LoadSizer

Privacy Policy

Last updated: September 28, 2026

Data we collect

None. LoadSizer does not collect, transmit, or share any personal information, usage data, device identifiers, or location data. Every calculation runs entirely on your device, and the app makes no network requests of its own — there is no server for it to talk to.

Data stored on your device

Everything you enter stays on your device, saved locally using the operating system's standard local storage:

• Your projects and rooms — names, dimensions, construction details, and calculated results you enter into the app.
• Your preferences — units, language, safety factor, last-used climate, and Pro status.
• A rating-prompt counter — how many times you have opened the app, whether you have already rated it, and when the rating prompt was last shown. This exists solely so the app does not ask you to rate it repeatedly.

This data:

• never leaves your device on its own
• is not accessible to the developer or any third party
• is permanently deleted when you uninstall the app

Actions that leave the app

LoadSizer never contacts the network on its own, but a few features hand off to other apps or the operating system when you tap them:

• Export PDF — generates a PDF report on your device and opens your device's native share sheet so you can save it or send it wherever you choose. LoadSizer does not upload the file anywhere itself, and deletes its own temporary copy immediately after the share sheet closes.
• Rate the app — opens the App Store review dialog or listing. Your review is handled entirely by Apple under its own privacy policy.
• Send feedback — opens your email app with a blank message addressed to the developer. Nothing is sent unless you write and send it yourself, and the app does not attach any data to it.
• More HVAC tools — opens an App Store listing for one of the developer's other apps, in your browser or the App Store app.

Third-party services

LoadSizer does not integrate any third-party analytics platforms, advertising networks, or crash-reporting services.

In-app purchases

LoadSizer is free to use, with an optional one-time "LoadSizer Pro" purchase that unlocks unlimited rooms/projects and PDF export. There are no subscriptions. Payment processing is handled entirely by Apple under its own privacy policy — the developer never sees or stores your payment information.

Children's privacy

LoadSizer is an HVAC sizing tool for tradespeople, engineers, and homeowners, and is not directed at children. Since the app collects no data from any user, this applies equally regardless of age.

Changes to this policy

If this policy ever changes — for example, if a future version adds an optional feature that touches data — this page will be updated and the "last updated" date above will change accordingly.

Contact

Questions about this policy can be sent to duonghedspi@gmail.com.