--- title: "Webinar: Why Accuracy is Everything in Device Identification" description: FingerprintJS Pro can detect a returning browser or device with 99.5% accuracy. Learn how Fingerprint Pro and our open source library differ, and why maximizing these metrics is so important for business outcomes. --- [![FP-Horizontal-OrangeBlack@2x (1)](https://try.fingerprint.com/hs-fs/hubfs/FP-Horizontal-OrangeBlack@2x%20(1).png?width=1600&height=281&name=FP-Horizontal-OrangeBlack@2x%20(1).png "FP-Horizontal-OrangeBlack@2x (1)")](http://fingerprint.com) Recorded Webinar # Why Accuracy is Everything in Device Identification Whether you are catching fraudsters or personalizing web experiences, the accuracy of your device identifier may be holding your solution back.   With the help of a machine learning system and additional identification techniques built on top of our proven open-source library, Fingerprint Pro can detect a returning browser or device with industry-leading accuracy. How do we back up this bold accuracy claim, and why should it matter to anti-fraud, product, and growth teams?   In this webinar, co-founder and Chief Technology Officer, Valentin Vasilyev and our Head of Product, Jack Spirou sit down to discuss how we calculate identifier accuracy and stability, how Fingerprint Pro and our open source library differ, and why maximizing these metrics is so important for business outcomes.   ### Sign up for our newsletter! [![Fingerprint-orange-white-logo](https://try.fingerprint.com/hs-fs/hubfs/FP-Horizontal-OrangeWhite@2x.png?width=286&height=50&name=FP-Horizontal-OrangeWhite@2x.png "Fingerprint-orange-white-logo")](http://fingerprint.com) 1440 W. Taylor St  #735, Chicago, IL 60607, USA marketing[@fingerprint.com](mailto:support@fingerprintjs.com) ###### Products [Device Intelligence](https://fingerprint.com/products/fingerprint-pro/) [Identification](https://fingerprint.com/products/identification/) [Smart Signals](https://fingerprint.com/products/smart-signals/) [Mobile Device Signals](https://fingerprint.com/mobile-app-detection/) [Bot Detection](https://fingerprint.com/products/bot-detection/) ###### General [Technical Demo](https://fingerprintjs.com/demo/) [Pricing](https://fingerprintjs.com/pricing/) [Support](mailto:support@fingerprintjs.com) [Terms of Use](https://dev.fingerprintjs.com/docs/terms-of-service) [Privacy Policy](https://dev.fingerprintjs.com/docs/privacy-policy) [Careers](https://fingerprint.com/careers/) [Login](https://dashboard.fingerprintjs.com/login) [System Status](https://status.fingerprintjs.com/) ###### Use Cases [Payment Fraud](https://fingerprintjs.com/payment-fraud/) [Account Takeover](https://fingerprintjs.com/account-takeover/) [Account Sharing ](https://fingerprint.com/products/account-sharing-prevention/) [New Account Fraud](https://fingerprint.com/new-account-fraud-prevention/) [Returning User Experience](https://fingerprint.com/returning-user-experience/) [SMS Fraud](https://fingerprint.com/sms-fraud/) [Paywall](https://fingerprint.com/paywall/) [![Visit twitter](https://try.fingerprint.com/hubfs/twitter.svg)](https://x.com/FingerprintJs/) [![Visit linkedin](https://try.fingerprint.com/hubfs/linkedin.svg)](https://www.linkedin.com/company/fingerprintjs/) Copyright 2025 © [Fingerprint](https://fingerprint.com/)|