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Datadog vs Splunk ITSI (IT Service Intelligence) comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 2026

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
6.5
Datadog is praised for high ROI, cost-effectiveness, reducing downtime, optimizing infrastructure, and improving efficiency and reliability.
Sentiment score
5.8
Splunk ITSI users achieve cost savings, efficiency boosts, reduced downtime, streamlined tasks, and enhanced monitoring and incident management.
Previously we had thirteen contractors doing the monitoring for us, which is now reduced to only five.
IT Manager at Liberty Mutual Insurance
Datadog has delivered more than its value through reduced downtime, faster recovery, and infrastructure optimization.
Sr. Cloud Infrastructure Engineer at a tech vendor with 51-200 employees
We have also seen fewer escalations for minor issues because alerts help us catch problems earlier, which indirectly reduces downtime and improves overall efficiency.
Network Security Consultant at NTT DATA
We estimate a 30 to 35 percent saving on resource costs and around 25 to 30 percent savings on inventory expenses, all credited to utilizing Splunk ITSI (IT Service Intelligence) effectively.
SIEM Splunk Engineer/Architect at Cepheid
Risks can mean that if one failure happens, it can result in risks in hundreds of thousands of USD.
Technology And Digitization Lead at JLL
It has saved me a lot of money and a lot of time.
IT Associate at Accenture
 

Customer Service

Sentiment score
6.7
Datadog's support is responsive and helpful, though some users seek faster resolutions and consistent communication for complex issues.
Sentiment score
6.7
Splunk ITSI support is praised for expertise and quick resolutions but criticized for delays and outsourced support issues.
When I have additional questions, the ticket is updated with actual recommendations or suggestions pointing me in the correct direction.
Applications Web Services Technical Engineer at Ace Hardware
Overall, the entire Datadog comprehensive experience of support, onboarding, getting everything in there, and having a good line of feedback has been exceptional.
Systems Administrator at Townsquare Interactive
I've had a couple instances where I reached out to Datadog's support team, and they have been really super helpful and very kind, even reaching back out after resolving my issues to check if everything's going well.
Security Engineer at Invitation Homes
The technical support is excellent, and I would rate it at ten.
Senior consultant at a tech services company with 51-200 employees
We typically have weekly calls with the technical staff, and whenever we encounter issues, they usually reply with solutions within one or two days.
Senior Consultant at a consultancy with 10,001+ employees
I would rate Splunk ITSI (IT Service Intelligence) support at nine or 9.5 because it is a highly effective and handy tool.
Splunk Developer ( Training & Enablement) at DXC Technology
 

Scalability Issues

Sentiment score
7.6
Datadog offers scalable performance across varied environments, integrates with cloud services, but requires budget monitoring as data grows.
Sentiment score
7.7
Splunk ITSI efficiently scales with growing data, though costs and hardware requirements can impact scalability in larger environments.
Datadog's scalability has been great as it has been able to grow with our needs.
IT Manager at Liberty Mutual Insurance
Since it is a SaaS platform, we did not have to worry about backend scaling.
Network Security Consultant at NTT DATA
We have not faced any major performance issues from the platform side; it handles increased metrics and monitoring loads smoothly.
Cyber Security Consultant at ProTechmanize
Splunk is highly scalable, with the ability to expand efficiently.
Senior consultant at a tech services company with 51-200 employees
When we create Glass Tables containing many searches, the Glass Tables sometimes fail due to memory constraints, and we receive error pages.
Senior Consultant at a consultancy with 10,001+ employees
Splunk ITSI (IT Service Intelligence) scalability allows us to predict analytics such as service degradation and perform root cause analysis through metrics, logs, and traces.
Sr. Technical Manager at Vodafone
 

Stability Issues

Sentiment score
8.0
Datadog is praised for its stability, consistent uptime, swift issue resolution, and robust performance, even during peak times.
Sentiment score
7.7
Splunk ITSI is reliable with high stability ratings, minor slowness during heavy use, and occasional configuration challenges.
Metrics collection and alerting have been consistent in day-to-day use.
Cyber Security Consultant at ProTechmanize
Datadog is very stable, as there hasn't been any downtime or issues since I've been here, and it's always on time.
Security Engineer at Invitation Homes
Datadog seems stable in my experience without any downtime or reliability issues.
Full Stack Developer at Townsquare Interactive
The setup, however, must be done correctly as incorrect deployment can lead to issues.
Senior consultant at a tech services company with 51-200 employees
Splunk ITSI (IT Service Intelligence) fails if you do not have good hardware requirements.
Senior Consultant at a consultancy with 10,001+ employees
I would rate the stability of Splunk ITSI (IT Service Intelligence) as a perfect ten; it is an extremely stable tool.
Splunk Developer ( Training & Enablement) at DXC Technology
 

