The mobile-only Lookout Premium Plus watches for signs of identity theft and helps you recover, including a million-dollar insurance deal. On Android it also offers basic antivirus and antitheft features.
If you're going to buy any Avira software, Avira Prime is the one to get, as it includes every free and paid tool from Avira. However, even with its entire posse of apps it can't top the best cross-platform multi-device security suites.
CleanMyMac boasts a colorful, cheerful user interface and a wide range of tools to clean and tune your Mac. However, it lacks some features found in almost all competitors, the independent labs don't vouch for it, and the product's limitations meant we couldn't apply our usual hands-on tests.