Privacy Policy
Last updated: March 10, 2026
LetFinflow ("we", "us", or "our") is committed to protecting your personal information. This Privacy Policy explains how we collect, use, and safeguard your data when you use our service.
1. Information We Collect
We collect information you provide directly, such as your name, email address, and LINE user ID when you register. We also collect financial data you input, including transaction records, receipt images, and account balances, solely to provide you with the service.
2. How We Use Your Information
Your data is used to provide and improve the LetFinflow service, generate financial insights, and send you important service notifications. We do not sell, rent, or share your personal data with third parties for marketing purposes.
3. Data Storage & Security
Your data is stored securely using Google Cloud (Firestore) and is protected with industry-standard encryption. We retain your data for as long as your account is active. You may request deletion at any time.
4. LINE Integration
When you connect LetFinflow via LINE, we access only the minimum required permissions (user ID and display name). We do not access your LINE messages, contacts, or any data outside our official LINE OA channel interactions.
5. Cookies & Analytics
We use cookies and similar technologies to understand how you use our web app and to improve your experience. You can disable cookies in your browser settings, though some features may not function correctly.
6. Your Rights
You have the right to access, correct, or delete your personal data at any time. To exercise these rights, please contact us at [email protected].
7. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of significant changes via email or in-app notification. Continued use of the service after changes constitutes acceptance.
8. Contact Us
If you have any questions about this Privacy Policy, please contact us at [email protected].