Room For Improvement

Datadog should enhance AI, improve customization, offer real-time insights, and optimize transparency for better user experience and performance.
Splunk ITSI requires simplified configuration, enhanced features, improved performance, and better scalability to address user concerns effectively.
It would be great to see stronger AI-driven anomaly detection and predictive analytics to help identify potential issues before they impact performance.
Operations Manager at a financial services firm with 1,001-5,000 employees
We want to be able to customize the cost part, and we would appreciate more granular access control.
Service Manager at PwC
Having more transparent and granular cost control features would make it easier to manage usage.
Network Security Consultant at NTT DATA
I would appreciate additional features in the next release of Splunk ITSI (IT Service Intelligence) such as cloud infrastructure monitoring including CICDs, Kubernetes, and similar technologies.
Director at Techpace
On-cloud upgrades are easy, but on-premises upgrades are very painful.
Technology And Digitization Lead at JLL
If Splunk ITSI (IT Service Intelligence) could handle real-time call-outs automatically—not just incident creation—this would reduce our dependency on PagerDuty and consolidate processes within Splunk ITSI (IT Service Intelligence).
Monitoring Dev Ops Engineer at Centrica
 

Setup Cost

Datadog offers flexible, usage-based pricing favored by SMEs, but enterprise users face complexity and potential high costs for new features.
Splunk ITSI, while offering premium services, is considered costly due to data volume-based pricing and varying licensing models.
The setup cost for Datadog is more than $100.
Senior Performance and Architecture Analyst at a manufacturing company with 10,001+ employees
Pricing is mainly based on data ingestion, such as logs, metrics, and traces, and it can increase quickly if everything is enabled by default.
Cyber Security Consultant at ProTechmanize
Everybody wants the agent installed, but we only have so many dollars to spread across, so it's been difficult for me to prioritize who will benefit from Datadog at this time.
Applications Web Services Technical Engineer at Ace Hardware
Splunk ITSI tends to be more expensive compared to some open-source solutions.
Senior consultant at a tech services company with 51-200 employees
I believe the pricing is based on daily volume ingestion.
Senior Consultant at a consultancy with 10,001+ employees
The pricing reflects usage levels, and compared to others in the market, Splunk ITSI (IT Service Intelligence) provides a reasonable solution.
Works at a tech services company with 1,001-5,000 employees
 

Valuable Features

Datadog offers seamless integration, real-time monitoring, and cost-effective performance insights, making it highly favored for centralized application management.
Splunk ITSI offers intelligent alerting, predictive analysis, customizable dashboards, and integration for enhanced operational efficiency and incident management.
Our architecture is written in several languages, and one area where Datadog particularly shines is in providing first-class support for a multitude of programming languages.
Senior Software Engineer at Los Angeles Times Communications, LLC
Having all that associated analytics helps me in troubleshooting by not having to bounce around to other tools, which saves me a lot of time.
Senior Site Reliability Engineer at a wholesaler/distributor with 5,001-10,000 employees
Datadog was able to find the alerts and trigger to notify our team in a very prompt manner before it got worse, allowing us to promptly adjust and remediate the situation in time.
Security Engineer at Invitation Homes
The predictive analysis can give you proactive information about potential bottlenecks that can occur on applications, desk, storage, SQL servers, databases, or other systems.
Director at Techpace
One valuable feature is the scheduled maintenance window provided by Splunk ITSI (IT Service Intelligence) because Splunk does not offer this scheduling maintenance feature in the core product, but Splunk ITSI (IT Service Intelligence) helps us with these maintenance reports.
Senior Consultant at a consultancy with 10,001+ employees
The most beneficial aspect for me is that it is AI-enabled, providing us with very good analytics.
Technology And Digitization Lead at JLL
 

Categories and Ranking

Datadog
Ranking in Application Performance Monitoring (APM) and Observability
1st
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
210
Ranking in other categories
Network Monitoring Software (4th), IT Infrastructure Monitoring (2nd), Log Management (4th), Container Monitoring (3rd), Cloud Monitoring Software (1st), AIOps (1st), Cloud Security Posture Management (CSPM) (5th), AI Observability (1st)
Splunk ITSI (IT Service Int...
Ranking in Application Performance Monitoring (APM) and Observability
10th
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
63
Ranking in other categories
IT Alerting and Incident Management (3rd)
 

