Unbiased side-by-side comparison of verified reviews, user ratings, features, and pros/cons to help you decide which software fits your business needs.
In our 2026 comparison of Avast Online Security & Privacy and Duo Security, Duo Security comes out ahead overall (weighted score 89% vs 75% for Avast Online Security & Privacy). Avast Online Security & Privacy is rated 4.4/5 from 1 user review; Duo Security is rated 4.5/5 from 4 user reviews. Avast Online Security & Privacy has a free plan; Duo Security starts at $3/month.
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| At a glance | Avast Online Security & Privacy | Duo Security |
|---|---|---|
| Category | Security Software | Security Software |
| User rating | 4.4/5 (1 reviews) | 4.5/5 (4 reviews) |
| Starting price | Free plan | $3/mo |
| Listed features | 5 | 14 |
| Platforms | Chrome Extension, Browser Extension | Not specified |
| Ease of use | 4.7/5 | 4.5/5 |
| Customer support | 3.9/5 | 5.0/5 |
What each platform does and who it's for
The main classification for each product
Independent expert panel ratings and quality validations
Expert Score
Expert Score
Supported platforms across each product
Platform support not specified
No platform details listed for this software
Real-world pros and cons from verified users
User sentiment analysis
User sentiment analysis
Detailed side-by-side capability checklist
5/19 features
14/19 features
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Compare plans, features, and starting points side-by-side
Essential tools for growing teams.
Complete toolset with premium support.
Custom security and volume license scale.
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Real-time crowdsourced comparison feedback and buyer signals.
Real-time crowdsourced buyer signals
Agreement between algorithmic rating & user voting
Calculated by features, pricing, support & ratings.
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Capture high-intent Security Software evaluators
Data-backed performance comparisons across pricing, features, usability, and support
At-a-glance scorecard results
Normalized composite performance scores
Head-to-head decision matrix based on your business workflow
Dimension scorecard
Avast Online Security & Privacy is a runner-up with a composite score of 75%.
Avast Online Security & Privacy has the most accessible pricing (FREE (No Free Trial)).
Offers 5 features (fewer than the category leader).
Strong usability with a user rating of 4.7/5 stars.
Decent support with a user rating of 3.9/5 stars.
Not enough data on the other product(s) to rank this dimension fairly.
Dimension scorecard
Duo Security wins overall with a weighted score of 89% based on user rating, pricing, features, usability, and support.
Pricing: $3/mo (No Free Trial), a less accessible entry point than the leader.
Duo Security lists the most features (14 features).
Strong usability with a user rating of 4.5/5 stars.
Ranked #1 for support with a user rating of 5.0/5 stars.
No data available for this product on this dimension yet.
Duo Security scores higher across 4 of 11 key dimensions with a 14-point lead in our weighted analysis.
Duo Security scores higher across 4 of 11 key dimensions with a 14-point lead in our weighted analysis. The best choice still depends on your team's workflow, budget and required integrations — use the side-by-side sections above to check the details that matter to you.
Avast Online Security & Privacy is rated 4.4/5 from 1 user review. Duo Security is rated 4.5/5 from 4 user reviews. Ratings come from approved user reviews on SoftwareHope.
Avast Online Security & Privacy has a free plan. Duo Security starts at $3/month. Always confirm current pricing on the vendor's site, as plans change.
Avast Online Security & Privacy offers a free plan; Duo Security does not list a free plan or trial.
Avast Online Security & Privacy supports Chrome Extension and Browser Extension; platform support is not specified for the others.
Avast Online Security & Privacy has an ease-of-use rating of 4.7/5, Duo Security has an ease-of-use rating of 4.5/5. The difference is small, so both are similarly easy to adopt.
Community-voted helpful feedback from verified users
Avast Online Security & Privacy is a browser extension that adds security and privacy controls to supported browsers. It can warn about suspicious websites, reduce tracking, and simplify cookie choices without requiring users to switch their primary browser.
Partnering with Duo Security accelerated our development timeline significantly. Their engineering team demonstrated strong technical depth, adhering strictly to milestones and clean coding standards.
Our enterprise infrastructure integration was handled seamlessly by Duo Security. Communication was transparent, sprint deliveries were predictable, and architecture reviews were comprehensive.
The technical team at Duo Security proved to be dependable and knowledgeable across our full-stack modernization project. They resolved complex integration bottlenecks with high efficiency.
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