Privacy Policy
Effective date: May 2, 2026
Overview
Polyngo Translator is an AI-powered translation app. This policy explains what data we collect, why we collect it, and the choices you have.
We never store the text you translate. Your translation content stays on your device or is sent directly to Google's AI services for processing and is not retained by us.
Data We Collect
Account Information
- Email address and display name (when signing in with Google)
- A unique user ID generated by Firebase Authentication
Usage Data (stored in Firestore)
When you perform a translation while signed in, we store:
- Total translation count and per-day / per-month totals
- AI model used
- Source and target language(s)
- Translation duration and token counts
- Whether a fallback model was used and why
This data is linked to your account and is used to enforce daily usage quotas.
Analytics (Firebase Analytics / Google Analytics 4)
- The same translation metadata listed above
- Character length of the input text (not the text itself)
- Session start/end and duration
- Login and logout events, including sign-in method
- Screens viewed
- Device system language and locale
How We Use Your Data
- To enforce daily translation quotas
- To understand how the app is used and improve it
- To authenticate you and manage your account
Third-Party Services
Polyngo Translator uses the following Google services, each subject to Google's Privacy Policy:
- Firebase Authentication – account management
- Cloud Firestore – usage data storage
- Firebase Analytics – anonymous usage analytics
- Firebase AI (Gemini) – cloud translation processing
- Google Sign-In – authentication
When you use cloud translation, your input text is sent to Google's Gemini API for processing. Please refer to the Gemini API Terms for details on how that data is handled.
Your Choices
Analytics opt-out: You can disable analytics collection at any time in the app's Settings screen. When disabled, no analytics events are sent.
Data deletion: We do not currently offer in-app data deletion. To request deletion of your account data, contact us at support@polyngo.app.
Children's Privacy
Polyngo Translator is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe your child has provided us with personal information, please contact us.
Changes to This Policy
We may update this policy from time to time. Changes will be posted on this page with an updated effective date.
Contact
Questions or requests about your data? Email us at support@polyngo.app.