Paste a Google Play link (or package id) and see the app's own Data safety declaration, green and red flags first. What to make of each label is explained in the guide this tool comes from.
The listing declares
Data shared (passed to other companies)
Data collected
Everything shown is the developer's own self-declared listing data, fetched from Google Play and cached briefly. Always verify on the listing itself. Apple App Store links aren't supported yet (Apple offers no public API for privacy labels). No score on purpose: the reading is yours.