Mindshare comparison

As of May 2026, in the Application Performance Monitoring (APM) and Observability category, the mindshare of Datadog is 4.7%, down from 9.3% compared to the previous year. The mindshare of Splunk ITSI (IT Service Intelligence) is 0.8%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Performance Monitoring (APM) and Observability Mindshare Distribution
ProductMindshare (%)
Datadog4.7%
Splunk ITSI (IT Service Intelligence)0.8%
Other94.5%
Application Performance Monitoring (APM) and Observability
 

Featured Reviews

Dhroov Patel - PeerSpot reviewer
Site Reliability Engineer at Grainger
Has improved incident response with better root cause visibility and supports flexible on-call scheduling
Datadog needs to introduce more hard limits to cost. If we see a huge log spike, administrators should have more control over what happens to save costs. If a service starts logging extensively, I want the ability to automatically direct that log into the cheapest log bucket. This should be the case with many offerings. If we're seeing too much APM, we need to be aware of it and able to stop it rather than having administrators reach out to specific teams. Datadog has become significantly slower over the last year. They could improve performance at the risk of slowing down feature work. More resources need to go into Fleet Automation because we face many problems with things such as the Ansible role to install Datadog in non-containerized hosts. We mainly want to see performance improvements, less time spent looking at costs, the ability to trust that costs will stay reasonable, and an easier way to manage our agents. It is such a powerful tool with much potential on the horizon, but cost control, performance, and agent management need improvement. The main issues are with the administrative side rather than the actual application.
DS
Senior Consultant at a consultancy with 10,001+ employees
Service health has been monitored and visual insights support proactive telecom operations
The installation process is the first aspect I dislike about Splunk ITSI (IT Service Intelligence). If you do not configure it correctly, you will encounter issues in the search head. Because we use a distributed environment where each component has its own specific roles, installation is critical and requires careful attention. Splunk ITSI (IT Service Intelligence) is built with many applications. It is a compressed file, and when you extract the Splunk ITSI (IT Service Intelligence) app, you receive approximately 19 apps. Some applications, add-ons, and packages must be installed on specific components. If you do not configure an application correctly, it will not work. Sometimes we encounter issues during installation because of this complexity. I believe the installation process should be more uniform, meaning it could be deployed across all components to avoid post-installation issues. Sometimes after installation, you receive errors, and users cannot access Splunk ITSI (IT Service Intelligence). We have experienced this type of issue due to installation errors. I believe there is currently room for improvement regarding scalability. When we create Glass Tables containing many searches, the Glass Tables sometimes fail due to memory constraints, and we receive error pages. Splunk ITSI (IT Service Intelligence) should have a lightweight version to address these concerns. I would rate current scalability as medium.
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Top Industries

By visitors reading reviews
Financial Services Firm
14%
Computer Software Company
9%
Manufacturing Company
8%
Healthcare Company
6%
Financial Services Firm
16%
Manufacturing Company
10%
Outsourcing Company
6%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business82
Midsize Enterprise47
Large Enterprise100
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise10
Large Enterprise43
 

Questions from the Community

Any advice about APM solutions?
There are many factors and we know little about your requirements (size of org, technology stack, management systems, the scope of implementation). Our goal was to consolidate APM and infra monitor...
Datadog vs ELK: which one is good in terms of performance, cost and efficiency?
With Datadog, we have near-live visibility across our entire platform. We have seen APM metrics impacted several times lately using the dashboards we have created with Datadog; they are very good c...
Which would you choose - Datadog or Dynatrace?
Our organization ran comparison tests to determine whether the Datadog or Dynatrace network monitoring software was the better fit for us. We decided to go with Dynatrace. Dynatrace offers network ...
What is your experience regarding pricing and costs for Splunk ITSI (IT Service Intelligence)?
From a pricing perspective, it is not that bad because we get it from a distributor and do not purchase it directly from Splunk. We get it from a distributor who gives the pricing to a partner and ...
What needs improvement with Splunk ITSI (IT Service Intelligence)?
In terms of improvements for Splunk ITSI (IT Service Intelligence), I would suggest adding more out-of-the-box plugins and adapters, especially as there is a high demand for observability and dashb...
 

Overview

 

Sample Customers

Adobe, Samsung, facebook, HP Cloud Services, Electronic Arts, salesforce, Stanford University, CiTRIX, Chef, zendesk, Hearst Magazines, Spotify, mercardo libre, Slashdot, Ziff Davis, PBS, MLS, The Motley Fool, Politico, Barneby's
TransUnion, Cox Automotive, Carnival Cruises, Leidos, Econocom, National Ignition Factory, Entrust Datacard, Molina Healthcare, United States Census Bureau
Find out what your peers are saying about Datadog vs. Splunk ITSI (IT Service Intelligence) and other solutions. Updated: April 2026.
893,221 professionals have used our research since 2012.