Ask HN: Privacy Policy for app when it doesn't collect any data

I have a simple free app on Google Play Store that does not collect any personal data, and does not have any tracking at all, even analytics. Google Play Store is asking to submit a privacy policy: "Apps that do not access any personal and sensitive user data must still submit a privacy policy." What would be easiest solution here? I'd like to keep it professional without risking rejection of app updates in the future. Most privacy policy templates are quite big and usually presumes one or other way of data collection.