Effective Date: January 2025
1. Introduction
This Privacy Policy describes how WUJI ("we," "our," or "us") collects, uses, and protects your information when you use the WUJI mobile application.
2. Information We Collect
2.1 Information You Provide (Stored Locally Only)
- Financial data you enter (expenses, income, notes, calculations)
- Custom categories, folders, and labels
- App settings and preferences
2.2 Analytics and Diagnostics Data
To improve app performance and stability, we collect limited analytics data through Firebase:
- Crash Reports: Automatic error reports when the app crashes (via Firebase Crashlytics)
- Usage Analytics: App open events, screen views, and feature usage patterns (via Firebase Analytics)
- Performance Metrics: App version updates and retention milestones
- Device Information: iOS version, device model, app version
Important: This data is NOT linked to your identity and contains NO personal or financial information.
2.3 What We DO NOT Collect
- We do NOT store your financial data on our servers
- We do NOT collect personal identifiable information
- We do NOT use tracking or advertising identifiers
- We do NOT sell or share your data with third parties
- We do NOT link analytics data to your identity
3. How We Use Your Information
- Core Functionality: To provide expense tracking and calculation features
- iCloud Backup and Restore: To backup and restore your data across your Apple devices (Premium feature)
- App Stability: To identify and fix crashes through Firebase Crashlytics
- App Improvement: To understand feature usage and improve user experience through Firebase Analytics
- Performance Monitoring: To track app performance and optimize speed
- Customer Support: To respond to your inquiries
4. Data Storage and Security
4.1 Local Storage
All your financial data is stored locally on your device using encrypted SQLite databases.
4.2 iCloud Storage (Premium)
If you enable iCloud backup, your data is encrypted and stored in YOUR personal iCloud account. We cannot access this data - it belongs entirely to you.
4.3 Our Servers
We do NOT have servers that store your data. Your expense records, notes, and calculations remain 100% private to you.
5. Third-Party Services
5.1 Apple App Store
In-app purchases are processed by Apple. We receive only purchase confirmation, not payment details.
5.2 Google AdMob (Free Version)
Ads are served by Google AdMob. We have disabled personalized ads, so AdMob does not track you for advertising purposes. Only contextual ads are shown.
5.3 Firebase (Google)
We use Firebase services for app analytics and crash reporting:
- Firebase Analytics: Collects anonymous usage data to help improve the app
- Firebase Crashlytics: Automatically reports app crashes to help us fix bugs
Firebase processes this data according to Google's Privacy Policy. All data collected is anonymous and not linked to your identity.
6. Your Rights
- Access: All your data is accessible within the app
- Deletion: Delete individual records or all data via app settings
- Export: Export your data to CSV format for backup or analysis
- Import: Import data from WUJI-exported CSV files to restore information
- Portability: Your data remains in standard CSV format for easy transfer
- Visualization: View your data through interactive pie charts and analytics
7. Changes to Privacy Policy
We may update this Privacy Policy. Continued use of the app after changes constitutes acceptance of the updated policy.
8. Contact Us
For privacy-related questions, contact us at:
- Email: support@wufan.app
- Subject: WUJI Privacy Inquiry
9. Data Retention
Your data is retained as long as you keep the app installed. Deleting the app removes all local data. iCloud data can be removed through your iCloud settings.