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Azure Monitor vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 20, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
7.0
Azure Monitor offers cost-effectiveness and proactive visibility, with pay-as-you-go flexibility and potential savings despite mixed ROI feedback.
Sentiment score
7.2
Splunk Enterprise Security enhances visibility, integration, and efficiency, streamlining operations and reducing costs, providing substantial returns for organizations.
I have noticed a return on investment with Splunk Enterprise Security, as it delivers substantial value for money.
Customers see the value in investing in this solution, particularly when it helps resolve issues quickly, turning a potential 20-hour response into one hour.
We are able to secure the environment from all security threats and maintain an environment that is free from threats and attacks, especially cyberattacks.
 

Customer Service

Sentiment score
6.1
Azure Monitor support is generally positive, with high-priority users obtaining quicker responses, while others report variable experiences.
Sentiment score
6.7
Splunk Enterprise Security support is knowledgeable, but response times vary; experienced engineers and licensed users report better outcomes.
However, the second-line support is good.
Users end up getting no resolution from their team because they're outsourced vendors, and they don't have deeper expertise over any of the products they are referring to.
If you want to write your own correlation rules, it is very difficult to do, and you need Splunk's support to write new correlation rules for the SIEM tool.
They try to close issues as soon as possible, often just offering documentation links.
They are responsive and effectively resolve issues.
 

Scalability Issues

Sentiment score
7.7
Azure Monitor efficiently scales across industries, integrating well with services, and reliably supports growing infrastructure and application needs.
Sentiment score
7.7
Splunk Enterprise Security excels in scalability and flexibility for data, despite potential cost increases with larger usage.
They struggle a bit with pure virtual environments, but in terms of how much they can handle, it is pretty good.
It is easy to scale.
It's big in a Central European context, and small from a Splunk North American context.
 

Stability Issues

Sentiment score
8.3
Azure Monitor is stable and reliable with high ratings, but could improve in alerting compared to competitors.
Sentiment score
7.9
Splunk Enterprise Security is praised for its stability and resilience, though occasional issues occur with complex queries or updates.
Azure Monitor is working fine, yet I face a costing issue as if there are a lot of logs collected in the workspace or in the center, it becomes very costly.
They test it very thoroughly before release, and our customers have Splunk running for months without issues.
It provides a stable environment but needs to integrate with ITSM platforms to achieve better visibility.
It is very stable.
 

Room For Improvement

Azure Monitor requires better integration, user experience, automation, alerting, support, cost clarity, and improved interface and performance monitoring.
Enhancements in UI, integration, support, and advanced features could improve Splunk Enterprise Security's usability, efficiency, and cost-effectiveness.
If Azure Monitor can independently add one gigabyte, two gigabytes, or five gigabytes at least to log storage, I can fix the logs without syncing with Log Analytics Workspace and Sentinel.
The cost skyrockets once you start using it, and there are complaints that the actual cost of the Kubernetes cluster was less than the cost they were incurring for Azure Monitor.
Improving the infrastructure behind Splunk Enterprise Security is vital—enhanced cores, CPUs, and memory should be prioritized to support better processing power.
Splunk Enterprise Security is not something that automatically picks things; you have to set up use cases, update data models, and link the right use cases to the right data models for those detections to happen.
For any future enhancements or features, such as MLTK and SOAR platform integration, we need more visibility, training, and certification for the skilled professionals who are working.
 

Setup Cost

Azure Monitor's flexible pricing is generally competitive, but costs can rise due to storage and integration needs.
Splunk Enterprise Security, despite high costs, is favored by large enterprises for its comprehensive features and robust capabilities.
When I export logs into the application, workspace, log analytic workspace, and into Sentinel to read reports, I need to add storage, which increases the cost.
I saw clients spend two million dollars a year just feeding data into the Splunk solution.
The platform requires significant financial investment and resources, making it expensive despite its comprehensive features.
Splunk is priced higher than other solutions.
 

