This application aims at studying the diversity of smartphone fingerprints and providing developers with data to help them design good defenses. This application collects an anonymous smartphone fingerprint without using a single permission (apart from the one providing access to the Internet) related to the device's configuration and operating system. The goal of our research is to understand if any application on the Play Store could identify users without relying on any given identifiers already present on Android.
Updated on
Nov 6, 2025
Tools
Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
BROKEN APP. Why do I have to use the Google Play store? I should be able to download directly from your site or Fdroid. if you're thinking about uniqueness, why are you demanding the Google Play store? Stops on content://com.android.contacts/settings and never continues even after 5 minutes.
Tim Maximilian (Tim)
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May 23, 2025
This app is maintained by researchers based in France and funded by public money. It aims to research device fingerprinting that is more advanced than just cookies in browsers. It is a much-needed scientific research issue. I am glad to be able to support this unique European research opportunity to share my data for a purpose of good!
1 person found this review helpful
Tommie
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June 2, 2026
doesn't work. Just stops at android.contact/settings i've tried for 15+ minutes again and again and again and again
What’s new
This version adds a new feature that allows you to activate notifications to remind you to re-scan your fingerprint in order to study its evolution.