owc calculator privacy policy

Privacy Policy – OWC Calculator

Privacy Policy

OWC Calculator — Organic Waste Converter Capacity Estimator

Effective date: June 12, 2026  |  Last updated: June 12, 2026

This app does not collect, store, or share any personal information entered by you. All calculations are performed locally on your device.

1. About This App

OWC Calculator is developed and published by Harshz (harshz.com). The app helps architects, engineers, and green building professionals estimate the required capacity of an Organic Waste Converter (OWC) based on building occupancy, typology, and landscape area, in accordance with NBC and GRIHA guidelines.

The app is available on the Google Play Store for Android devices.

2. Information We Do Not Collect

We do not collect, transmit, or store:

  • Your name, email address, or any account information
  • Building data, occupancy figures, or project details you enter
  • Location data (GPS or network-based)
  • Device contacts, files, or media
  • Any form of personal data

All inputs you enter (occupancy, landscape area, etc.) are used solely for on-device calculation and are never sent to any server.

3. Advertising (Google AdMob)

This app displays advertisements served by Google AdMob. AdMob may collect and use certain information to serve relevant ads, including:

  • Device identifiers (e.g. Android Advertising ID)
  • IP address and approximate location
  • App usage and interaction data
  • Device information (model, OS version, language)

This data is collected and processed by Google, not by us. We have no access to it.

For users in regions covered by GDPR (European Economic Area) or other applicable privacy laws, the app presents a consent form before loading any ads. You may choose to receive personalised or non-personalised ads, or opt out entirely where required by law.

Learn more about how Google uses data: policies.google.com/privacy

To opt out of personalised advertising on your device, visit your device settings: Settings → Google → Ads → Opt out of Ads Personalisation.

4. Exported Reports (PDF & Excel)

The app allows you to generate and export calculation reports as PDF or Excel files. These files are created entirely on your device using the data you entered. They are shared only through your device's native share sheet — for example, to your email app, cloud storage, or messaging app — and we have no involvement in or visibility into how you share them.

5. Third-Party Links

The app contains a link to the developer's Google Play Store page and website (harshz.com). Tapping these links opens an external app or browser. We are not responsible for the privacy practices of those external services. Please review their respective privacy policies before use.

6. Children's Privacy

OWC Calculator is a professional tool intended for users aged 13 and above. We do not knowingly collect any data from children under 13. If you believe a child under 13 has used this app, please contact us and we will take appropriate steps.

7. Data Security

Since this app does not transmit any user data to external servers, there is no data in transit to secure. Exported report files remain on your device under your control.

8. Changes to This Policy

We may update this privacy policy from time to time. Any changes will be reflected on this page with an updated effective date. We encourage you to review this policy periodically. Continued use of the app after changes are posted constitutes acceptance of the updated policy.

9. Contact Us

If you have any questions or concerns about this privacy policy, please contact us:

© 2026 Harshz. All rights reserved.  |  OWC Calculator v1.0.0

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