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IBM Instana Observability vs Splunk ITSI (IT Service Intelligence) comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 16, 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
6.0
IBM Instana Observability boosts efficiency with quick issue identification, reduces costs, and improves response times and application performance.
Sentiment score
7.5
Splunk ITSI quickly delivers ROI by enhancing visibility, reducing costs, and improving performance with centralized data and efficient analytics.
It provides a single pane of glass from which I can see what is happening with all the servers in my infrastructure, which saves time.
UNIX/LINUX, ENTERPRISE SERVER AND STORAGE ADMINISTRATOR at Fidelity Bank Plc
It made a notable difference from when we were almost blind to being able to respond to calls immediately.
Software engineer at EJADA
If we have a monitoring tool, we can save our transactions and see the performance of the application using MTTR and MTTD.
Technical Manager, Consulting at a outsourcing company with 1,001-5,000 employees
 

Customer Service

Sentiment score
6.4
IBM Instana support is mixed, with varied responsiveness, reliance on local teams, and average ratings between five and six.
Sentiment score
6.3
Splunk ITSI support is generally good, but experiences vary by company size and issue, with occasional delays reported.
They are very slow to respond and integrate new features.
DevOps engineer at Yara International
IBM support for Instana is responsive and helpful.
UNIX/LINUX, ENTERPRISE SERVER AND STORAGE ADMINISTRATOR at Fidelity Bank Plc
We did have experiences where a significant issue arose during implementation, often involving compatibility problems with JavaScript libraries used by IBM Instana Observability.
Technical Manager at a consultancy with 1-10 employees
The technical support is excellent, and I would rate it at ten.
Senior consultant at a tech services company with 51-200 employees
 

Scalability Issues

Sentiment score
7.5
IBM Instana Observability excels in scalability for enterprises, supporting microservices, with positive user reviews and efficient growth handling.
Sentiment score
7.7
Splunk ITSI is scalable for various deployments, though costly; supports large datasets with predictive analysis for resource optimization.
More innovations are coming in every day, so it is scalable and more applications are becoming container-based.
UNIX/LINUX, ENTERPRISE SERVER AND STORAGE ADMINISTRATOR at Fidelity Bank Plc
IBM Instana Observability demonstrates scalability, especially in dynamic, distributed environments such as microservices and Kubernetes.
Technical Manager, Consulting at a outsourcing company with 1,001-5,000 employees
Splunk is highly scalable, with the ability to expand efficiently.
Senior consultant at a tech services company with 51-200 employees
 

Stability Issues

Sentiment score
8.4
IBM Instana Observability is rated high in stability, with users consistently praising its reliable and steady performance.
Sentiment score
7.8
Splunk ITSI is stable and reliable, managing large datasets efficiently, with minor challenges mainly during updates and configuration.
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
 

Room For Improvement

IBM Instana Observability needs enhancements in log management, AI models, user interface speed, support, and cost monitoring.
Splunk ITSI needs better integration, user interface, predictive analytics, machine learning, real-time alerting, automated response, and user support.
I had many false positives with IBM Instana Observability. Then I fixed the filters and it became more accurate on the errors reported.
Software engineer at EJADA
One main issue I found with IBM Instana Observability was the customer support, which was very poor when we needed some features to be enabled or integrated into IBM Instana Observability sensors.
DevOps engineer at Yara International
It is not open-source, and I have to be a partner to get more access to the products.
UNIX/LINUX, ENTERPRISE SERVER AND STORAGE ADMINISTRATOR at Fidelity Bank Plc
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
Splunk ITSI could benefit from including more features that other solutions support, such as vulnerability management modules.
Senior consultant at a tech services company with 51-200 employees
 

Setup Cost

IBM Instana offers competitive pricing in India, with a straightforward model and simple implementation despite varying cost perceptions.
Splunk ITSI is a costly but comprehensive tool, valued for its observability despite complex licensing and high pricing.
I find the cost of IBM Instana Observability to be very affordable compared to competitors because the pricing mechanism is based on the host that we monitor, unlike other competitors such as DataDog and Dynatrace, whose pricing is based on other factors.
Technical Manager, Consulting at a outsourcing company with 1,001-5,000 employees
It is not that costly, especially since we only use two instances.
Software engineer at EJADA
I think the pricing is good and I do not think it is high.
DevOps at a outsourcing company with 1,001-5,000 employees
Splunk ITSI tends to be more expensive compared to some open-source solutions.
Senior consultant at a tech services company with 51-200 employees
 

Valuable Features

IBM Instana Observability enhances performance with real-time insights, APM trace capabilities, and integration features to improve operational efficiency.
Splunk IT Service Intelligence enhances incident management with agile data handling, advanced analytics, and effective troubleshooting features for quick issue resolution.
IBM Instana Observability has positively impacted my organization by making it easy to observe the entire infrastructure under one platform, which was the biggest advantage of onboarding onto IBM Instana Observability.
DevOps engineer at Yara International
IBM Instana Observability has impacted my organization positively in that it has helped me find out what the issue is in real-time because of its one-second granularity and its ability to identify issues as quickly as possible.
UNIX/LINUX, ENTERPRISE SERVER AND STORAGE ADMINISTRATOR at Fidelity Bank Plc
With multiple servers and multiple applications, IBM Instana Observability allows us to resolve issues very quickly because we immediately know that a disk is full, the storage is full, or the database is down.
Technical Lead at a tech services company with 11-50 employees
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
Splunk ITSI allows for integration with threat intelligence, enabling my organization to correlate more than two events for generating alerts.
Senior consultant at a tech services company with 51-200 employees
 

