Trend Micro Mobile Security
We also examined Trend Micro's Mobile Security. The full app is $3.99, but a 30-day trial is free. Mobile Security, unlike Lookout, provides call and SMS filtering and blocks unwanted calls or messages. A realtime scan zeros in on malware on a device, and Mobile Security appears to scan files just as an antivirus application would scan a Windows PC -- although on our Android phone it was a lot quicker and provided much less granular detail on the results.