Effective July 1, 2026 · v1.0
Personal data: None. FieldCalc HVAC does not require an account, email, or login. We do not ask for your name, email, phone number, or location.
Calculation inputs: The values you type in (temperatures, pressures, areas) are stored only in the app's local database on your device. This data is technical, not personal.
Usage data & identifiers: We do not collect analytics, crash reports, device identifiers (IDFA/IDFV), or behavioral tracking data. We do not track you across apps or websites.
Your inputs are used solely to perform the calculation you requested and display the result on your screen. Nothing is uploaded, shared, sold, or processed elsewhere. We do not use your data for advertising, profiling, or analytics.
All saved calculations live in the app's local database on your device. Data is retained until you delete it (History → swipe to delete) or until you uninstall the app, at which point all data is permanently removed.
Apple StoreKit 2: Handles in-app purchases. Purchase transactions are processed by Apple; we receive only an encrypted receipt confirming your purchase — no payment card or billing details. Apple's privacy practices apply to the data they collect.
That's it. No ad networks (no AdSupport, no SKAdNetwork), no analytics SDKs, no third-party trackers, no social SDKs are integrated.
Because we collect no personal data, most privacy-law rights (access, correction, deletion, portability) are already fully satisfied — there is nothing for us to disclose or delete about you. For data on your device, you have full control: delete saved history any time. Residents of California (CCPA) and the EU/UK (GDPR) may also contact us with any questions. We do not "sell" personal data as defined by CCPA.
FieldCalc HVAC is a professional tool intended for adults. As we collect no personal data at all, no special protections are required.
The app is available worldwide. Because no data leaves your device, there is no cross-border data transfer by us.
Your on-device data is protected by iOS's built-in data protection (Secure Enclave, file-level encryption). We do not transmit or store your data on any external system.
We may update this Privacy Policy from time to time. Material changes will be reflected in the "Effective" date above.
Questions or privacy requests? Email hvac-supp@12533.uk. We aim to respond within 30 days.