Privacy Policy
We don't collect your data.
This policy applies to all apps published by Significant Figures, including Position Sizer.
What we collect
Nothing. Our apps have no user accounts, no analytics, no advertising, and no network connection of any kind. They do not collect, transmit, or have access to any personal data, usage data, or device identifiers.
Where your data lives
Anything you enter — inputs, preferences, saved values — is stored locally on your own device using Apple's standard on-device storage. It never leaves your phone or Mac, and we have no way to access it.
Third parties
We don't use any third-party SDKs, analytics services, or advertising networks in any of our apps. No data is shared with anyone, because none is collected in the first place.
Browser games and the optional real-weather switch
The games on signifigs.com run in your browser and keep their saves on your own device. One of them, Hearthwick, has an optional “Real weather” button, off unless you press it. If you do, your browser asks where you are; the position is rounded to about 11 km and kept only in your browser, and every ten minutes your browser asks the free Open-Meteo weather service (open-meteo.com) for the current weather there, so that service sees your IP address and that rounded position. We receive nothing, and pressing the button again switches it off.
Children's privacy
Since we don't collect any data from anyone, this includes children — our apps are safe to use regardless of age with respect to data collection.
Changes to this policy
If this ever changes for a future app or feature, we'll update this page and the affected app's App Store listing before the change takes effect.