Cybersecurity · head to head
Microsoft Sentinel vs Rapid7 InsightVM
Rapid7 InsightVM
Cybersecurity
Vulnerability management at scale
- From
- $1.62/month
- Rated
- -
The short version
- Only Microsoft Sentinel has a free tier, so it costs nothing to try first.
- Each has a real cost: Microsoft Sentinel billing is driven by the volume of log data ingested per day, so cost scales with log noise rather than with users or protected assets; Rapid7 InsightVM insightVM is now sold inside Exposure Command rather than as a standalone product
- They diverge on capability: Microsoft Sentinel covers AI-powered analytics, Rapid7 InsightVM covers Asset discovery.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Microsoft Sentinel and Rapid7 InsightVM actually diverge.
| Attribute | Microsoft Sentinel | Rapid7 InsightVM |
|---|---|---|
| Starting price | Free | $1.62/month |
| Free tier | Yes | No |
| Platforms | Web, Api | Web, Cloud, Api |
| Founded | 1975 | 2000 |
Identical on both: pricing model (usage-based), user rating (Not yet rated), category (Cybersecurity).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Microsoft Sentinel
- AI-powered analytics
- Fusion detection
- UEBA
- Automated response playbooks
- Hunting queries
- Workbooks
- Incident management
- Microsoft 365
Only in Rapid7 InsightVM
- Asset discovery
- Vulnerability scanning
- Risk prioritization
- Custom policies
- Remediation tracking
- Compliance reporting
- API access
- Slack
Both cover
- Threat intelligence
- AWS
- ServiceNow
- ISO 27001
- FedRAMP
What people use each for
The jobs each tool is most often brought in to do.
Microsoft Sentinel
- Cloud-based security information and event management (SIEM)not Rapid7 InsightVM
- Extended detection and response (XDR) across enterprise infrastructurenot Rapid7 InsightVM
- Data ingestion and long-term security analyticsnot Rapid7 InsightVM
Rapid7 InsightVM
- Vulnerability management and risk assessmentnot Microsoft Sentinel
- Web application security scanningnot Microsoft Sentinel
- Cloud infrastructure security monitoringnot Microsoft Sentinel
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Microsoft Sentinel
- Billing is driven by the volume of log data ingested per day, so cost scales with log noise rather than with users or protected assets
- Commitment tier discounts require reserving daily ingestion capacity in advance, and a tier cannot be downgraded until 31 days have passed
- Commitment tiers start at 100 GB per day, above what smaller estates ingest
- Charges for Log Analytics, Logic Apps and Machine Learning are billed separately on top of Sentinel itself
- The free allowance is only up to 5 MB per user per day for selected Microsoft 365 security logs
- Promotional commitment pricing is time limited and locks in only until a stated end date
Rapid7 InsightVM
- InsightVM is now sold inside Exposure Command rather than as a standalone product
- Rapid7 states pricing is not publicly listed and is provided by custom quote based on the customer's environment
- Billing counts billable assets including devices, software, identities, cloud compute instances and applications, so the asset count grows faster than a device inventory suggests
- Cloud security, compliance, infrastructure as code scanning and application security testing require the Ultimate package rather than Essentials
- Volume discounts are described as commonly available for larger asset counts, so smaller buyers pay the higher unit rate
Pricing, plan by plan
Microsoft Sentinel
Free- Pay-As-You-Go$2.46/day
- Per GB ingested
- 90-day retention
- First 31 days free for new workspaces
- Commitment TiersFree
- 100GB to 50TB tiers
- Up to 65% discount
- Predictable billing
- Microsoft 365 E5Free
- Free data ingestion for M365 logs
- Bundled with E5 license
Rapid7 InsightVM
$1.62/month- InsightVM$1.62/month per asset
- Vulnerability risk management
- Unlimited user accounts
- 24/7 technical support
- InsightAppSec$175/month
- Web application security
- Per application pricing
- Unlimited user accounts
- InsightCloudsec$5775/month
- Cloud security
- Up to 500 instances
- Unlimited user accounts
Which should you pick?
Choose Microsoft Sentinel if
- You need ai-powered analytics.
- You want to start without paying.
- You work on Web, Api.
- You also want fusion detection.
Choose Rapid7 InsightVM if
- You need asset discovery.
- You work on Web, Cloud, Api.
- You also want vulnerability scanning.
Questions people ask
- Is Microsoft Sentinel or Rapid7 InsightVM better?
- Neither clearly leads. Microsoft Sentinel starts at Free and Rapid7 InsightVM at $1.62/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Microsoft Sentinel or Rapid7 InsightVM?
- Microsoft Sentinel has a free tier; the other does not. Paid plans start at Free for Microsoft Sentinel and $1.62/month for Rapid7 InsightVM.
- Does Microsoft Sentinel or Rapid7 InsightVM run on more platforms?
- Microsoft Sentinel runs on Web, Api. Rapid7 InsightVM runs on Web, Cloud, Api.
- Can I use Microsoft Sentinel for free?
- Yes. Microsoft Sentinel has a free tier, so you can try it without paying. Rapid7 InsightVM starts at $1.62/month.
- What is Microsoft Sentinel best used for?
- Microsoft Sentinel is most often used for cloud-based security information and event management (siem), extended detection and response (xdr) across enterprise infrastructure, data ingestion and long-term security analytics. Of those, cloud-based security information and event management (siem) and extended detection and response (xdr) across enterprise infrastructure are not what Rapid7 InsightVM is typically brought in for.
- What can Microsoft Sentinel do that Rapid7 InsightVM cannot?
- Microsoft Sentinel covers AI-powered analytics, Fusion detection, UEBA, Automated response playbooks. Rapid7 InsightVM covers Asset discovery, Vulnerability scanning, Risk prioritization, Custom policies. Both handle Threat intelligence, AWS, ServiceNow, ISO 27001.
Answered from the vendors’ own pages
Microsoft Sentinel: How is Microsoft Sentinel pricing calculated?
Microsoft Sentinel uses a pay-as-you-go usage-based model where you pay only for data ingested, stored, and consumed. Flexible commitment tiers are available to reduce total cost of ownership, with specific rates not published on the public pricing page. Source: https://www.microsoft.com/security/business/siem-and-xdr/microsoft-sentinel/
SourceRapid7 InsightVM: What is the starting price for Rapid7 InsightVM?
InsightVM starts at $1.62 per month per asset, with example pricing provided for 500-asset deployments.
SourceMicrosoft Sentinel: Does Microsoft Sentinel require an Azure subscription?
Yes, Microsoft Sentinel requires a Microsoft Azure subscription to operate. Pricing is handled through Azure and varies based on data consumption and the commitment tier you select. Source: https://www.microsoft.com/security/business/siem-and-xdr/microsoft-sentinel/
SourceRapid7 InsightVM: How much does InsightAppSec cost?
InsightAppSec starts at $175 per month per application for web application security scanning.
SourceRapid7 InsightVM: What does InsightCloudsec cover?
InsightCloudsec starts at $5,775 per month for cloud security monitoring of up to 500 instances.
SourceRapid7 InsightVM: Do Rapid7 products include unlimited user accounts?
Yes, all Rapid7 products include unlimited user accounts, 24/7 technical support, single sign-on, and customer-success team access.
SourceRelated pages
More on Microsoft Sentinel
More on Rapid7 InsightVM
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