GravityZone Security for Mobile by Bitdefender is an on-device mobile security solution designed for iOS, Android, and ChromeOS devices. GravityZone Security for Mobile uses on-device machine learning to detect known and unknown threats by monitoring mobile device behavior, identifying malware-like apps, anomalous network traffic, and phishing attacks. It provides protection even when offline. GravityZone Security for Mobile is a cloud-only add-on with mobile agents for iOS and Android, and a chrome extension to secure chrome extensions on Chromebooks. The minimum operating system version supported is iOS 11 or Android 5.1.