Your Privacy Matters

We simply want to be the best translation tool for WhatsApp. We do not want to store or sell any data from your messages. At AI Polyglot, protecting your privacy is our top priority.

Privacy Policy

Last Updated: 23 March 2026

1. Information We Collect

Account Information

We collect basic information needed to create and manage your account, including your name, email address, and account preferences. Payment information is processed securely through trusted third-party payment providers. When you sign in with Google or Apple, we receive your name and email address from the identity provider.

Usage Information

We automatically collect certain technical information when you use our service, such as IP address, browser type, device information, and app version.

Message Privacy & Data Storage

AI Polyglot does not permanently store, save, or log any of your message content. Messages are processed in real-time for translation. Translation results are temporarily cached to improve performance and reduce redundant processing; cached translations are automatically deleted after a short period. No original message content is stored beyond this temporary cache. We maintain only essential metrics (such as request response times and error rates) to ensure service quality and performance. All data is encrypted and stored securely, and only encrypted communications are sent to and from our servers.

Browser Extension — Local-Mode Processing

When using Local-Mode in the browser extension, your messages never leave your browser. All translation processing happens locally on your device using downloaded AI models. No message data is sent to our servers or any third-party services. Local-Mode is only available in the browser extension, not the iOS app.

iOS App — WhatsApp Session & Data

When you use the iOS app, you link your WhatsApp account by scanning a QR code. This creates a WhatsApp Web session that is managed on our servers. The app communicates with our servers over an encrypted WebSocket connection (WSS). While the session is active:

Your WhatsApp session credentials are stored securely on our servers to maintain the connection
Messages are relayed through our servers to provide real-time translation via Anthropic's AI models
Message content is not permanently stored — translation results are temporarily cached for performance, then automatically deleted
Your chat list and recent messages are temporarily held in memory to display in the app
Your language preferences are stored locally on your device

When you disconnect your WhatsApp session or delete your account, the server-side session data is removed.

2. How We Use Your Information

Your information is used solely for authentication, providing the translation service, and improving service quality. We do not use your message content for training AI models or for any purpose other than providing the translation you requested.

3. Data Protection

We implement comprehensive security measures to protect your data, including end-to-end encryption, secure API connections for communications. All data is stored encrypted at rest. Our infrastructure uses industry-standard protection measures, and access to sensitive data is strictly controlled. WhatsApp sessions in the iOS app are authenticated using secure bearer tokens and all communication between the app and our servers is encrypted.

4. Data Sharing

We share your information only in specific, limited circumstances: with essential service providers (including Anthropic for cloud translations and Stripe for payment processing), when required by law, during corporate transactions (such as a merger), or with your explicit consent. We never sell your personal data to third parties.

5. Your Privacy Rights

Access and review your personal data
Request corrections to inaccurate information
Delete your account and associated data from the app settings or website dashboard
Disconnect your WhatsApp session at any time, removing session data from our servers
Opt-out of non-essential communications
Withdraw consent for data processing

6. Cookies and Tracking

We use cookies and similar technologies to maintain essential service functionality, ensure security, authenticate users, and analyze service performance. The iOS app uses local storage (UserDefaults) to store your language preferences. You can manage cookie preferences through your browser settings, though this may affect certain features.

7. Third-Party Services

Our service integrates with various third-party providers. Their services are governed by their own privacy policies and terms of service:

Anthropic — Cloud translation processing (browser extension and iOS app)
Stripe — Payment processing
Google Sign-In / Apple Sign-In — Authentication
WhatsApp — Messaging platform (the iOS app uses a WhatsApp Web session managed on our servers)

8. International Data Transfers

Your data may be processed in different countries where we or our service providers operate.

9. Data Retention

We retain your account information for as long as your account is active. Message content is not permanently stored — translation results are temporarily cached to improve performance, after which they are automatically deleted. WhatsApp session data is removed when you disconnect or delete your account. If you delete your account, your personal data will be removed, though we may retain anonymized usage metrics for service improvement.

10. Policy Updates

We may update this policy periodically to reflect changes in our practices or legal requirements. Significant changes will be communicated through email notifications, website announcements, or application notices. Continued use of our service after changes constitutes acceptance of the updated policy.

11. Contact Information

For privacy-related inquiries, contact our Data Protection Officer at: support@ai-polyglot.com

12. Data Processing by Anthropic

When using cloud translation mode (in both the browser extension and iOS app), your messages are processed by Anthropic's AI models. In accordance with Anthropic's Commercial Terms:

Message data is processed solely to provide translation services
Data is not retained or used to train AI models
Processing is subject to Anthropic's data protection standards and security measures
You maintain ownership of your content and any translations generated
Data processing is conducted in compliance with applicable data protection laws

For complete details about how Anthropic processes data, please review their Commercial Terms and Privacy Policy.

13. Browser Extension — Local Translation Models

The browser extension's local translation mode uses WebLLM. When using local mode:

All processing happens directly in your browser
No message data is sent to our or any third party servers
Model weights are downloaded and stored locally in your browser
Translation quality and speed may vary based on your device's capabilities

Local translation mode is not available in the iOS app. All iOS app translations are processed via cloud mode.