IBM Event Streams vs PubSub+ Platform comparison

Why PeerSpot?

IBM and Solace are both solutions in the Message Queue (MQ) Software category. IBM is ranked #11, while Solace is ranked #8 with an average rating of 8.8. 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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821 Comparison Views

100% willing to recommend

PubSub+ Platform

Read 20 PubSub+ Platform reviews

5,724 Views
1,545 Comparison Views

100% willing to recommend

IBM Event Streams

PubSub+ Platform

Comparison Buyer's Guide

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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: September 2026).

Buyer's Guide

IBM Event Streams vs. PubSub+ Platform

September 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

11th

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

8th

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 (14th)

Mindshare comparison

As of October 2026, in the Message Queue (MQ) Software category, the mindshare of IBM Event Streams is 3.0%, up from 1.1% compared to the previous year. The mindshare of PubSub+ Platform is 5.8%, up from 4.2% 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.

Read full review

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.

Read full review

Quotes from Members

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

Pros

"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 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."

"Capital markets couldn't operate today if Solace were down."

"We like the seamless flexibility in protocol exchange offering without writing a code."

"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."

"Some valuable features include reconnecting topics, placing queues, and direct connections to MongoDB. The platform provides a dashboard to monitor the status of messages, such as how many have been processed or delivered, which is helpful for tracking performance."

"In my assessment of Solace against other products — as I was responsible for evaluating various products and bringing the right tool into companies in the past — I worked with multiple platforms like RabbitMQ, Confluent, Kafka, and various other tools in the market. But I found the event mesh capability to be a very interesting as well as fulfilling capability, towards what we want to achieve from a digital-integration-strategy point of view... It's distributed, yet it is intelligently connected. It can also span and I can plug and play any number of brokers into the event mesh, so it's a great deal. That's a differentiator."

"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 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."

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

More PubSub+ Platform pros

Cons

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

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

"The pricing needs to be improved."

"The product's interface needs improvement."

"We've pointed out some things with the DMR piece, the event mesh, in edge cases where we could see a problem. Something like 99 percent of users wouldn't ever see this problem, but it has to do with if you get multiple bad clients sending data over a WAN, for example. That could then impact other clients."

"For small-sized enterprises, it may be a higher cost, or they may be looking for other options."

"The section on observability pertains to understanding the functioning of an event crash. Instead of focusing on how the crash occurs, attention is given to the observable aspects, such as a memory pipeline where one person pushes messages and another reads them. However, this pipeline often encounters issues, such as the reader being unavailable, causing the system to become stuck and preventing the messages from moving forward. This can lead to the pipeline being permanently stalled."

"Some of the feature's gaps with some of the open-source vendors have been closed in a lot of ways. Being more agile and addressing those earlier could be an area for improvement."

"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."

"Some improvement is required with Solace professional services. The professional services really needs to drive the solutions for the customers and share best practices."

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

"If you create one event in the past, you cannot resend it."

More PubSub+ Platform cons

Pricing and Cost Advice

"The pricing needs to be improved."

"The platform is averagely priced."

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

"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."

"I would rate the product's pricing a ten out of ten."

"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."

"The price of PubSub+ Event Broker is reasonable for the capability it offers. However, when compared to others solutions on the market it is expensive."

"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."

"Having a free version is critical for our technology operations use case. This is primarily because our technology operations team is a cost center in our company. They are not profit drivers and having a free version for installation will probably meet our needs. Even for production, it'll support up to a 100,000 messages per second. I don't think in technology operations that we have that many events and alerts from our detection tools. Even if I have 20 or 30 event detection products out there, they're only going to publish the things which are critical or warnings. I don't think we'll ever reach a 100,000 messages per second."

"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."

More PubSub+ Platform pricing and cost advice

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Top Industries

By visitors reading reviews

No data available

Financial Services Firm

14%

Manufacturing Company

11%

Outsourcing Company

Construction 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

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

The pricing and setup cost of PubSub+ Platform is very seamless and reliable for medium and large-scale enterprises. For small-sized enterprises, it may be a higher cost, or they may be looking for...

See all answers

What needs improvement with PubSub+ Event Broker?

PubSub+ Platform could improve by simplifying some advanced configurations and providing better visualization for event flow. Some advanced configurations in PubSub+ Platform could be made simpler ...

See all answers

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

PubSub+ Platform's main use case in our company is real-time data streaming using applications and API integrations. We are working on an IoT-based application, and our company handles most of the ...

See all answers

Comparisons

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Compared 23% of the time

IBM MQ vs IBM Event Streams

Compared 22% of the time

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Compared 11% of the time

Oracle Event Hub Cloud Service vs IBM Event Streams

Compared 10% of the time

MuleSoft Anypoint Platform vs IBM Event Streams

Compared 6% of the time

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Apache Kafka vs PubSub+ Platform

Compared 7% of the time

IBM MQ vs PubSub+ Platform

Compared 6% of the time

Azure Stream Analytics vs PubSub+ Platform

Compared 5% of the time

Confluent vs PubSub+ Platform

Compared 5% of the time

ActiveMQ vs PubSub+ Platform

Compared 4% of the time

More PubSub+ Platform Competitors

Product Reports

Buyer's Guide

Message Queue (MQ) Software

September 2026

Download IBM Event Streams product report

Buyer's Guide

PubSub+ Platform

September 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

September 2026

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