SigApp — Privacy Policy

Effective date: March 16, 2026

SigApp ("we", "us", "the app") helps users understand their communication patterns through AI-powered conversation analysis and coaching. Your privacy matters to us. This policy explains what data we collect, how we use it, and your rights.

1. What Data We Collect

• Conversation text: When you run an analysis, the conversation text you select is sent to our servers for AI processing. It is not stored on our servers after processing is complete.
• Firebase Authentication: We create a Firebase Auth account for you. If you sign in with Google, we receive your name, email, and profile photo from Google. If you use the app without signing in, we assign an anonymous identifier.
• Coaching state: If you use Dr. Sigi (our AI coaching feature), your coaching progress, goals, session notes, and a summary of your communication themes are stored in Firebase Firestore so Sigi can remember your context across sessions.
• Analysis summaries: Brief digests of your analyses (not the raw conversation text) are stored in Firestore so Dr. Sigi can reference your past insights during coaching.
• Crash reports: We use Firebase Crashlytics to collect anonymous crash reports, including device model, OS version, and stack traces. Your Firebase user ID is attached to crash reports so we can investigate issues you report.
• Analytics events: We use Firebase Analytics to collect anonymous usage events (e.g., "analysis started", "chat message sent"). These help us understand which features are used and improve the app. No conversation content is included in analytics.
• Local storage: Analysis results, chat history, and saved conversations are stored in an encrypted database (SQLCipher) on your device.

2. How We Use Your Data

• To provide AI-powered conversation analysis and coaching.
• To maintain your coaching progress and personalized insights across sessions.
• To diagnose and fix crashes and technical issues.
• To understand app usage patterns and improve features.

We do not use your data for advertising. We do not sell your data to third parties.

3. Third-Party Processors

• Firebase / Google Cloud: Authentication, cloud storage (Firestore), crash reporting (Crashlytics), analytics, and serverless functions. Firebase Privacy.
• OpenAI: AI analysis and coaching responses are generated via the OpenAI API. Conversation text is sent to OpenAI for processing. OpenAI's data usage policies apply. OpenAI API Data Usage.

We may add additional AI providers (Anthropic, Google Gemini) in the future. This policy will be updated accordingly.

4. Data Storage & Security

• On-device: All local data is stored in a SQLCipher-encrypted database.
• In transit: All communication between the app and our servers uses HTTPS/TLS.
• Server-side: Firestore data is protected by security rules that ensure users can only access their own data. All server writes use the Firebase Admin SDK.
• API keys: AI provider API keys are stored in Google Secret Manager and are never present in the app code.

5. Data Retention

• Conversation text sent for analysis: Processed in memory and not persisted on our servers after the analysis completes.
• Coaching state (Firestore): Retained until you delete your account.
• Crash reports & analytics: Retained per Google/Firebase default retention periods (typically 90 days for crash data, 14 months for analytics).
• Local data: Retained on your device until you delete it or uninstall the app.

6. Your Rights — Deletion

You can delete all your data at any time:

• In-app: Go to Settings > Account > Delete Account. This deletes your Firebase account, all Firestore data, and all local data.
• Web request: Visit our deletion request page to request account deletion by email.

Upon deletion, we remove your Firebase Auth account, all Firestore documents associated with your user ID (coaching state, analysis summaries, chat streams), and instruct the app to clear its local database. Crash reports and aggregated analytics data may persist in anonymized form.

7. Children's Privacy

SigApp is not intended for users under the age of 16. We do not knowingly collect data from children. If you believe a child has used the app, please contact us and we will delete their data.

8. Not a Medical or Therapeutic Service

SigApp is not therapy, diagnosis, or mental health treatment. AI-generated insights are for educational and self-reflection purposes only. They may be inaccurate and should not replace professional advice from a licensed therapist, psychologist, or counselor.

9. 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. Continued use of the app after changes constitutes acceptance.