Documented product tests and assessments are pending. We therefore currently publish no scores or test winners. Selections use recorded product features.

2026

Avast vs Microsoft Defender

Avast and Microsoft Defender compared side by side: protection, performance, pricing, and features. Which antivirus suits you better?

Avast

Avast Premium Security is one of the most recognisable antivirus brands and offers solid protection for up to 10 devices. The suite includes web protection, VPN, and anti-tracking features. Platform coverage is broad – from Windows and Mac to mobile devices. Avast has faced past criticism over data privacy practices, which have since been addressed. Pricing is fair but not always the cheapest.

Recorded introductory priceCHF 37.90 Recorded renewal priceCHF 74.90 PlatformsWindows, Mac, Android, iPhone / iPad

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Microsoft Defender

Microsoft Defender comes pre-installed on every Windows PC and provides solid baseline protection against malware, phishing, and ransomware. In independent tests, Defender now performs well and is often sufficient for users with cautious browsing habits. However, anyone who needs VPN, password manager, extended web protection, or parental controls should consider a paid suite. As a free reference point, Defender is the most important comparison benchmark.

Recorded introductory priceCHF 0.00 Recorded renewal priceCHF 0.00 PlatformsWindows

Our Verdict

Complete ratings are missing for an overall comparison.

Recorded overall rating: Avast —/10, Microsoft Defender —/10. The overall score is the average of six criteria.

Performance rating: Avast —/10, Microsoft Defender —/10. Higher points indicate a better rating for this criterion.

Prices are indicative. Check the current amount, currency, contract term and renewal conditions with the provider. Different contract terms are not directly comparable.

Feature-by-feature comparison

Listed features refer to the product range. They may require a different plan or an additional payment and may vary by platform. Check what your selected plan includes.

Criterion	Avast	Microsoft Defender
Real-time protection	In the product range	In the product range
Built-in VPN	In the product range	Not confirmed
Password manager	Not confirmed	Not confirmed
Anti-tracking / anti-phishing	In the product range	Not confirmed
Parental controls	Not confirmed	Not confirmed
Identity protection	Not confirmed	Not confirmed
Low system impact	Not confirmed	In the product range
Platforms	Windows, Mac, Android, iPhone / iPad	Windows
Number of devices (standard licence)	10 devices	1 device
System impact in daily use	—	—

More comparisons with Avast

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Frequently asked questions about Avast vs Microsoft Defender

How are Avast and Microsoft Defender rated overall?

Complete ratings are missing for an overall comparison. Recorded overall rating: Avast —/10, Microsoft Defender —/10. The overall score is the average of six criteria.

How do their performance ratings compare?

Performance rating: Avast —/10, Microsoft Defender —/10. Higher points indicate a better rating for this criterion.

What should I check when comparing prices?

Prices are indicative. Check the current amount, currency, contract term and renewal conditions with the provider. Different contract terms are not directly comparable.

Does the plan include every listed feature?

Listed features refer to the product range. They may require a different plan or an additional payment and may vary by platform. Check what your selected plan includes.