Valuable Features

Azure Monitor provides seamless integration, robust security, dynamic alerting, and efficient reporting, enhancing user satisfaction with scalability and cost-effectiveness.
Splunk Enterprise Security enhances threat detection and incident response with advanced data analysis and integration from diverse sources.
Resource monitoring is essential.
The ease of access in Azure is significant because it's native to the platform and easy to integrate.
This capability is useful for performance monitoring and issue identification.
I assess Splunk Enterprise Security's insider threat detection capabilities for helping to find unknown threats and anomalous user behavior as great.
Splunk Enterprise Security provides the foundation for unified threat detection, investigation, and response, enabling fast identification of critical issues.
 

Categories and Ranking

Azure Monitor
Average Rating
7.6
Reviews Sentiment
7.0
Number of Reviews
55
Ranking in other categories
Application Performance Monitoring (APM) and Observability (5th), Cloud Monitoring Software (3rd)
Splunk Enterprise Security
Average Rating
8.4
Reviews Sentiment
7.6
Number of Reviews
312
Ranking in other categories
Log Management (2nd), Security Information and Event Management (SIEM) (1st), IT Operations Analytics (1st)
 

Mindshare comparison

While both are Application Lifecycle Management solutions, they serve different purposes. Azure Monitor is designed for Application Performance Monitoring (APM) and Observability and holds a mindshare of 6.7%, down 8.8% compared to last year.
Splunk Enterprise Security, on the other hand, focuses on Security Information and Event Management (SIEM), holds 9.5% mindshare, down 12.4% since last year.
Application Performance Monitoring (APM) and Observability
Security Information and Event Management (SIEM)
 

Featured Reviews

Muhammad Usman Khawar - PeerSpot reviewer
Native integration simplifies monitoring but documentation and cost improvements are needed
The ease of access in Azure is significant since it's native to the platform and easy to integrate. It has no maintenance overhead, and users don't have to navigate to another portal to get their desired result. It's the handiness that it has, rather than the features. The interpretation from the logs and injection requires custom runbooks. While it's complex, many services provide native insights and workbooks. It does the basic job quite efficiently. They added new kinds of metrics with more integrations to send out metrics. They have even added support for third-party tools that can be integrated. Azure Monitor is working on improvements and becoming more mature. Azure Monitor is stable and scalable. Azure Monitor is evolving with new workbooks and dashboards.
ROBERT-CHRISTIAN - PeerSpot reviewer
Has many predefined correlation rules and is brilliant for investigation and log analysis
It is very complicated to write your own correlation rules without the help of Splunk support. What Splunk could do better is to create an API to the standard SIEM tools, such as Microsoft Sentinel. The idea would be to make it less painful. In ELK Stack, Kibana is the query language with which you can search log files. I believe Splunk has also a query language in which they search their log files, but once you have identified the log file that you want to use for further security correlation, you want to very quickly transport that into your SIEM tool, such as Microsoft Sentinel. That is something that Splunk could make a little bit less painful because it is a lot of effort to find that log file and forward it. An API with Microsoft Sentinel or a similar SIEM tool would be a good idea.
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Comparison Review

VS
Feb 26, 2015
HP ArcSight vs. IBM QRadar vs. ​McAfee Nitro vs. Splunk vs. RSA Security vs. LogRhythm
We at Infosecnirvana.com have done several posts on SIEM. After the Dummies Guide on SIEM, we are following it up with a SIEM Product Comparison – 101 deck. So, here it is for your viewing pleasure. Let me know what you think by posting your comments below. The key products compared here are…
 

