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Privacy Policy

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Effective Date: April 14, 2026

1. Introduction

Zenterra Systems Solutions (the "developer") operates the PH Barangay Downloader (the "Application"), a free, browser-based general-purpose geospatial data downloader that centralizes and simplifies access to open-source Philippine geospatial datasets compiled from public servers and authorized sources. This Privacy Policy explains in full detail what information the Application collects (if any), how it is used, and what rights you have as a user.


The developer is committed to respecting your privacy. By design, the Application requires no user account, no registration, and no submission of personal information of any kind. The Application is built on a "privacy by default" architecture — meaning privacy protection is not an afterthought but a foundational technical decision.

2. What the Application Does

To understand this Privacy Policy, it helps to understand what the Application does and how it operates technically:

  • Interactive globe navigation: When you open the Application, a 3D globe rendered by MapLibre GL is displayed in your browser. You can rotate and zoom the globe freely, and the Application will animate it to target whichever administrative area you select. This rendering is entirely client-side — the developer's servers do not receive or record your geographic navigation choices.
  • Administrative hierarchy browsing: The left-hand panel lists Philippine provinces, municipalities, and barangays. Clicking or double-clicking entries drills down through the hierarchy. Your navigation selections are held only in the application's in-memory state in your browser tab and are discarded when the tab is closed.
  • Boundary data downloads: When you request a download, the Application retrieves or constructs the requested boundary geometry and converts it to your chosen format (GeoJSON, Shapefile, or GeoPackage) entirely within your browser using JavaScript libraries (shp-write for Shapefile; sql.js, a WebAssembly port of SQLite, for GeoPackage). The resulting file is written directly to your device's download folder. No data is sent to or stored on any server operated by the developer.
  • Hazard layer visualization: Flood susceptibility, landslide susceptibility, and storm surge hazard layers are rendered as overlay tiles on the globe. These are visual displays only; no interaction with hazard layers is recorded or transmitted.
  • Sound and UI preferences: The Application includes optional ambient sound features. Your choice to enable or disable sound may be persisted in your browser's local storage so that the preference is remembered on subsequent visits. This data never leaves your device.

3. Information We Do Not Collect

The following categories of information are not collected by the Application under any circumstances:

  • Your name, email address, phone number, or any other contact information
  • Your physical address or GPS location
  • Government-issued identification numbers
  • Payment information or financial data of any kind
  • Login credentials, passwords, or authentication tokens
  • The specific boundary areas or barangays you browse, select, or download
  • The files you download, including their format or size
  • Your geographic navigation actions on the 3D globe
  • Biometric data or device fingerprint data
  • Social media profile information or login tokens

There is no user account system, no registration flow, no login page, and no mechanism by which the Application could associate your activity with your identity.

4. Browser Local Storage

The Application may write a small amount of data to your browser's local storage or session storage to preserve user interface preferences between visits. This may include:

  • Sound preference: Whether you have enabled or disabled the Application's ambient sound feature. This is stored so the Application respects your preference on subsequent visits without asking again.
  • Active tab state: Which panel (Downloader or About) was last active, if applicable, to restore your session view on return.

Data stored in local storage is kept exclusively on your device. It is never transmitted to the developer's servers or any third-party service. You can clear this data at any time through your browser's developer tools or privacy settings (Settings → Site Data → Clear). Clearing local storage will reset Application preferences to their defaults.

5. Cookies

The Application does not use cookies for any purpose — including session management, user tracking, analytics, advertising, or personalization. No first-party cookies are set by the Application. You will not be asked to accept a cookie consent banner from this Application because no cookies are used.


Third-party services that the Application loads resources from (such as font providers or map tile services) may set their own cookies in accordance with their own privacy policies. The developer does not control third-party cookie behaviour and is not responsible for it. Please refer to the privacy policies of those providers directly.

6. Third-Party Resource Loading

The Application loads resources from the following categories of third-party providers. Each time your browser loads a resource from a third-party server, that server typically logs standard access information such as your IP address, browser user agent, referring URL, and the timestamp of the request. This logging occurs at the infrastructure level of the third party and is governed by their own privacy policies, not this one.

  • Google Fonts (fonts.googleapis.com): The Application uses the Orbitron and Electrolize typefaces, loaded from Google's font delivery network. Google may log font request metadata in accordance with Google's Privacy Policy.
  • MapLibre GL map tiles: The 3D globe visualization uses vector or raster tile sources to render the base map. Tile servers log the tile coordinates and zoom levels requested by your browser as part of normal server operation.
  • CDN-delivered JavaScript libraries: If any open-source libraries are loaded from a content delivery network (CDN), those CDNs may log access requests.

