Ranked in these QuestionsQuestion Ranking
Pro Minimal effect on performance and battery life
Lookout is a lightweight application that has a small influence on device performance such as start up times and battery life. Although when downloading applications there is a slight slow down because Lookout will scan every application.
Pro 96% detection rate result and 5.5/6 protection score from third party testing labs
Lookout received a detection rate result of 96% from AV Comparatives' mobile security review ahead of some but behind Kaspersky, Bitdefender, and Avast!. AV Test gave Lookout a 5.5/6 protection score and and a 6/6 usability score behind Kaspersky and Bitdefender and tied with Avast!.
Pro Heartbleed scanner
Lookout also offers the ability to check to see if your device is vulnerable to Heartbleed and if it has been affected with a separate application called Heartbleed Security Scanner. Unfortunately Lookout cannot fix the problem but it can warn you so you can alert the manufacturer and stop using your device.
Con Safe browsing, privacy advisor, and other features available only to premium users
Safe browsing (a feature that scans every link and site you visit), privacy advisor (manages and explains application permissions), remote lock, remote wipe, enhanced backup, and a few other features are reserved for premium users only. Fortunately though for antivirus purposes Lookout premium is unnecessary. Lookout premium is $3 a month.