Privacy policy
In order for an app to be uploaded to the Google Play Store, a privacy policy needs to be defined.
"Adding a privacy policy to your app's store listing helps provide transparency about how you treat sensitive user and device data.
The privacy policy must, together with any in-app disclosures, comprehensively disclose how your app collects, uses, and shares user data. This includes the types of parties with whom it’s shared. You should consult your legal representative to advise you of what is required.
For apps that request access to sensitive permissions or data (as defined in the user data policies): You must link to a privacy policy on your app's store listing page and within your app. Make sure your privacy policy is available on an active URL, applies to your app, and specifically covers user privacy."