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Avira 2020 Antivirus solutions review

Avira's free antivirus is good, but it's just the start

(Image: © Avira)

Our Verdict

Avira Antivirus Pro boasts good detection rates, but there's not quite enough extra power to justify the cost. If you're an Avira fan, either stick with the free version or choose one of the suites.


  • Top-rated protection in lab tests
  • Highly configurable
  • Easy access to other Avira apps


  • Very few features
  • Similar protection available in free edition
Please note

This is our all-in-one roundup reviewing every Avira consumer security solution for 2020. On this page, after our brief intro, you’ll find

(a) a full evaluation of the entry-level Avira Antivirus Pro, along with our reviews of the additional features incorporated with the rest of the range: 

(b) Avira Internet Security, and

(c) the top-end package Avira Prime, and

(d) a quick look at Avira Free.

You can jump to the reviews of those individual products by clicking on the links in the bar at the top of this page, but bear in mind that this article is really designed to be read all the way through, as the features of Avira Antivirus Pro are also present in the higher-level security suites, of course.

German security vendor Avira's consumer range starts with Avira Free Antivirus, an interesting product with a surprisingly lengthy feature list: antivirus, malicious URL filtering, PC optimization, VPN and more.

Be sure to check the small print, though. While the free product has a great antivirus engine, significant limitations include no scanning of downloads or email attachments, URL filtering via browser extensions only, and no customer support. There are ads, too.

Some of the extras aren't as impressive as they sound, either. The free version of the VPN, for example, limits you to a near useless 500MB a month, barely enough to run a single online speed test.

Upgrading to Avira Antivirus Pro gets you scanning of downloads, torrents and cloud storage, automated checks of USB devices, an extra layer of ransomware protection, faster cloud scanning, system-wide URL filtering and 'Premium' custom support. Pricing looks a fraction high at $45 for a one device, one-year license, but that's mostly because there's no introductory discount. There's better value as you extend your subscription, so for instance a three device, one-year license is a reasonable $58. (Bitdefender Antivirus Plus 2020 is $30 for year one, $60 on renewal.)

Avira Internet Security Suite adds a software updater and Avira's own password manager.

Avira Internet Security is available for $58 for a one-year, one-device license, or $71 to cover three devices. As with Antivirus Pro, there's no discount, and it looks a little overpriced for the feature you're getting.

Avira Prime offers the best value in the range, with its annual five-device license costing $100. That gets you everything in Internet Security, plus premium Android and iOS apps, Avira's hugely powerful PC speedup suite, and, crucially, unlimited use of Avira's Phantom VPN Pro. It's far from the best VPN we've seen (check out our full review here) but it covers the basics, and is worth $78 all on its own.

Overall, if you can live with Avira Free's limits or use Prime's VPN, these look like the pick of the range. Avira Antivirus Pro and Internet Security can't compete.

If you can't make up your mind, or you're just not ready to commit, Avira Prime has a 30-day trial, and all products are available on a monthly subscription (a single device is priced at $5 for Antivirus Pro, $6 for Internet Security, $10 for Prime.) That's an unusual but welcome touch which gives time to figure out if the suite works for you. The Prime plan is fair value, too - many VPN providers charge more than $10 for a monthly plan alone.

Avira Antivirus Pro


(Image credit: Avira)

Avira Antivirus Pro installed easily for us, with no technical hassles of any kind, not even a 'reboot now!' demand when it was all over.

The Antivirus Pro interface clearly displayed our security status, with four buttons highlighting its active protection modules (Real-Time, Ransomware, Web and Mail protection). It's all very straightforward, and one glance tells you everything you'll want to know.

Scan Types

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A Quick Scan button launches a basic check of your system, or clicking Scan on the left-hand sidebar displays buttons to run a full system scan, or launch a custom scan to check a specific area of the system.

Scanning Window

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Choosing a custom scan in most antivirus apps results in a prompt asking you which drive or folder you'd like to check. Avira gives you many more options, with predefined scans to check your Documents folder, the Windows folders, removable drives, active processes and more. You can also save new custom scans to check specific drives and folders, making it easier to recall them later.

