By law, the privacy notice must be made available to interested parties, and it must be published and spread for the individuals (holders of the personal details) to be aware of it, and, if applicable, to oppose the use and transfer of their information.
There are many options to generate the privacy notice that corresponds to your mobile app.
1.- Enter Google Play Developer Console
2.- Select an app
3.- Select Google Play Store listings
5.- Select “Save Draft” (for new apps), or “Send Update” (for existent apps)