The Google play store expects an app that can be used by children to have a
Privacy policy: You must provide a link to your app's privacy policy on your app's store listing page. This link must be maintained at all times while the app is available on the Store, and it must link to a privacy policy that, among other things, accurately describes your app's data collection and use.
Free Shisen Sho uses your devices storage to store its settings. Free Shisen Sho does not collect any personal data, nor does it send the stored settings anywhere. In fact, it doesn't even include any network related features.