Privacy policy.

1. Project data on your device

HDCart helps you plan materials, compare whole-package costs and record purchases. Projects, requirements, quotes, selected offers, budgets and purchase records are stored locally in the app. The app has no user account or project-sync backend. Its welcome and privacy webpages do not receive your project records.

2. Online pages and hosting

The app loads its entry and privacy pages over HTTPS each time they are opened. These pages require an internet connection and have no bundled offline copy. A failed request displays an error and a retry option. Once you enter the project tools, those tools work with local data.

The website is published through Vercel and is also accessed through the custom domain 10086-call.com. Hosting and delivery infrastructure may process IP addresses, requested URLs, request times, browser or device request details, and diagnostic or security logs when delivering pages and assets. Local project data is not included in these requests.

Hosting retention and processing practices depend on the infrastructure and its configuration. This policy does not promise zero server logs or a fixed retention period. See the Vercel Privacy Notice for Vercel’s practices, or contact us with questions about this website’s hosting.

3. Analytics, advertising and page storage

HDCart’s page code contains no analytics or advertising scripts, third-party fonts, tracking pixels or user profiles. It does not set cookies or use local storage. In the app, the pages use a nonpersistent web data store. These choices do not prevent hosting infrastructure from processing web requests.

4. Starting the app and external links

In the iOS app, Start opens the native project tools after the entry page has loaded. The webpage does not have a general interface to read project records or execute native commands. Starting the app is not consent to additional data collection. Settings retains a privacy-policy entry.

In an external browser, the website introduces HDCart; it does not provide the native project tools. External links open services with their own privacy practices.

5. Backups and sharing

You can export a backup through the system file interface to a destination you choose. Backups contain project data; protect them and consider the privacy practices of any storage provider you select. The welcome website does not receive exported backups.

Restore validates an imported backup and presents a preview before replacing local data. You can cancel before replacement. File export and restore use the system file interface, without requesting contacts, location or photo-library access.

6. Deletion and device backups

You can delete projects and their associated records in the app. Archiving keeps a project rather than deleting it. Removing the app may remove its local data; device backups, exported files and copies you shared may remain. Delete those copies separately through the relevant system or storage service.

7. Support and privacy requests

If you email us, your email provider and ours process the message, your address and any information or attachments you choose to send. Use dinhthidoan9369@icloud.com for support or privacy requests. Please do not send passwords, verification codes or sensitive project backups unless they are needed and you choose to share them.

You can ask about access, correction or deletion of information you have sent us. Project records stored only on your device are managed in the app; we cannot remotely retrieve them.

8. Security and updates

Online pages use HTTPS. No security measure eliminates every risk. We update this page when the app or website’s data practices change; the date above identifies the latest revision.

9. Contact

Thai Tran Vu · HDCart
Support and privacy: dinhthidoan9369@icloud.com