Privacy Policy

1. Overview

Welcome to Tsuzuru (綴る)("we," "our," or "us"). Tsuzuru is a mindful, minimalist personal finance manager designed around the Japanese Kakeibo method. We value your privacy above all else: your financial data is personal, sensitive, and belongs solely to you.

2. Information We Collect

We only collect information necessary to provide and improve our financial management services:

• Account Information: When you register via Google Sign-In or email, we receive your email address, name, and profile picture provided by Google OAuth.
• Financial Data: Transactions, account names, categories, currency preferences, budgets, recurring bills, and savings goals that you explicitly log.
• Receipts & OCR Images: Images or text snippets of receipts that you choose to upload for automated item extraction.
• Device & Notification Data: Web Push notification endpoints if you opt-in to bill reminder alerts.

3. How We Use Your Information

Your information is used strictly to deliver core app functionality:

• To compute your balances, budget limits, spending charts, and financial health scores.
• To parse receipt items via secure third-party AI service providers (such as DeepSeek) when you initiate a scan.
• To send you scheduled reminders for recurring bills (if enabled).
• To maintain secure authentication and protect against unauthorized access.

4. AI & Receipt Processing

When you use the automated receipt parsing feature, your receipt image or text is transmitted securely to our designated third-party Artificial Intelligence (AI) service providers (such as DeepSeek or equivalent secure LLM APIs) solely to extract line items, amounts, and dates. We enforce strict data handling practices: your receipt data is never used to train public machine learning models, and is processed confidentially under enterprise API security standards.

5. Data Sharing & Third Parties

We never sell, rent, or monetize your personal or financial data. We do not serve third-party advertisements. Data is only shared with essential infrastructure providers required to operate the service:

• Google: For OAuth user authentication.
• AI Service Providers: Secure enterprise AI APIs (such as DeepSeek) for receipt extraction without retaining data for public training.
• Hosting & Database Providers: For encrypted cloud database and application hosting.

6. Data Isolation & Security

We implement strict row-level user isolation. Every query in our database is scoped strictly by your user identifier, ensuring no other user can access or view your financial records. Communication between your browser and our servers is encrypted using HTTPS / TLS.

7. Data Retention & Deletion

Your data is stored for as long as your account remains active. You may request the export or complete deletion of your account and all associated financial records at any time directly in-app or via our dedicated Account & Data Deletion page.

8. Contact Us

If you have questions or concerns about this Privacy Policy or your data, please contact us at:
Email: admin@itsuzuru.app