I've made a app privacy policy on the website, but do I need to create one in the app also ?
From Google developer support documents: https://support.google.com/googleplay/android-developer/answer/10144311
Post a privacy policy in both the designated field in the Play Console and within the app itself.
Do I need to create a page in the app dedicated for the privacy policy or should I make only a reference/link in the app to the policy page on the website ?
I added a privacy policy in the app and on the website, just to be sure. The app was accepted from the first try.
Even if google doesn't punish developers for not publishing privacy policies within the apps, they clearly state that you should do it.