stability.md

Identifiers stability

✅ – remains the same

🟡 – usually* remains the same

❌ – changes

Event	Android ID	Media DRM ID	GSF ID	Hardware Fingerprint	OS Fingerprint	Installed apps fingerprint	Device state fingerprint
Remove all Google accounts from the device	✅	✅	✅	✅	✅	✅	✅
Login back with the first Google account	✅	✅	✅	✅	✅	✅	✅
Factory reset	❌	🟡	❌	✅	❌	❌	❌
Repackaging the application	❌	❌	✅	✅	✅	❌	✅
System update	✅	✅	✅	🟡	❌	❌	❌
Different 'User' on the same device	❌	✅	❌	✅	✅	✅	❌
Instant App compared to a regular app	✅	✅	❌ (not available)	❌	❌	❌ (not available)	❌

* With an exception for some device manufacturers (e.g. Vivo or Samsung)