IBM Event Streams vs PubSub+ Platform comparison

IBM and Solace are both solutions in the Message Queue (MQ) Software category. IBM is ranked #12, while Solace is ranked #9 with an average rating of 8.5. IBM holds a 3.0% mindshare in MQ, compared to Solace’s 5.8% mindshare. Additionally, 100% of IBM users are willing to recommend the solution, compared to 100% of Solace users who would recommend it.

IBM Event Streams

Read 3 IBM Event Streams reviews

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687 Comparison Views

100% willing to recommend

PubSub+ Platform

Read 20 PubSub+ Platform reviews

4,983 Views
1,345 Comparison Views

100% willing to recommend

IBM Event Streams

PubSub+ Platform

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Executive SummaryUpdated on Jan 27, 2025

IBM Event Streams and PubSub+ Platform compete in the event streaming domain, offering reliable, scalable messaging systems. PubSub+ Platform appears to have the advantage due to its robust features and high-performance metrics, justifying a potentially higher cost.

Features: IBM Event Streams integrates seamlessly with Kafka, ensures strong message durability, and handles data efficiently. PubSub+ Platform supports multi-protocol message streaming, dynamic event broker scaling, and advanced analytics, offering extensive support for diverse messaging environments and comprehensive event management.

Ease Of Deployment and Customer Service: IBM Event Streams offers straightforward cloud and on-premises deployment with comprehensive documentation and technical support. PubSub+ Platform provides flexible deployment options including cloud, hybrid, and enterprise, backed by robust customer service. Its customizable deployment better aligns with varied business needs compared to IBM Event Streams' Kafka-first focus.

Pricing and ROI: IBM Event Streams is competitively priced with options for predictable costs, facilitating favorable ROI for enterprises invested in Kafka-based systems. PubSub+ Platform, although more expensive, yields high ROI through advanced integration capabilities and scalability, suitable for organizations requiring comprehensive event management. While IBM Event Streams is cost-efficient for Kafka users, PubSub+ Platform's broader capabilities may justify its higher price.

To learn more, read our detailed IBM Event Streams vs. PubSub+ Platform Report (Updated: August 2026).

Buyer's Guide

IBM Event Streams vs. PubSub+ Platform

August 2026

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Review summaries and opinions

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

Categories and Ranking

IBM Event Streams

Ranking in Message Queue (MQ) Software

12th

Average Rating

8.4

Reviews Sentiment

7.8

Number of Reviews

Ranking in other categories

No ranking in other categories

PubSub+ Platform

Ranking in Message Queue (MQ) Software

9th

Average Rating

8.6

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

Message Oriented Middleware (MOM) (2nd), Event Monitoring (11th), Streaming Analytics (15th)

Mindshare comparison

As of August 2026, in the Message Queue (MQ) Software category, the mindshare of IBM Event Streams is 3.0%, up from 0.9% compared to the previous year. The mindshare of PubSub+ Platform is 5.8%, up from 4.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Message Queue (MQ) Software Mindshare Distribution
Product	Mindshare (%)
PubSub+ Platform	5.8%
IBM Event Streams	3.0%
Other	91.2%

Message Queue (MQ) Software

Featured Reviews

Thabiso Mofokeng

IBM MQ Specialist / Administrator at a financial services firm with 10,001+ employees

Easy to use, stable, has a good interface, and the security is good

I don't know if it's because of experience, but for me, it was easy to install. It's just a matter of having an RPM, then click next, next, and next again. The difficult part comes in when you have to configure the security. That is the most difficult part, but it's not that difficult. It takes less than two hours to install. Two hours max, because I did one yesterday. I installed it on AWS and it was easy to install the software. It was less than an hour for the bare minimum installation. Setting up the security, took close to two hours.

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Deepankar Bbhowmick

Integration Architect at a tech services company with 11-50 employees

Messaging design has become visual and reliable and now supports fast microservice communication

The unique functions I appreciate about PubSub+ Platform are that it allows me to design my solution in a graphical manner, which is not available in many other products, and the design can also be pushed to the actual infrastructure layer, making it quite advantageous. Mesh technology is useful in scenarios where different geographies have to be connected, although such situations are not commonly found. It is beneficial but not a super-used feature of PubSub+ Platform. The event replay function is quite mature in PubSub+ Platform, allowing me to replay messages that are days in the past, which is a good feature. The main benefits PubSub+ Platform provides for the end-user include building a robust and scalable system with very low network latency, which improves the customer experience, whether using mobile phones or applications. This type of messaging framework is extremely important, and Solace is a very good product in that space. Nowadays, most applications are built using microservices technology, with small microservices interchanging messages via PubSub+ Platform. Without it, realizing a scalable system would not be possible; for example, one cannot have Netflix or similar services that require quick data transit and a good user experience, ensuring that data cannot be lost in transit. The analytics part of PubSub+ Platform is quite useful as it can connect with many analytical software tools, mainly for analysis of system logs, such as Splunk, DataDog, or Prometheus. It has the flexibility to connect with any of these and supports OpenTelemetry, which is not available in many other products, making traceability very easy. I can see how a message travels from a source system to the target system, end-to-end, along with what happens to that message along the path, making the analytics quite good.