You're not able to define how these custom scans work (file types to check or ignore, detection methods to use, and so on), as you can with Avast and some others. Avira's approach is an improvement on what we usually see, though, and manages to give more scanning control to expert users, while keeping everything very easy to use for everyone else.


(Image credit: AV Comparatives)


AV-Comparatives' Real-World Protection Test regularly checks 16 top antivirus engines against the very latest malware threats.

The July-October 2018 summary report saw Avira in a very impressive first place, blocking 100% of threats and raising just one false positive. (To put that in perspective, Windows Defender reached 9th place with a 99.3% detection rates and a very high 58 false positives.)

AV-Test's November-December Home User Windows report wasn't quite as impressive, with Avira blocking 'only' 99.4% of zero-day malware in one test. It reached 100% in the other three tests, though, enough to get a 6/6 rating and be awarded Avira's Top Product award.

As Avira Antivirus Pro claims to have top-quality ransomware detection, we decided to pit the program against our own custom ransomware simulator. This is very basic and doesn't use any stealthy malware tricks, but as we coded it ourselves, we knew it wouldn't be in Avira's signature database. The only way the package could detect our threat was by recognizing its behavior.

We launched our ransomware simulator, then watched as it successfully spidered through multiple folders in our test folder tree, encrypting more than 6,000 documents and data files, without Avira Antivirus Pro raising any alarm or making any attempt to spot it.

This isn't what we wanted to see. In our last reviews of Kaspersky and Bitdefender, for instance, the apps not only managed to detect and kill our test software, they also recovered the handful of files our simulator managed to encrypt.

However, these results should be interpreted carefully. We think our ransomware simulator is a good way to highlight tools with effective malware detection, but failing the test doesn't necessarily mean a package is bad.

Web Threat Blocked

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The reality is that our ransomware simulator wasn't real malware, and there's no way to be completely sure why Avira Antivirus Pro ignored it. This issue has to be a concern, but the reality is that AV-Comparatives and AV-Test regularly test Avira's engine against known and brand-new threats, and in these more thorough tests, the program performs very well.


(Image credit: Avira)


Browse Avira's Modules list and you'll find an On/ Off switch for a firewall, but don't get your hopes up, this isn't how it looks. There's no extra network protection here, it's just an alternative interface for the Windows firewall.

This doesn't do very much, beyond make it fractionally easier to turn the firewall on or off, and tweak a handful of settings for your network profiles. Accessing any of the more features - setting application rules, for instance - just opens the regular Windows firewall dialogs. If you really need to take control of the Windows firewall, you'd be better off learning to find your way around the standard interface.

Avira's Launcher enables installing several other free tools, but some are cut-down versions of other Avira products, and they're all available separately, whether you buy Avira Antivirus Pro or not.

Still, the Avira launcher does make them easy to install and access, and some of the apps might be useful. A simple password manager stores your logins and syncs them across your devices, for instance. And Avira's Privacy Pal enables customizing key Windows privacy settings, and has a file shredder to securely wipe your most confidential documents.

Final verdict

Avira Antivirus Pro has a great detection engine, but probably doesn't have enough functionality to justify using it instead of the free version. Even if you're happy to pay, competitors like Bitdefender give you more for a very similar price.

Avira Internet Security


(Image credit: Avira)

Avira Internet Security is a bundle of products which includes Avira Antivirus Pro, Software Updater Pro and Password Manager Pro.

Avira's Software Updater Pro is an easy-to-use patch manager which regularly checks for missing application updates, and can automatically install whatever it finds. There's nothing for you to download, and you won't see any installer apps.

Avira's Password Manager Pro generates secure passwords, automatically fills in login forms for you, and syncs new credentials across all your devices.

If you're used to security suites that come with a firewall, parental controls, maybe a spam filter, this could seem a little underpowered.