Categories and Ranking

IBM Instana Observability
Ranking in Application Performance Monitoring (APM) and Observability
25th
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
10
Ranking in other categories
AI Observability (7th)
Splunk ITSI (IT Service Int...
Ranking in Application Performance Monitoring (APM) and Observability
12th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
IT Alerting and Incident Management (3rd)
 

Mindshare comparison

As of January 2026, in the Application Performance Monitoring (APM) and Observability category, the mindshare of IBM Instana Observability is 0.9%, up from 0.3% compared to the previous year. The mindshare of Splunk ITSI (IT Service Intelligence) is 0.7%, down from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Performance Monitoring (APM) and Observability Market Share Distribution
ProductMarket Share (%)
Splunk ITSI (IT Service Intelligence)0.7%
IBM Instana Observability0.9%
Other98.4%
Application Performance Monitoring (APM) and Observability
 

Featured Reviews

FranciscoGálvez - PeerSpot reviewer
Technical Manager at a consultancy with 1-10 employees
Observability has improved collaboration and predicts failures across distributed services
From my perspective, IBM Instana Observability is quite technical. Compared to some competitors, it offers an abundance of information about system performance but lacks planning or capacity planning information. You do not receive reports with recommendations; instead, it provides only the technical layer. Other companies, like Compuware, give more functional information about your environment, while IBM Instana Observability provides only limited functional insights. This means you often must interpret the data independently. Unlike other tools that can offer recommendations to save resources or costs, IBM Instana Observability does not provide that functionality. On the bright side, it is much more affordable than some other options, but it isn't complete. If you want full functionality with IBM Instana Observability, you also need to acquire other products for additional insights in monitoring areas, such as networking monitoring tools or similar products. For instance, we often recommend Turbonomic, which provides complementary insights. One potential feature that could improve IBM Instana Observability is the ability to translate KPIs into monetary terms. It would be interesting to have a product that integrates IBM Instana Observability with Turbonomic, as Turbonomic can utilize data from IBM Instana Observability to inform you about unnecessary spending and suggest whether you can consolidate servers or optimize containers for quicker response times. Implementing some level of simulation or capacity planning would greatly enhance the current capabilities of IBM Instana Observability.
Ahmed Naguib - PeerSpot reviewer
Director at Techpace
Identifying complex diagnostics and alert management improvements needed
The best features of Splunk ITSI (IT Service Intelligence) are the APM, the Application Performance Monitoring, and the diagnostic capabilities. It is state-of-the-art. The intelligent alerting in Splunk ITSI (IT Service Intelligence) is very good. The predictive analysis can give you proactive information about potential bottlenecks that can occur on applications, desk, storage, SQL servers, databases, or other systems. It is very effective. The customizable dashboards in Splunk ITSI (IT Service Intelligence) facilitate our customers because they are highly adaptable. We have multiple types of dashboards, depending on who will be utilizing them, such as engineering, middle management, IT heads, or NOC teams that will be monitoring systems. The metrics I rely on for monitoring in Splunk ITSI (IT Service Intelligence) depend on what kind of asset or CI we are monitoring. For applications, we have the number of concurrent transactions, response time from the database, and write time on the desk. There are multiple parameters and metrics that we utilize in the monitoring part within ITSI.
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
8%
Outsourcing Company
8%
Computer Software Company
7%
Financial Services Firm
17%
Manufacturing Company
10%
Computer Software Company
7%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Large Enterprise5
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise9
Large Enterprise33
 

Questions from the Community

What is your experience regarding pricing and costs for IBM Instana Observability?
I would evaluate the implementation process of IBM Instana Observability as not complex at all because you pay the license, and IBM takes care of everything. The only problem we occasionally face, ...
What needs improvement with IBM Instana Observability?
From my perspective, IBM Instana Observability is quite technical. Compared to some competitors, it offers an abundance of information about system performance but lacks planning or capacity planni...
What is your primary use case for IBM Instana Observability?
I usually recommend IBM Instana Observability for companies in the academic environment, as I have been working in a consultancy company for the last three years, where one of our customers built t...
What is your experience regarding pricing and costs for Splunk ITSI (IT Service Intelligence)?
Pricing can vary significantly based on the selected modules and deployment choices. Splunk ITSI tends to be more expensive compared to some open-source solutions.
What needs improvement with Splunk ITSI (IT Service Intelligence)?
Splunk ITSI (IT Service Intelligence) can be improved in terms of the service management function, which is the only drawback, and there are some limitations in terms of event correlation, specific...
 

Overview

 

Sample Customers

Information Not Available
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 IBM Instana Observability vs. Splunk ITSI (IT Service Intelligence) and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.