Antivirus

Avast Mobile Security offers a lot of features, but performs inconsistently, and its free version is full of ads.

Google Play Protect may be built into Android and may be totally free, but it can't adequately protect your device.

Lookout Security & Antivirus is a decent antivirus app, but its real strength lies in identity protection.

Kaspersky Mobile Security works well, but its feature set lags behind the times.

Qihoo 360 Security promises an extensive feature set, but many of the features don't work, and the free version is drowning in ads.

McAfee Mobile Security offers a lot of free features, but its malware protection is only average and its paid plan is pricey.

Norton Mobile Security has the best free plan of all the apps we tested.

With top-notch protection, useful extras and customization options, Kaspersky's 2020 lineup is the best that money can buy.

Bitdefender's 2020 line-up combines effective malware eradication with fast scans and just about every security feature you could wish for.

Bitdefender Antivirus for Mac is a strong package of security tools worth paying for. It's our Editor's Choice.

Kaspersky Internet Security for Mac has a strong package of security tools that are well worth paying for.

McAfee AntiVirus Plus' generous multi-license pricing makes this product an alluring option for families.

Norton Security Deluxe offers excellent malware protection for Macs and lots of features, but it's pricey and a little complicated to use.

Sophos Home Premium includes tons of features, but its Mac malware protections are untested.

Avast Free Mac Security is light on your system, but its malware detection is a tale of two report cards.

Unproven and lacking in special features, Malwarebytes for Mac Premium makes it hard to recommend spending money on it.

Malwarebytes doesn't replace antivirus software, but works alongside it to keep your system clean.

Norton's Windows antivirus products offer very good malware protection and extra privacy software, but lack some basic security features.

ESET's antivirus software has a remarkably light system impact, but its malware protection is average.

CM Security Master looks great and has a rich slate of features, but its malware protection can vary.

Kaspersky Free Antivirus delivers excellent protection with a moderate performance impact, but it has few extra features.

Bitdefender Antivirus Free Edition continues to be the best set-it-and-forget option among free antivirus products.

Panda Free Antivirus looks good and is easy to use, but its malware protection is unreliable.

Avast Free Antivirus offers lots of extra features, but its malware protection is mediocre and it may collect your browsing history.

Simple, straightforward and with decent malware protection, Windows Defender is a no-muss, no-fuss way to protect Windows computers.

Avira Free Antivirus has a heavy system load while providing only so-so malware protection.

AVG AntiVirus Free is light on its feet and easy to use, but it has mediocre malware protection, few extra features and some privacy concerns.

PSafe DFNDR is feature-rich and easy to use, but its malware protection is inconsistent and the free version has too many ads.

Avira may not charge for its Mac protection, but other free options provide better malware detection, system impact and design.