avast! Mobile Security (free) provides a wide range of functionality, including a Virus Scanner that enables on-demand scans of all apps installed on the device and SD card, along with scans of any newly installed apps upon initial execution. The Privacy Advisor displays the access rights and intents of installed apps, identifying any potential privacy risks. The Application Manager shows a list of running apps along with their size, CPU load, used memory, and number of threads and services, and enables the user to stop or uninstall any app as needed. The Web Shield scans every URL loaded on the device, and warns the user if a malware-infected site is being accessed. The SMS and Call Filter can be used to filter calls and/or messages from the user's contact lists. The Firewall, usable only on rooted phones, can disable an app's Internet access when on Wi-Fi, 3G, and roaming networks. Finally, Anti-Theft features include the ability to disguise the app with a custom name, to hide the app icon in the app tray, and more. If a device is lost or stolen, it can be remotely prompted to sound a siren, lock, display a custom message, be located on a map, be wiped remotely, and more.