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The best Android antivirus apps offer not only excellent malware detection and prevention, but privacy and anti-theft features too. Most of these apps have a free service tier before you have to start paying yearly subscription fees, and some are entirely free. Some of the best Android antivirus apps will back up your contacts and other data, track your phone or tablet via GPS, snap a picture of a phone thief with the device's camera and even use your Wear OS smartwatch to locate your phone.
We've rounded up the biggest names in mobile antivirus protection — Avast, Bitdefender, Kaspersky, Lookout, McAfee, Norton and Google itself — and rated their Android apps based on setup, interface, usability, extra features and, of course, their anti-malware chops. To gauge security protection, we used data from AV-Test, an independent German lab that rates most major security apps on their ability to detect malware and other threats. We also used the Geekbench 4 app to measure the impact these apps have on overall Android performance.
Sadly for us, Norton has discontinued the excellent free tier of Norton Mobile Security and its anti-theft features, so you'll have to pay something to get any protection.
Avast Mobile Security and McAfee Mobile Security offer a lot of features for free and do fairly well in malware-detection tests. But Avast's anti-theft and call-blocking tools didn't work well, and both apps show lot of ads — unless you pay them not to.
The free version of Kaspersky Mobile Antivirus has no ads, and its call-blocking and anti-theft features work well. Its malware protection is very good, but it lacks a Wi-Fi network-security scanner. Yet there's little third-party lab-test data on Lookout's antivirus efficiency, so we don't really know how well it protects against malware. Sadly, it's terrible at protecting against malware.
You should rely on something else. For malware protection on other platforms, be sure to visit our pages on the best antivirus software and the best Mac antivirus. Bitdefender's Android security app has nearly flawless malware protection, a very light performance impact, Android Wear watch integration, a VPN client and a malicious-website blocker that works with most Android browsers. It also has robust privacy-protection tools, including an app lock, a Wi-Fi scanner, anti-theft features and data-breach notifications.
A newly added feature, Scam Alert, flags possibly malicious links in SMS text messages, messaging apps and screen notifications. Bitdefender Mobile Security offers a day trial period, but this is not a freemium app.
The separate Bitdefender Antivirus Free for Android app which is indeed totally free only scans for malware. The built-in VPN client gives you only MB of free data per data — just enough to check your email while traveling. It's our choice for the best Android antivirus app. Read our full Bitdefender Mobile Security review.
Norton Mobile Security, aka Norton , offers the best malware protection of any of the Android antivirus apps we tested. Unfortunately, it no longer has anti-theft functions, nor its contacts backups and Link Guard malicious-link blocker. Norton also killed Norton Mobile Security's free tier, which was the best among all the Android antivirus apps we'd recently tested. All of these subscriptions can be paid for right through the Norton app, which has a day free trial period.
Norton's killer feature is the unique App Advisor, which checks apps on your device for heavy data usage and unusual behavior. It also checks apps in the Google Play store for security and privacy risks even before you install them. Read our full Norton Mobile Security review. But while Avast's malware protection is good, it's far from perfect. Some of Avast's anti-theft functions didn't work for us, and its call-blocking feature didn't work at all.
It's since been removed. And the free version's ads and constant nags to upgrade are annoying and intrusive. Users of either paid plan also get additional anti-theft features, an app locker and tech support. Read our full Avast Mobile Security review. Kaspersky Mobile Antivirus, also known as Kaspersky Internet Security for Android, offers nearly-perfect malware protection, a small system impact and a call blocker that actually works.
There are no ads in the free version, and not much nagging to upgrade to the paid plan. Free users get call filtering, Android Wear support and a strong set of anti-theft functions, but you have to scan each new app manually. Paying users get automatic scans of new apps, an app lock and blocking of known phishing websites. And that's about it. There's no Wi-Fi network scanner and none of the privacy tools that other Android antivirus apps now offer. If you're just looking for malware protection, you can't really go wrong with Kaspersky Mobile Antivirus's free tier.
Read our full Kaspersky Mobile Antivirus review. Lookout Mobile Security, now rebranded as Lookout Security and Antivirus or Lookout Personal, was one of the first Android antivirus apps, and for a long time the best. Its ease of use, clean interface and lack of ads explain its continued popularity.
But Lookout's costs can rack up quickly. The free tier is bare-bones; it just scans for malware and locates lost phones. An unlimited VPN and a data-breach notification service make the premium price worthwhile. It might well be worth the expense. The trouble is that Lookout doesn't often submit its app to third-partly lab evaluations, so we don't really know how well Lookout protects against malware.
Its active scans are also slow and heavy. Like Avast, McAfee offers or used to offer a ton of useful features, but its free version is also full of ads and upsell suggestions. The malware protection is decent, if not fantastic. It's not really clear why this was done, other than to "adjust our product portfolio. You'll get some good stuff with the free version of McAfee Mobile Security, such as a way to track each app's data usage and a Wi-Fi security scanner. You can get one of the best VPN services to cover all your devices for less.
Read our full McAfee Mobile Security review. Google Play Protect comes built into every Android device that runs Google Play, and it would be great if it worked well.
Unfortunately, Google Play Protect's dismal malware detection makes the strongest possible argument for using a third-party Android antivirus app. We did like that Google Play Protect's interface is minimal, there are no ads and the system impact is light.
Some of Android's other built-in features, including Find My Device and Chrome Safe Browsing, mirror what third-party antivirus apps do on the side.
Google Play Protect's best feature is that Google can use it to remotely disable dangerous apps. This stays the case whether you're running third-party antivirus software or not. We recommend you not disable Google Play Protect. But overall, Google Play Protect is awful at protecting you from malicious apps.
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