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Quotes from Members

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

Pros

"The stability has been good."

"I'm an administrator, and what I like most is the interface, the security, and the storage."

"I am happy with the product, other than pricing I don't have any other improvements that I can suggest."

"The system efficiently processes and calculates the data flow within the cluster using DLP functionality."

"The triggering scenarios and routing scenarios are all good, making it a very useful solution for financial institutions."

"The way we can replicate information and send it to several subscribers is most valuable. It can be used for any kind of business where you've got multiple users who need information. Any company, such as LinkedIn, with a huge number of subscribers and any business, such as publishing, supermarket, airline, or shipping can use it."

"Solace has been incident free in HA deployment for seven years."

"The best features of PubSub+ Platform are its real-time simulation, real-time event data streaming, and integration with any IoT applications."

"The main benefits PubSub+ Platform provides for the end-user include building a robust and scalable system with very low network latency, which improves the customer experience, whether using mobile phones or applications."

"The best features of PubSub+ Platform include being highly scalable, allowing us to handle billions and billions of events, and configuring and managing PubSub+ Platform is straightforward and simple while being highly reliable."

"As of now, the most valuable aspects are the topic-based subscription and the fanout exchange that we are using."

"The most useful features has been the WAN optimization and probably the HybridEdge, which requires some third-party adapters or plugins. The idea that we can position Solace as a protocol-agnostic message transport fabric is key to our company having all manners of asynchronous messaging protocols from MQ, Kafka, JMS, etc. I really like the WAN optimization: Send once over a WAN, then distribute locally as many times as there are subscribers."

"Guaranteed Messaging allows for us to transport messages between on-prem and the cloud without any loss of data."

More PubSub+ Platform pros

Cons

"The product's interface needs improvement."

"It would be helpful if they could help us explain why they, as in, the customers, should use the product and the overall benefits."

"In the next release, I would like to see the GUI allow you to configure the security section."

"The pricing needs to be improved."

"The licensing and the cost are the major pitfalls."

"Potential areas for improvement in PubSub+ Platform are its authentication mechanisms, which could be slightly better."

"A challenge we currently have is Solace's ability to integrate with single sign-on in our Active Directory and other single sign-on tools and platforms that any company would have. It's important for the platforms to work. Typically, they support only LDAP-based connectivity to our SQL Servers."

"Additional in-line information about certain things on PubSub+ Platform could be more beneficial for new users who are just starting to use this technology."

"I heard that it is quite expensive compared to Kafka."

"For improvements, I would suggest increasing the max payload size to a limit of 100MB or more. The current max payload size is limited to 5MB."

"The product should allow third-party agents to be installed. Currently, it is quite proprietary."

"The ease of management could be approved. The GUI is very good, but to configure and manage these devices programmatically in the software version is not easy. For example, if I would like to spin up a new software broker, then I could in theory use the API, but it would require a considerable amount of development effort to do so. There should be a tool, or something that Solace supports, that we could use for this, e.g., a platform like Terraform where we could use infrastructure as code to configure our source appliances."

More PubSub+ Platform cons

Pricing and Cost Advice

"The pricing needs to be improved."

"The platform is averagely priced."

"The price of the solution is expensive."

"We have been really happy with the product licensing rates. It has been free for us, up to a 100,000 transactions per second, and all we have to do is pay for support. Making their product available and accessible to us has not been a problem at all."

"Having a free version of the solution was a big, important part of our decision to go with it. This was the big driver for us to evaluate Solace. We started using it as the free version. When we felt comfortable with the free version, that is when we bought the enterprise version."

"We are looking for something that will add value and fit for purpose. Freeware is good if you want to try something quickly without putting in much money. However, as far as our decision is concerned, I don't think it helps. At the end of the day, if we are convinced that a capability is required, we will ask for the funding. Then, when the funding is available, we will go for an enterprise solution only."

"The licensing is dependent on the volume that is flowing. If you go for their support services, it will cost some more money, but I think it is worth it, especially if you are just starting your journey."

"It could be cheaper. Its licensing is on a yearly basis."

"The pricing and licensing were very transparent and well-communicated by our account manager."

"There are different tiers where you can choose what would work for you. As a customer, you need to know roughly how many messages a month you will use."

More PubSub+ Platform pricing and cost advice

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Top Industries

By visitors reading reviews

No data available

Financial Services Firm

16%

Manufacturing Company

11%

Construction Company

Outsourcing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	1
Large Enterprise	15

Questions from the Community

Ask a question

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What is your experience regarding pricing and costs for PubSub+ Event Broker?

Pricing-wise for PubSub+ Platform, I find it a little expensive, so I would rate it at six.

See all answers

What needs improvement with PubSub+ Event Broker?

Potential areas for improvement in PubSub+ Platform are its authentication mechanisms, which could be slightly better. While simple authentication using basic methods is easy, moving to more robust...

See all answers

What is your primary use case for PubSub+ Event Broker?

