Pro Bona collects no data. None.
Pro Bona is a fully offline, single-player game. It makes no network requests of any kind. There are no accounts, no sign-ins, no analytics, no advertising, no tracking, no in-app purchases, and no third-party services that receive information about you.
Your game progress (campaign state and scores) is stored only on your own device and never leaves it. Deleting the app deletes it.
Because the app collects no information from anyone, it collects no information from children.
If a future update ever changes any of the above, this policy will be updated before that version ships, and the change will be noted in the App Store release notes.
Questions about this policy: support@probona.ddrummond.net