Answers from the Community

NC
Nov 17, 2021
Nov 17, 2021
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitoring information from different sources. Splunk is very good at alerting us if we have problems somewhere or if we are not getting the flow we expect. It is very easy to search for queries and events and then do analysis. The flexibility of the search capability is extremely valua...
See 2 answers
Shibu Babuchandran - PeerSpot reviewer
Oct 22, 2021
Hi @Netanya Carmi​, Below are some comparisons on features and Integrations.  Azure Monitor Splunk Full observability into your applications, infrastructure, and network. It provides sophisticated tools for collecting and analyzing telemetry that allow you to maximize the performance and availability of your cloud and on-premises resources and applications; Search, monitor, analyze and visualize machine data. Splunk Inc. provides the leading platform for Operational Intelligence. Customers use Splunk to search, monitor, analyze and visualize machine data.                                    IT Infrastructure Monitoring Features Application Monitoring √ √ Bandwidth Monitoring √ X Capacity Planning √ X Configuration Change Management √ √ Data Movement Monitoring √ √ Health Monitoring √ X Multi-Platform Support √ X Performance Monitoring √ √ Point-in-Time Visibility √ X Reporting / Analytics √ √ Virtual Machine Monitoring √ X                                                 Integrations Squadcast √ √ Amazon EKS X √ Amazon Redshift X √ Amazon Web Services (AWS) X √ Azure DevOps Services √ X Azure Logic Apps √ X Azure Stack √ X Beats √ X CMS Hub X √ CyberOne X √
Nov 17, 2021
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitoring information from different sources. Splunk is very good at alerting us if we have problems somewhere or if we are not getting the flow we expect. It is very easy to search for queries and events and then do analysis. The flexibility of the search capability is extremely valuable. Splunk works well with other solutions. It is very easy to set up and very straightforward to deploy. The more data you process with Splunk, the more expensive it gets; an improved pricing model is needed. It would be great if Splunk had more SIEM functionality with better customization and a better ticket tool. The on-premises scaling is a bit more limited than on the cloud. Splunk currently has some limited default rules and customizations. If they could concentrate more on compliance and security information, that would be an added bonus. Azure Monitor has made it significantly easier for us to monitor applications and infrastructure for possible problems. This solution offers a survey of surveillance in real time and a very helpful dashboard. Azure Monitor, which is integrated with Azure DevOps, has good load gathering and very good analytics. We get useful alerts with Azure Monitor that make recommendations about the security and the platform. There should be more specific detail about where problems lie. Azure Monitor is lacking somewhat in vulnerability assessment; this aspect could be better. Their automation also needs some improvement. From gathering metrics from more applications to getting processes quickly started when something goes down, automation should be better. Conclusion: For us, Splunk is the better solution. We use Splunk to search, monitor, analyze, and visualize machine data, which it does very well. The dashboard is very intuitive. The log collection and log management tools are very good. We find Splunk’s search capability to be very powerful and flexible. Splunk can access any kind of data and there is no limitation to the kind of structured or unstructured data you can extract. Our team also liked that Splunk offers better integration with more solutions.
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
13%
Manufacturing Company
8%
Government
7%
Financial Services Firm
15%
Computer Software Company
15%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

How does Splunk compare with Azure Monitor?
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitoring information from different sources. Splunk is very good at alerting us if we...
What do you like most about Azure Monitor?
Azure Monitor is a very easy-to-use product in the cloud environment.
What needs improvement with Azure Monitor?
The primary challenge is the documentation. The major challenge that remains is the costing factor for the logs ingestion. The cost skyrockets once you start using it, and there are complaints that...
What SOC product do you recommend?
For tools I’d recommend: -SIEM- LogRhythm -SOAR- Palo Alto XSOAR Doing commercial w/o both (or at least an XDR) is asking to miss details that are critical, and ending up a statistic. Also, rememb...
What is a better choice, Splunk or Azure Sentinel?
It would really depend on (1) which logs you need to ingest and (2) what are your use cases Splunk is easy for ingestion of anything, but the charge per GB/Day Indexed and it gets expensive as log ...
What do you like most about Splunk?
There are a lot of third-party applications that can be installed.
 

Overview

 

Sample Customers

Rackspace, First Gas, Allscripts, ABB Group
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Find out what your peers are saying about Azure Monitor vs. Splunk Enterprise Security and other solutions. Updated: May 2023.
856,873 professionals have used our research since 2012.