Privacy Policy

1. Information We Collect

HVAC Tools Pro is a completely offline application that performs all calculations locally on your device. We do not collect, store, or transmit any personal information or calculation data.

Data We DO NOT Collect:

• Personal identification information
• Email addresses or contact information
• Device location or GPS data
• Calculation inputs, results, or project data
• Usage analytics or tracking data
• Device information or identifiers

2. How We Use Information

Since HVAC Tools Pro does not collect any user data, there is no information for us to use, share, or process. All HVAC calculations, unit conversions, and technical references are performed entirely on your device without any network connectivity requirements.

3. Data Storage and Security

Any app preferences, calculation history, or custom settings you configure are stored locally on your device only. This information never leaves your device and is not accessible to LARKLabs or any third parties.

Local Storage Only:

• App settings and preferences remain on your device
• Calculation history and saved calculations stored locally
• Custom unit preferences and favorites stored locally
• No cloud storage or external data transmission
• Data is protected by your device's security measures

4. Third-Party Services

HVAC Tools Pro does not integrate with any third-party services, analytics platforms, or advertising networks. The app operates completely independently without external dependencies or internet connectivity requirements.

5. App Permissions

HVAC Tools Pro requires minimal permissions to function:

• Internet Access: Not required - app functions completely offline
• Storage: Only for local app data and calculation history
• Camera/Microphone: Not requested or used
• Location: Not requested or used
• Contacts/Phone: Not requested or used

6. Children's Privacy

HVAC Tools Pro is a professional engineering tool intended for use by qualified HVAC technicians, contractors, and mechanical engineers. We do not knowingly collect any information from children under 13, as our app does not collect any user data whatsoever.

7. Data Sharing and Disclosure

Since we do not collect any user data, there is no information to share, sell, or disclose to third parties. Your calculations, project data, and usage of the app remain completely private to you.

8. Professional Use and Accuracy

HVAC Tools Pro provides professional-grade calculations for HVAC systems. While we strive for accuracy, users should verify all calculations and comply with local codes and regulations. The app is intended as a professional tool to assist qualified technicians and engineers.

9. International Users

HVAC Tools Pro can be used worldwide without any privacy concerns, as no data is collected or transmitted regardless of your location. All processing occurs locally on your device. The app supports both imperial and metric units for international use.

10. Changes to This Privacy Policy

We may update this privacy policy from time to time to reflect changes in our practices or for legal compliance. Any changes will be posted on this page with an updated revision date.

11. Contact Information

12. Technical Features

HVAC Tools Pro includes comprehensive calculation tools for:

• Heating and cooling load calculations
• Ductwork sizing and pressure drop calculations
• Refrigerant properties and system diagnostics
• Psychrometric calculations and air properties
• Unit conversions and engineering references
• Equipment sizing and selection tools