Privacy Policy
Last updated: February 2026
1. Introduction
Fyntro ("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 Service.
By using Fyntro, you consent to the data practices described in this policy.
2. Information We Collect
Account Information: When you register, we collect your name, email address, and authentication credentials (password hash or OAuth token. We never store your raw password).
Usage Data: We collect information about how you interact with the Service, including symbols you search, timeframes you view, features you use, and session duration. This helps us improve the product.
Watchlists and Preferences: Symbols you add to watchlists, chart settings, alert configurations, and other preferences are stored to provide a personalised experience.
AI Interaction Data: Queries you submit to the AI chat or analysis features may be processed by third-party AI providers (Google Gemini, OpenAI) to generate responses. We do not sell this data.
Payment Information: Payment processing is handled by Stripe. We do not store your card details, only a subscription status and customer reference.
Technical Data: IP address, browser type, device information, and cookies for session management and rate limiting.
3. How We Use Your Information
- To provide, operate, and maintain the Service
- To personalise your experience and remember your preferences
- To process transactions and manage your subscription
- To send transactional emails (account confirmation, alerts, billing)
- To detect and prevent fraud, abuse, or security incidents
- To analyse usage patterns and improve the product
- To comply with legal obligations
We do not sell your personal data to third parties, and we do not use your data for advertising.
4. Third-Party Services
We use the following third-party services to operate Fyntro:
- Google (OAuth, Gemini AI): Authentication and AI analysis
- OpenAI: AI chat features
- Stripe: Payment processing
- Finnhub / yfinance: Market data
- NewsAPI: Financial news
- Neon / PostgreSQL: Database hosting
- Redis (Upstash): Caching
- Sentry: Error monitoring and performance tracking (may capture anonymised request metadata and stack traces)
Each of these services has its own privacy policy. We encourage you to review them. We only share the minimum data necessary for each service to function.
5. Data Retention
We retain your account data for as long as your account is active. If you delete your account, we will delete or anonymise your personal data within 30 days, except where retention is required by law (e.g., billing records).
Usage analytics and aggregated data may be retained indefinitely in anonymised form.
6. Your Rights
Depending on your location, you may have the following rights:
- Access: Request a copy of the data we hold about you
- Correction: Request correction of inaccurate data
- Deletion: Request deletion of your account and associated data
- Portability: Request your data in a machine-readable format
- Objection: Object to certain processing activities
To exercise any of these rights, reach out via the in-app feedback widget.
7. Cookies
We use cookies and similar tracking technologies for session management, authentication, and rate limiting. We do not use third-party advertising cookies.
You can control cookies through your browser settings. Disabling cookies may affect certain features of the Service.
8. Security
We implement industry-standard security measures including HTTPS encryption, hashed passwords (bcrypt), JWT-based authentication, and rate limiting to protect your data.
No method of transmission over the internet is 100% secure. While we strive to protect your data, we cannot guarantee absolute security.
9. Children's Privacy
The Service is not directed to individuals under 18 years of age. We do not knowingly collect personal information from minors. If you believe a minor has provided us with personal information, please contact us immediately.
10. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of significant changes via email or a prominent notice on the Service. Your continued use after changes constitutes acceptance of the updated policy.
11. Contact Us
For privacy-related questions or requests, reach out via the in-app feedback widget.