Microsoft Sentinel vs Splunk: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Microsoft Sentinel and Splunk side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Microsoft Sentinel
Cloud-native SIEM by Microsoft
Best for you if:
- • You want cloud-native SIEM solution
Splunk
Data platform for security and observability
Best for you if:
- • You want powerful search
| At a Glance | Microsoft Sentinel | Splunk |
|---|---|---|
Starts at | From $342.52/mo Commitment Tier 100GB plan | Not published |
Category | Security Log Management | Log Management Analytics |
Rating | 4.4/5 G2 4.4 298 reviews | 4.4/5 G2 4.3 · Capterra 4.6 697 reviews |
Free plan | No | No |
Watch out for | Data retention beyond 90 days costs extra | Overage fees for exceeding negotiated limits. |
Choose Microsoft Sentinel or Splunk?
Choose Microsoft Sentinel if
- You want cloud-native SIEM solution
- You want AI-powered threat detection
- You work in security, not log management
Choose Splunk if
- You want powerful search
- You want enterprise features
- You work in log management, not security
In-Depth Analysis
Microsoft Sentinel
Cloud-native SIEM by Microsoft
Microsoft Sentinel's pricing offers a fair balance, especially with the Pay-As-You-Go option at $5.22/GB for maximum flexibility.
Watch out
Data retention beyond 90 days costs extra
Strengths
- Pro: Cloud-native SIEM solution
- Pro: AI-powered threat detection
- Pro: Integrates with Azure ecosystem
- Pro: Scalable security analytics
- Pro: Automated incident response
Weaknesses
- Con: Azure subscription required
- Con: Cost based on data ingestion
- Con: Complex setup and tuning
- Con: Security expertise needed
- Con: Learning curve for SOC teams
Key features
Splunk
Data platform for security and observability
The lack of transparent pricing for any tier (Workload, Ingest, Entity, Activity-based) suggests it can be expensive, requiring direct engagement for quotes.
Watch out
Overage fees for exceeding negotiated limits.
Strengths
- Pro: Powerful search
- Pro: Enterprise features
- Pro: Great visualizations
Weaknesses
- Con: Very expensive
- Con: Complex pricing
Key features
Plans and prices: Microsoft Sentinel vs Splunk
| Tool | Plans and prices | Source |
|---|---|---|
| Microsoft Sentinel |
| azure.microsoft.com/products/microsoft-sentinel read Oct 3, 2026 |
| Splunk |
| splunk.com/pricing read Oct 31, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Microsoft Sentinel pricing and Splunk pricing.
Key Takeaways
Microsoft Sentinel
- Choose if you want cloud-native SIEM by Microsoft
Splunk
- Choose if you want data platform for security and observability
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- User ratings are within 0.2 points (4.4/5 from 298 reviews for Microsoft Sentinel, 4.4/5 from 697 reviews for Splunk).
- Microsoft Sentinel starts at $342.52/mo; Splunk has no public paid plan price on file.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Microsoft Sentinel and Splunk compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. User ratings are within 0.2 points (4.4/5 from 298 reviews for Microsoft Sentinel, 4.4/5 from 697 reviews for Splunk). Microsoft Sentinel starts at $342.52/mo; Splunk has no public paid plan price on file.
What are Microsoft Sentinel and Splunk used for?
Microsoft Sentinel: Cloud-native SIEM by Microsoft. Splunk: Data platform for security and observability.
What does Microsoft Sentinel cost vs Splunk?
Microsoft Sentinel's cheapest paid plan is Commitment Tier 100GB at $342.52/mo. Splunk has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Oct 31, 2026.
What's the main difference between Microsoft Sentinel and Splunk?
Microsoft Sentinel's main strength: cloud-native SIEM solution. Splunk's main strength: powerful search.