VoltOne collects nothing.
There is no analytics, no crash reporting, no advertising identifier, no account and no telemetry of any kind. The application makes no network requests at all — not at launch, not on first run, not in the background, and not when you export a file.
This is not a policy about how collected data is handled. There is no collection to handle.
Everything. The values you type, the branches you select, the unit system you read in, and any file you export are written only where you put them: in the application's own storage on your device, or in the location you choose when you export. None of it is transmitted anywhere, and none of it is readable by the developer.
When you export a plot or a result table, the system's own share sheet asks you where it should go. That destination is your choice and is handled by the operating system, not by VoltOne. Once a file leaves the app, the privacy terms that apply to it are those of wherever you sent it.
The privacy answers filed with the App Store for this application are “No, we do not collect data from this app” — the same statement this page makes, in the same words. If you ever find these two disagreeing, the disagreement itself is the bug; please report it using the contact on the support page.
The application is rated 4+ and is suitable for any age. Because it collects nothing from anyone, it collects nothing from children either.
If a future version ever did collect anything, this page would say so before that version shipped, and the App Store privacy answers would be changed to match. As of the date below, no version has.