PubSub+ Platform is primarily used for guaranteed delivery of messages from across systems, for microservice-based development, and for high-speed data consumption purposes. Guaranteed transmission...

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Comparisons

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Compared 11% of the time

MuleSoft Anypoint Platform vs IBM Event Streams

Compared 7% of the time

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Compared 6% of the time

Confluent vs PubSub+ Platform

Compared 5% of the time

Aurea CX Messenger vs PubSub+ Platform

Compared 4% of the time

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Product Reports

Buyer's Guide

Message Queue (MQ) Software

August 2026

Download IBM Event Streams product report

Buyer's Guide

PubSub+ Platform

August 2026

Download PubSub+ Platform product report

Also Known As

No data available

PubSub+ Event Broker, PubSub+ Event Portal

Overview

IBM Event Streams is a powerful event-streaming platform designed for enterprises to manage vast amounts of real-time data efficiently. Built on Apache Kafka, it offers scalable and robust data streaming capabilities suitable for modern analytics and monitoring needs.

IBM Event Streams integrates seamlessly with cloud and on-premises infrastructures, providing high availability and disaster recovery features that ensure data resiliency. Its enterprise-grade security allows for encrypted data streaming, making it suitable for sensitive data distribution. Users can leverage its intuitive setup and configuration process to rapidly deploy and scale applications, thus reducing time to market and enhancing operational efficiency.

What are the key features of IBM Event Streams?

Kafka-Based Architecture: Utilizes Apache Kafka for reliable and efficient data streaming.
Simplified Management: Provides an intuitive interface for managing Kafka operations and monitoring.
High Availability: Ensures data is continuously available and resilient to failures.
Security Features: Offers end-to-end encryption and secure data transactions.
Scalability: Easily scale as data demands increase.
Integration Capabilities: Integrates smoothly with existing systems for seamless data flow.

What are the benefits and ROI for IBM Event Streams?

Enhanced Data Processing: Streamlines real-time data processing, leading to faster decision-making.
Operational Efficiency: Reduces complexity, allowing teams to focus on innovation.
Cost Management: Features and scalability can potentially lower handling costs.
Reliability: High availability and disaster recovery capabilities ensure continuous service delivery.
Improved Security: Protects sensitive data with robust security measures.

Many industries implement IBM Event Streams for diverse purposes, such as financial institutions for real-time fraud detection, retail companies for dynamic inventory management, and telecommunication firms for improving customer experience through enhanced data analytics. The platform's flexibility allows businesses to address their unique data challenges efficiently.

IBM

PubSub+ Platform is designed for real-time message publishing and outstanding interoperability. With features like intuitive administration and topic filtering, it offers both stability and high performance for scalable deployments across diverse scenarios.

PubSub+ Platform enhances data integration with its event mesh and seamless protocol compatibility, providing a comprehensive solution for organizations tracking shipments, generating reports, and managing transactions. Its granular topic filtering and WAN optimization ensure high utility in event-driven applications and cloud deployments. Users highlight the platform's intuitive administration and ease of management, though some seek improved integration with third-party tools and enhanced observability. Concerns include scalability for large payloads and training resource availability. Despite its interface complexity, PubSub+ remains valuable for trading and market data distribution.

What are the key features of PubSub+ Platform?

Real-time messaging: Facilitates seamless communication across platforms.
Flexible topic hierarchy: Supports dynamic topic taxonomy for efficient data management.
Event mesh: Enhances integration and interoperability with diverse protocols.
Intuitive administration: Simplifies system management and configuration.
WAN optimization: Ensures efficient connectivity for global deployment.

What benefits should users look for in reviews?

Messaging stability: Offers consistent performance in dynamic environments.
Scalability: Provides seamless expansion to accommodate growing data volumes.
Security: Maintains robust protection for sensitive information.
Support and configuration: Accessible, reliable support, and UI-driven setup streamline the management.

PubSub+ Platform is widely implemented for asynchronous messaging in industries like finance for trading and market data, logistics for shipment tracking, and tech operations management. It enables companies to modernize applications while ensuring data accuracy and efficiency across global systems.

Solace

Sample Customers

American Airlines, UBank, Bitly, Eurobits, Active International, Bison, Contextor, Constance Hotels, Resorts & Golf, Creval, Deloitte, ExxonMobil, FaceMe, FacePhi, Fitzsoft, Fuga Technologies, Guardio, Honeywell, Japanese airline, Jenzabar, KONE

FxPro, TP ICAP, Barclays, Airtel, American Express, Cobalt, Legal & General, LSE Group, Akuna Capital, Azure Information Technology, Brand.net, Canadian Securities Exchange, Core Transport Technologies, Crédit Agricole, Fluent Trade Technologies, Harris Corporation, Korea Exchange, Live E!, Mercuria Energy, Myspace, NYSE Technologies, Pico, RBC Capital Markets, Standard Chartered Bank, Unibet

Buyer's Guide

IBM Event Streams vs. PubSub+ Platform

August 2026

Free Report: IBM Event Streams vs. PubSub+ Platform

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