This privacy policy applies to the HVAC Duct Calculator mobile application developed by MEP TASARIM.
HVAC Duct Calculator is a technical calculation tool designed to help users quickly perform preliminary calculations for ventilation ducts, airflow, louvers, grilles, diffusers and duct quantity takeoffs.
The app is intended to support project, field and preliminary evaluation workflows. Calculation results are provided for informational purposes only. Final design decisions should be reviewed against applicable standards, manufacturer catalogues and qualified engineering judgement.
The app does not use user sign-in, membership or account creation. It does not provide cloud backup or account-based data synchronization.
By default, the app does not send user data to our own servers. The following information may be stored locally on the user's device:
This data is kept on the device so the app can work properly, preserve user preferences and show previously saved records.
The app may include Bug Report or Send Feedback options. If the user chooses to use these options, they may voluntarily send an email to info@meptasarim.com through their own email application.
In that case, MEP TASARIM may see the user's email address, name if included by the email account, and the message content. This information is used only for support and feedback purposes. Sending such email is optional.
This version of the app does not display ads and does not include the AdMob SDK. The app does not collect data through user accounts or external analytics systems.
The app may use Google Play Billing or Apple's in-app purchase system for Lifetime VIP purchases and purchase restoration. Purchase transactions are handled by the relevant app store and are subject to that store's terms and privacy policies.
The app may open device or store features such as the system share sheet, email application, Google Play listing or App Store review link. These actions occur only when initiated by the user and are subject to the privacy policies of the relevant services.
This version of the app does not contain advertising. There is no ad placement or AdMob integration. If advertising is added in the future, this privacy policy and the relevant store data safety disclosures will be updated.
The app may offer a one-time digital purchase for Lifetime VIP through the relevant app store.
The app and MEP TASARIM do not collect, view, store or directly process credit card, debit card or payment method information. Payment information is handled by Google Play or Apple.
Purchase status received from the app store is used only to unlock VIP features, verify the purchase and restore the purchase when needed.
Users may:
Because the app does not create user accounts, there is no server-side account deletion process.
HVAC Duct Calculator is not directed to children. The intended audience is technical users aged 18 and over, mechanical installation professionals, design offices, site teams and related engineering students.
The app does not provide health, finance, credit, investment, insurance, government or public services. It is only a technical support tool for ventilation and mechanical installation preliminary calculations.
This privacy policy may be updated from time to time. The current policy link will be shared in the Google Play listing, App Store listing and inside the app where applicable.
Note: The app is intended for informational and preliminary calculation purposes. Results should be checked by a qualified engineer. The user is responsible for how all app outputs are used.
You can contact us for questions about the HVAC Duct Calculator privacy policy or the app.