Microsoft Defender for Business vs Avast One

Microsoft Defender for Business9.4Visit Avast One8.5Visit

Higher score Microsoft Defender for Business #1 in Antivirus Software 9.4/10 30-day trial Free trial✓ 1 of 3 features Visit Microsoft

vs

Avast One #8 in Antivirus Software 8.5/10 Free plan Free plan✓ 1 of 3 features Visit Avast One

• Microsoft Defender for Business fits best

  Small businesses needing managed endpoint security

• Avast One fits best

  Broad protection with a free starting option

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Side by side

Feature	Microsoft Defender for Business 9.4/10 Visit ↗	Avast One 8.5/10 Visit ↗
At a glance
Editor score	9.4	8.5
Ranking	#1 in Antivirus Software	#8 in Antivirus Software
Best for	Small businesses needing managed endpoint security	Broad protection with a free starting option
Pricing model	Paid	Free plan + paid
Starting price	$3/user/mo	—
Free plan	—	✓ (best)
Free trial	30 days	—
Money-back guarantee	7 days	30 days
Deployment	Cloud, Mobile	Desktop, Mobile
Platforms	Web, Windows, macOS, iOS, Android	Windows, macOS, iOS, Android
Support	Docs	Community, Docs
Built for	Small business, Mid-market	Solo, Small business
Features Microsoft Defender for Business 1/3 · Avast One 1/3
Ransomware protection	✓	✓
Parental controls	Not checked yet	Not checked yet
Password manager	Not checked yet	Not checked yet
Specs
Protection scope	Complete security	Complete security
Device limit	5 devices	30 devices (best)
Supported platforms	Windows, macOS, iOS, Android	Windows, macOS, Android, iOS
Our review
Pros	EDR includes automatic attack disruption and automated remediation Protects Windows, macOS, iOS, and Android devices Includes vulnerability management, APIs, SIEM, and RMM integrations	Free starting plan with antivirus, web, and ransomware protection Covers Windows, macOS, Android, and iOS Adds VPN, firewall, webcam, scam, and breach monitoring tools
Cons	The listed price requires annual billing Coverage is limited to 300 users and five devices per user Server protection is available only as an add-on	The entry-level VPN is limited Paid plans add complexity across modules Pricing is region-dependent
Our verdict	Microsoft Defender for Business is an endpoint security solution for small and medium-sized organizations with up to 300 users. It combines next-generation antivirus with ransomware attack disruption, vulnerability management, attack… Read the review →	Avast One is a consumer security application for individuals and families protecting personal devices and online activity. It combines real-time antivirus protection with ransomware defense, malicious-website blocking, AI-assisted scam… Read the review →

Strengths and trade-offs

• Microsoft Defender for Business — where it wins

  • EDR includes automatic attack disruption and automated remediation
  • Protects Windows, macOS, iOS, and Android devices
  • Includes vulnerability management, APIs, SIEM, and RMM integrations

  Where it doesn't

  • The listed price requires annual billing
  • Coverage is limited to 300 users and five devices per user
  • Server protection is available only as an add-on

• Avast One — where it wins

  • Free starting plan with antivirus, web, and ransomware protection
  • Covers Windows, macOS, Android, and iOS
  • Adds VPN, firewall, webcam, scam, and breach monitoring tools

  Where it doesn't

  • The entry-level VPN is limited
  • Paid plans add complexity across modules
  • Pricing is region-dependent

• Microsoft Defender for Business9.4/10 · 30-day trial

  A focused endpoint security subscription with EDR and centralized controls for small businesses.

  Visit MicrosoftFull verdict →
• Avast One8.5/10 · Free plan

  A broad consumer security suite with free essentials and paid privacy and identity tools.

  Visit Avast OneFull verdict →