Last Updated: March 26, 2026
Dwufi is built with a fundamental commitment to protecting your privacy. As a visual knowledge management app that does not require user accounts, we minimize data collection to only what is essential for providing core functionality. This policy explains how we handle any information you generate or provide while using Dwufi, and our promise to keep your data secure and private.
We do not collect, store, or share any personal identification information (such as your name, email address, phone number, or location) unless you explicitly choose to provide it for support purposes.
Dwufi collects only the following types of data, and all usage is limited to improving your app experience:
We do not collect any sensitive data, including but not limited to your location, contacts, or browsing history, unless you explicitly grant permission for a specific feature (e.g., accessing your device’s camera or photo gallery to upload study materials).
Dwufi requires access to your device’s camera and photo gallery to let you capture and upload study materials. This access is optional and only requested when you initiate an action that requires it (e.g., tapping the "Capture Image" button).
You can revoke this permission at any time through your device’s settings, and revoking it will not affect your ability to use other core features of the app (such as viewing existing notes or organizing vaults).
Images and notes you upload are stored locally on your device and are never transmitted to Dwufi’s servers or shared with third parties without your explicit consent.
All your user content is stored locally on your device, giving you full control over your data. We implement the following security measures to protect your information:
While we take all reasonable steps to secure your data, you are responsible for protecting your device with a passcode or biometric authentication to prevent unauthorized access to your Dwufi content.
Dwufi may integrate with third-party services for limited functionality, such as crash reporting or analytics. These services are bound by their own privacy policies, and we only share anonymous, aggregated data with them to improve the app.
We do not share any personal or user-generated content with third parties for any purpose, including advertising, marketing, or data mining. Any third-party links within the app are provided for your convenience, and Dwufi is not responsible for the privacy practices of external websites or services.
As a Dwufi user, you have the following rights regarding your data:
If you have any questions about your privacy rights or how we handle your data, please contact us at dwufidwufihusb@outlook.com.
Dwufi may update this privacy policy from time to time to reflect changes in our practices or legal requirements. We will notify you of significant changes through in-app notifications or by updating the "Last Updated" date at the top of this policy.
Your continued use of Dwufi after such changes constitutes your acceptance of the updated policy. We encourage you to review this policy periodically to stay informed about how we protect your privacy.
If you have any questions, concerns, or requests regarding this privacy policy or our data practices, please reach out to our privacy team at:
Email: dwufidwufihusb@outlook.com
We will respond to your inquiry within 3 business days and work to address any issues you may have.