But if patch management and passwords are top of your priority list, it might be worth giving the suite a closer look.

Software Updater Pro

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Software Updater Pro

Avira's Software Updater Pro claims it automatically updates 'over 150 programs', which is less than many competitors. The freeware Patch My PC updates more than 300, others can handle many more. Software Updater's list is well chosen, though, and covers some very important apps and components: .NET, Acrobat Reader, CCleaner, Google Chrome, Firefox, IrfanView, Java, Opera,, TeamViewer, VLC Media Player, and updates for Windows and assorted Windows components and layers.

The package mostly worked as advertised for us. We installed some old versions of supported apps, Software Updater found a decent 8 updates, and silently downloaded and installed 7. It couldn't automatically update FileZilla, for some reason, but just getting an update alert was useful, and Software Updater also gave us a link to the FileZilla site where we could download and install it ourselves.

Driver Updates

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Software Updater can check for driver updates, too, although that's much less useful. If it told you that your NVVHCI Enumerator driver was out of date, for instance, what would you think? Could that be causing problems, should you update it? Or is it the latest version that's compatible with some other part of your system, and updating it would break your PC to the point it wouldn't even boot?

It's okay, we don't have the faintest idea, either. Software Updater's driver side might still be useful in that it could highlight a missing update which you can manually explore further, but that's about it. The vast majority of people will be better off leaving driver support to Windows Update.

We have some issues with Software Updater, then, but it's better than the patch managers you'll get bundled with most security suites. Most users will get some value from it, and if that's not you, you're an expert who hates this kind of tool, no problem - you can use it for manual checks only (no automatic updates at all), or just uninstall the module and focus on the rest of the suite.

Password Manager Pro

(Image credit: Avira)

Avira Password Manager Pro

Avira Password Manager Pro is easy to set up just about anywhere. Install the Windows, Mac, Android or iOS apps, or the Chrome, Firefox, Edge or Opera extensions, import any existing logins and you're ready to go.

The package includes a secure password generator, saves new credentials as they're entered and can automatically complete login forms when you return.

There's no form filling, though. You can't save names, addresses, credit card details or anything else; it's strictly passwords only.

Avira Password Manager Pro does have some advanced features. You can access your passwords with touch and face recognition, for instance, if they're supported on your device. Two-factor authentication enables logging in via a security code sent to your phone. And the app can alert you to weak or reused passwords, or raise a notification if one of your accounts might have been hacked.

If you don't have another password manager, Avira's offering will simplify your logins, and could help make your accounts far more secure.

The service can't begin to match the best of the competition, though, and if you're after real password management power, you should probably look elsewhere.

Overall, then, Avira Internet Security is a lot like Antivirus Pro - it's a decent package, but just doesn't have enough functions or features for us to recommend it ahead of the competition.

If you're after a more traditional security suite, particularly with a firewall and extra layers of network protection, you'll be better off elsewhere.

But if you like Avira, and are just not so interested in Software Updater and Password Manager, keep reading. Avira's high-end Prime bundle gives you a lot of more general-purpose power for a very fair price.

Avira Prime


(Image credit: Avira)

Top of Avira's consumer range is Avira Prime, a powerful bundle which comes crammed with essential functions and features.

The key security benefits are access to Avira's premium Android and iOS apps, and a license covering up to five devices.

The most valuable extra is full access to Avira's Phantom VPN Pro. And we do mean full access, with none of the data limits or user restrictions you'll often get with other security suite VPNs. The license enables using the VPN as much as you like, on as many devices as you need, just as though you'd purchased it separately (which would normally cost $78.)


(Image credit: Avira)

Experienced Windows users will also appreciate Avira's System Speedup Pro, a very full-featured PC optimization tool. Forget the feeble apps you've seen in other suites, which often do less than Windows' own Disk Cleanup - this outperforms many stand-alone specialist PC optimizers.

The suite is great value at just $100 for a five device, one-year license. If you'll make regular use of the VPN, that's one of the best deals you'll find anywhere, but even if you don't, Prime has more than enough power to justify a closer look. There's a 30-day trial available if you'd like to find out more.

