Avast Antivirus vs Webroot

Avast vs. Webroot

Avast and Webroot take almost opposite approaches to antivirus protection, one built as a full, feature-heavy suite and the other stripped down for speed.

With that basic split in mind, here's how the two compare in the areas that matter most when choosing between them.

Range of services and platform focus

Avast offers a wide device lineup, with apps for Windows, Mac, Android, and iOS, and their antivirus plans range from a genuinely capable free tier up through Premium Security and Ultimate. Higher tiers add a firewall, Wi-Fi network inspection, and webcam protection, and Avast bundles some of these into their broader Avast One suite, though the antivirus core is the same product underneath the different names. They're built for people who want one company covering every device in the household without piecing together separate tools.

Webroot keeps their lineup simpler: three antivirus tiers (Basic, Plus, and Complete) plus a dedicated AntiVirus for Gamers option. Basic covers Windows only, while Plus and Complete extend to Mac, Android, iOS, and even Chromebooks, and Complete adds a LastPass-powered password manager and system cleanup tools. There's no free version, but the tier structure is straightforward, and they keep the focus narrowly on antivirus rather than a sprawling suite of extras.

Ease of use and system performance

Avast's interface is polished and easy for beginners to navigate, with clear toggles for each protection layer and enough customization for more advanced users to fine-tune scans and exclusions. That flexibility comes at a cost, though: full scans take longer, they use noticeably more CPU and RAM while running, and they tend to push more prompts for their other products, which can feel like clutter if all you want is antivirus protection.

Webroot's installer is famously small and finishes in seconds, and their interface stays out of the way with minimal pop-ups and quick scans that often finish in under a minute. That makes them a strong pick for older machines or anyone who wants security software they don't have to think about. Customization is more limited than Avast's, but for most everyday users, that trade-off is a fair one given how much lighter they run.

Security strength and innovation

Avast layers real-time scanning with a dedicated ransomware shield, phishing and web protection, and behavior-based detection, and they back those features with strong, consistent results from independent labs. AV-TEST has awarded them perfect or near-perfect scores across protection, performance, and usability in multiple 2025 and 2026 test cycles, and AV-Comparatives has logged detection rates in the high 90s with only a small number of false positives. That third-party verification is Avast's biggest edge: readers get proof, not just a company's own claims.

Webroot's innovation lies in their cloud-first design. Rather than storing a large local malware database, they check files against the cloud in real time, and they lean hard on behavior-based ransomware detection with a rollback feature that can undo changes if something slips through. 

The catch is verification: Webroot doesn't participate consistently in AV-TEST or AV-Comparatives, so there's little recent, independently confirmed data on their raw detection rate. They do submit to SE Labs, where they earned a AAA rating and 97% accuracy in late 2025, which is a genuine point in their favor, but it's a narrower body of evidence than what Avast has behind them.

Pricing and value

Avast Premium Security starts around $4.17 a month for the first year on one device, scaling up to ten devices for roughly $8 a month, though renewal prices rise noticeably after year one. Their free plan is a real option for basic protection, though it skips ransomware and phishing defenses, so budget-conscious users get a limited but functional safety net at no cost.

Webroot skips the free tier but starts cheaper on paid plans: Basic runs about $30 for the first year on one device, Plus adds mobile support for around $42, and Complete runs about $54 for five devices and includes the password manager and cleanup tools. They also back purchases with a 70-day money-back guarantee, well beyond the usual 30-day window, which softens the risk of trying them out.

Conclusion

Avast is the better fit if you want broad protection backed by consistent, independently verified lab results, and you're comfortable with a slightly heavier program running in the background. Webroot suits people who prioritize speed and a minimal footprint above all else, especially on older hardware, though you're trusting the company's own claims more than third-party testing to back up their detection ability. Neither is a bad choice, and they're solving different problems.