Last Updated: February 22, 2026
Welcome to HVAC Master Calc. We respect your privacy and are committed to protecting any information that may be collected through your use of our mobile application.
HVAC Master Calc does not collect any personally identifiable information (such as your name, email address, or phone number).
No account registration is required.
The app works offline.
All calculations are performed locally on your device and are never transmitted to our servers.
To provide the app for free, we use Google AdMob to display advertisements. AdMob may collect certain non-personally identifiable information, including:
Unique device identifiers
Advertising IDs (Google Advertising ID)
Approximate location (based on IP address)
App interaction data (to track ad performance)
You can opt out of personalized ads by visiting your device’s Google Settings > Ads > Opt out of Ads Personalization.
The App request only the minimum permissions required for core functions:
INTERNET & Network State: Used solely to load advertisements and check for a connection. The app does not access your camera, microphone, contacts, storage, or GPS location.
HVAC Master Calc is a professional utility tool and is not intended for children under 13. We do not knowingly collect information from children.
Since no personal data is collected or stored on our servers, there is no risk of those details being compromised. Information collected by third-party ad networks is protected by Google’s industry-standard security measures.
We may update this policy occasionally. Any changes will be posted on this page with an updated "Last Updated" date.
If you have any questions regarding this Privacy Policy, please contact us at: Email: [
wasmyabdelhamid@gmail.com]