Mobile Apps

(Image credit: Avira)

Mobile apps

Avira's free Android and iOS apps cover the antivirus basics, but upgrading to Avira Prime gets you the full commercial editions with one or two valuable extras.

The Android app gains automatic blocking of malicious websites, for instance, along with more frequent updates to protect you from the very latest threats.

Webcam and microphone protection ensure apps can't record you without authorization.

You're able to lock your most sensitive apps with a PIN code, and there's free customer support if you run into any problems.

Avira's iOS app is a bundle of more general security tools, including anti-theft, a call blocker, contents backup, network scanner and more. It might be worth having, depending on your needs, but it's not essential.

This isn't the longest list of upgrade benefits we've seen, but there's another major addition which applies to mobile devices, too. And it's coming up next.

Phantom VPN Pro

(Image credit: Avira)

Phantom VPN Pro

Avira Phantom VPN Pro doesn't have a market-leading feature list, but there's still a lot to like: 38 locations including multiple US cities, P2P support, a kill switch (on Windows), malicious URL blocking, optional automatic connection when you access a wireless network, mobile and desktop apps (Windows, Android, iOS, Mac) and a Chrome extension, too.

Although the full Avira Prime package covers up to five devices, Phantom VPN Pro covers as many as you need, an unusually generous touch.

The Windows app delivers on the basics. It's easy to use (choose a location, click Connect), performance is reasonable, we couldn't find any DNS leaks, the kill switch correctly blocked our internet connection when we forcibly dropped the VPN.

The service couldn't unblock BBC iPlayer, but the New York server got us into US Netflix, a better result than you'll get with many VPN providers.

Phantom VPN Pro doesn't offer much low-level control. You can't change or tweak its choice of protocol, for instance, and you can't manually set up the service on other devices.

It's still a decent service, though, which does everything most users will need, and adds a huge amount of value to the suite.

System Speedup Pro

(Image credit: Avira)

System Speedup Pro

Security suites often claim to include some kind of device optimization, but usually this means little more than deleting a few temporary files, something PC users can already do for free with Windows' own Disk Cleanup (often more effectively, too.)

Avira's System Speedup Pro is a rare exception, a tool with so many features and options that you might want to use it stand-alone.

Its quick cleanup tools check areas all across your PC, for instance: the Recycle bin, temporary files, browser junk, third-party leftovers, surplus reports and logs, even invalid Registry entries. This found more files to free up than CCleaner on our test system, a real achievement.

Power Cleaner

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Avira's Power Cleaner digs deeper into each category, and found a potential extra 8GB we could remove. Risky? Maybe, but the app does a lot to help. It displays warning icons next to every category where it might delete files you want to keep; expanding a category shows the types of files it can remove; you can expand any section to list the files to be deleted, and deciding to keep a set of files is as easy as clearing a checkbox. Even if something goes wrong, you're able to restore your original settings later.

Then there's the Startup Optimizer. Most tools just display a list of programs configured to start when Windows loads, and enables removing any you don't need. Speedup Pro comes with its own boot tracker which measures boot times and analyses apps to show you which has the most impact. And it goes further, with the ability to raise a notification if a system change increases your boot time, or an automatic optimization feature which keeps your system running smoothly at all times.

Maintenance Tools

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Even the Tools section comes stuffed with PC maintenance and privacy power. 


(Image credit: Avira)

There's a duplicate file finder, a software uninstaller, an undelete tool, file shredder, disk wiping, file encryption, a Windows service manager, disk doctor, a Windows troubleshooting app, game booster, Registry and disk defraggers, a context menu optimizer, power management tools, backup and restore tools, and more.

All system optimizers come with some risks, and non-technical users, or anyone looking for a quiet life, should probably leave System Speedup Pro alone.