The developer does not receive, access, or process any of this third-party server log data. The developer has no control over what third-party services log and is not responsible for their data practices.

7. Server-Side Logs

The Application is hosted on a web server. As with all web servers, the hosting infrastructure may automatically generate standard server access logs that record:

  • Your IP address at the time of page access
  • The URL path requested (e.g., /, /tos, /privacypolicy)
  • HTTP status codes returned
  • Browser user agent string (browser type and version)
  • Date and time of access
  • Referrer URL (the page you came from, if any)

These logs are generated automatically by the hosting provider's infrastructure for security, uptime monitoring, and abuse prevention purposes. They are not used by the developer to profile, track, or identify individual users. Log data is retained for the duration specified by the hosting provider's standard data retention policy and is not shared with advertisers, data brokers, or any other commercial third parties.

8. Analytics and Tracking

The Application does not currently employ any analytics or behavioral tracking tools, including but not limited to: Google Analytics, Adobe Analytics, Mixpanel, Amplitude, Hotjar, Facebook Pixel, or any other tracking SDK or script. No tracking pixels, session replay tools, heatmaps, or conversion tracking is in use.


If the developer introduces any analytics capabilities in a future version of the Application, this Privacy Policy will be updated to clearly disclose the tool used, the data collected, the purpose of collection, and any applicable opt-out mechanisms. Users will be notified of such changes via an updated effective date on this page.

9. Geospatial Data You Download

When you use the Application to download boundary files (GeoJSON, Shapefile, or GeoPackage), the conversion and file generation process occurs entirely within your browser using client-side JavaScript. Specifically:

  • Shapefile generation uses the shp-write library, which writes geometry and attribute data into .shp, .shx, .dbf, and .prj files and packages them into a ZIP archive — all in memory within your browser tab.
  • GeoPackage generation uses sql.js, a WebAssembly build of SQLite that runs in the browser. An OGC-compliant GeoPackage database is assembled in browser memory and then written as a .gpkg binary file to your device.
  • GeoJSON export serializes the geometry to RFC 7946-compliant JSON text directly in the browser without any server involvement.

None of these operations involve any network request to the developer's servers or to any third-party data processing service. The geospatial data in the file you download goes directly from your browser to your device's storage. The developer never sees, receives, or stores what you download. All data available through the Application is open-source, compiled from public servers and authorized sources. Any selling or commercialization of downloaded files is strictly prohibited by the original data owners and governing authorities.

10. Data Security

Because the Application does not collect, transmit, or store any personal information, there is no personal data held by the developer that could be subject to a data breach on the Application's side. The primary security considerations for users of this Application are:

  • Browser security: Your browser's security model governs what scripts can access on your device. The Application does not request any browser permissions beyond those needed to render the globe and trigger file downloads.
  • HTTPS: The Application is served over HTTPS, encrypting all data in transit between your browser and the hosting server, including the initial page load and any static asset requests.
  • Local storage security: Data stored in your browser's local storage (sound preference) is subject to your browser's same-origin policy and cannot be accessed by other websites.

11. Children's Privacy

The Application is not directed at children under the age of 13 and does not knowingly collect personal information from children. Because the Application collects no personal information from any user regardless of age, it inherently complies with children's online privacy requirements. Parents or guardians with concerns about a minor's use of the Application may contact the developer using the contact information in Section 13.

12. Your Rights

Under the Philippine Data Privacy Act of 2012 (Republic Act No. 10173), data subjects have rights including the right to be informed, the right of access, the right to rectification, the right to erasure or blocking, and the right to data portability, among others.


Because this Application does not collect, store, or process any personal data, there is no personal data held by the developer to access, correct, or delete on your behalf. If you believe the Application has inadvertently collected personal data, or if you have any questions about your rights in relation to this Application, please contact the developer using the information in Section 13 and the matter will be investigated promptly.

13. Changes to This Privacy Policy

The developer reserves the right to update or modify this Privacy Policy at any time to reflect changes in the Application's functionality, applicable law, or best privacy practices. When changes are made, the effective date at the top of this page will be updated. Material changes — such as the introduction of data collection where none previously existed — will be communicated clearly. Your continued use of the Application after any changes to this Privacy Policy constitutes your acceptance of the revised policy. You are encouraged to review this Privacy Policy periodically.

14. Contact

If you have any questions, concerns, or requests regarding this Privacy Policy or the Application's data handling practices, please reach out through the official Zenterra Systems Solutions Facebook page. The developer will respond to all legitimate privacy inquiries within a reasonable timeframe.

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