ("we", "us", or "our"), handles your information. Our core design principle is privacy by default: your documents and data stay on your device.

1. Local-Only Processing

Zephyr Translate is a Windows desktop application that runs entirely on your machine. Your documents, translations, terminology glossaries, and settings are stored only on your local device. The translation process runs locally — we do not upload, store, or process your documents or translation content on any server.

When you connect your own API key (BYOK) to an AI provider such as OpenAI, DeepSeek, or Qwen, the app sends the document content directly to that provider from your machine. Your API key is stored only on your device and never transmitted to us.

2. What We Collect

We collect the minimum necessary to operate and support the service:

• Email address — collected only when you voluntarily activate a free or paid license, used to deliver your license key and purchase confirmation.
• Purchase information — handled by our payment provider Paddle; we do not store your payment card details.
• Anonymous diagnostic data — optional and limited to crash/error reporting; it never includes your documents, translations, or API keys.

3. What We Do NOT Collect

• Your documents or their contents
• Your translations or translation history
• Your terminology glossaries
• Your API keys (they stay on your machine)
• Any browsing or usage tracking across other websites

4. How We Use Your Email

Your email is used solely to issue licenses and send transactional emails (license activation, purchase confirmation, and account support). We do not send marketing emails unless you explicitly opt in, and we never sell or share your email with third parties for their marketing purposes.

5. Payment Processing

Payments for Pro subscriptions and Lifetime licenses are processed by Paddle, a reputable payment provider. Your payment details are handled by Paddle under their own privacy policy. We receive only the transaction confirmation and the email address associated with your purchase.

6. Data Retention

We retain your email and license record only for as long as necessary to provide licenses, process refunds, or comply with legal obligations. You may request deletion of your records at any time by contacting us (Yakovxia@gmail.com), subject to applicable law. Paddle retains payment records in accordance with their own retention policies.

7. Your Rights

Depending on your jurisdiction, you may have the right to:

• Access the personal data we hold about you;
• Request correction or deletion of your data;
• Object to or restrict certain processing;
• Lodge a complaint with your local data protection authority.

To exercise these rights, contact us at Yakovxia@gmail.com.

8. Children's Privacy

Zephyr Translate is not directed to children under 13 (or the applicable minimum age in your jurisdiction). We do not knowingly collect personal information from children.

9. Changes to This Policy

We may update this Privacy Policy from time to time. The latest version will always be published on this page. Material changes will be reflected by the "Last updated" date above.

10. Contact

For any privacy questions, contact us at Yakovxia@gmail.com or via zephyrdn.com.