If you've any Windows experience, though, and you appreciate the value of cleanup tools such as CCleaner, you'll find a huge amount to explore here. System Speedup Pro is an excellent PC maintenance tool which not only tramples all over the underpowered offerings in other security suites, but it outperforms many stand-alone PC optimizers, too.

In conclusion, Avira Prime leaves out many of the features you might expect in a security suite - there's no firewall, no spam filter, no parental controls, no backup - and if they're high on your priority list, that's going to be a problem.

The top-rated antivirus engine is a major plus, though, and if you'll use the bundled VPN, speedup suite and other tools, Prime will offer great value. Give it a try.

Avira Free Antivirus


(Image credit: Avira)

Avira Free Antivirus is a capable security app which uses Avira's top-rated engine to detect and block even the very latest malware.

Web-related features include blocking of malicious and phishing sites via Chrome and Firefox browser extensions. A password manager generates, stores and automatically enters secure passwords, there's a limited VPN (just 500MB a month data allowance), and a software updater to find and install missing application updates.

Missing Features

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There are some catches, too. Avira Free doesn't include automatic scanning of emails, downloads or USB devices, for instance. These are layers of protection you'll get with competitors like Avast, although Avira should still detect any threats if they're launched or when you're running scans.

The free package is also missing Avira's enhanced ransomware protection for the very latest, evolving threats. It'll still detect existing dangers and many others, but you're not getting the same level of security as paying customers.


(Image credit: Avira)


Avira Free Antivirus opens with a simple launcher of its various apps. Antivirus is top of the list, and extras like Software Updater, Password Manager, System Speedup tool and the browser extensions can be installed in a click or two.

The Avira Free interface is more cluttered than the paid edition, mostly because of its various ads. 'Get Pro', demanded one button. 'Register', suggested another. 'Unlock Avira Optimization Suite 2019', said a large banner at the bottom of the screen.


(Image credit: Avira)

Ignore all that and the app is easy enough to use. For example, you can run a quick scan immediately, or clicking Scan in the left-hand sidebar gives you options to run a full system scan, define a custom scan to check whatever you need, or schedule a scan to run automatically.

Other sidebar icons are on hand to access quarantined files, view system logs, and browse a few settings. Tap most of these icons and a panel pops out with more options, icons, menu items and status information. 

Although this looks complicated, there's less power than you might expect, and most of these areas can be safely ignored. For example, clicking Modules displays a menu of six product areas, but four of these aren't included with Avira Free (Ransomware, Web, Mail, Protection Cloud Plus). And if you click either of the two that are left - Real-Time Protection, Firewall - then all you can do is turn them on or off. 


The Avira Free Antivirus dashboard is mostly about scanning. You can run a Quick Scan from the Status screen with a click (this checked our PC in under 50 seconds), while full scans are only a couple of clicks away.

There are preset scans to check running processes, the Documents folder, your local drives, removable drives and more, and you can also build new custom scans of your own.

Avira Free Antivirus doesn't include the company's full-strength web protection to block malicious links; that's reserved for the commercial Pro version. Avira's Browser Safety and SafeSearch browser extensions offer reasonable protection, though only for Chrome and Firefox, highlighting dangerous results in your search results and blocking access to known malicious sites. If you're not using the extensions, you won't get the same protection, although Avira should still pick up known threats if they attempt to launch or they're opened by some other app.

Detection rates are good, too, with AV-Comparatives July-October 2019 summary report placing it first in a field of 15, successfully blocking 100% of test threats.

Elsewhere, Avira Free includes a firewall option, but as with Antivirus Pro, this just provides a new front end to help configure the Windows firewall and turn it on or off.

Once you've finished playing around with the antivirus, heading back to the launch enables easy installation for many other Avira tools. A few of these are worth having – there's a decent Password Manager – but others are limited, and require paid upgrades to be really useful. 

Forget about the extras, then - Avira Free Antivirus' core protection is what really counts. The lack of system-wide URL filtering is a concern, but Avira's real-time monitoring should still detect malware before it can do any harm, and, on balance, Avira Free Antivirus still does a capable job of keeping you safe.