Last Updated: March 12, 2026
Welcome to MyDuitBook (hereinafter “we” or “the App”).
MyDuitBook is a simple and efficient personal finance and bookkeeping tool that
helps users record, manage, and analyze income and expenses. The App is
designed to be intuitive, practical, and secure, providing users with a clear
and controlled financial management experience.
We highly value your privacy and the security of your personal data. This
Privacy Policy explains how MyDuitBook collects, uses, stores, and protects
your information while you use the App.
By using the App, you acknowledge that you have read, understood, and agreed to
this Privacy Policy.
1. Privacy Principles
MyDuitBook follows the following principles in data processing:
• Data Minimization: Collect only the data necessary for the App’s functionality
• Transparency: Clearly explain how data is used
• Legitimacy: Process data only within the bounds of the law
• Security: Implement reasonable technical measures to protect user data
This Privacy Policy applies to:
• MyDuitBook mobile application (App)
• Services and technical support related to MyDuitBook
2. Types of Data We Collect
2.1 User-Provided Data
To enable bookkeeping functionality, users can voluntarily enter the following information:
• Account/ledger names
• Income and expense records
• Categories and tags
• Notes for each record
All data is provided voluntarily by the user and is used solely for managing financial records within the App. MyDuitBook does not actively collect your financial information.
2.2 Local Storage Data
• All user-entered information (including income, expenses, categories, notes, etc.) is stored locally on the user’s device.
• Data is not uploaded to any server.
• Therefore:
￮ We cannot access your financial data
￮ You have full control over your data
2.3 Device and Technical Information
To ensure stable operation of the App, we may collect limited technical information, such as:
• Device model
• Operating system version
• App version
• App usage logs or crash reports
This information is used solely for:
• App stability optimization
• Error troubleshooting
• Product experience improvement
This technical information cannot be used to identify you personally.
3. App Permissions
With your consent, MyDuitBook may request the following device permissions:
3.1 Contacts
• When using record-sharing or contact selection features, the App may request access to your contacts.
• Purpose: selecting contacts to share records or quickly filling in contact information.
• We do not upload or store your full contact list; only the contacts you actively select are used.
• You may disable this permission at any time in your device settings.
3.2 Camera
• When using features to take photos of receipts or scan records, the App may request camera access.
• Camera access is only enabled when you actively use these features.
3.3 Photos/Media
• When selecting images from your gallery to attach to records or share, the App may request access to your photos.
• The App does not access or upload all your photos.
4. Purpose of Data Use
We use your data only in the following circumstances:
• To provide personal finance and bookkeeping functions
• To save user-created records
• To support record-sharing features
• To improve app performance and stability
• To fix errors or bugs
We do not:
• Sell your personal data
• Use financial information for advertising purposes
• Access device data without authorization
5. Data Sharing and Third-Party Services
• MyDuitBook does not sell, rent, or exchange users’ personal information.
• In some cases, we may use third-party services (e.g., Google Firebase, analytics SDKs) to process anonymized technical information solely for statistical analysis and product optimization. These services do not involve personally identifiable information.
Examples of third-party service privacy policies:
|
Proveedor de servicio |
Finalidad |
Tipo de datos |
Base legal |
|
Google Firebase |
Análisis de rendimiento de la aplicación y
monitoreo de fallos |
Identificador del dispositivo, estadísticas
de uso |
Basado en el interés legítimo del usuario |
|
Facebook SDK |
Atribución y optimización de campañas
publicitarias |
ID de publicidad (GAID) |
Basado en la autorización del usuario y los
requisitos de GDPR/CCPA |
|
Google Analytics |
Análisis del comportamiento de los usuarios |
ID de publicidad (GAID) |
Basado en la autorización del usuario y los
requisitos de GDPR/CCPA |
Cada servicio de terceros cumple con las normativas de protección de datos aplicables en su jurisdicción y proporciona su propia política de privacidad:
• Política de privacidad de Google Firebase: https://firebase.google.com/support/privacy
• Política de privacidad de Facebook: https://www.facebook.com/policy.php
• Política de privacidad de Google Analytics: https://policies.google.com/privacy
6. Data Storage and Security
6.1 Local Data Storage
• All user data is stored locally on the device.
• Data is not uploaded to any server.
• Users can delete their data at any time.
6.2 Security Measures
We take reasonable measures to protect user data, including:
• Local data security protection
• Principle of least privilege for app permissions
• App security update mechanisms
We recommend users:
• Set a lock screen password on the device
• Keep the device secure
7. User Data Control
Users have full control over their data, including:
• Adding, modifying, or deleting records
• Managing categories and tags
• Clearing app data
• Uninstalling the app may delete local data
8. Children’s Privacy
MyDuitBook is not intended for children under 13.
If we inadvertently collect information from children under 13, we will
promptly delete such data.
9. Privacy Policy Updates
We may update this Privacy Policy based on legal requirements or product updates.
• Updated policies will be published within the App
• Changes take effect upon publication
We recommend users review the latest version periodically.
10. Contact Us
If you have any questions, feedback, or
concerns regarding this Privacy Policy, please contact us:
Email: help@myduitbook.com