Apache Pulsar vs PubSub+ Platform comparison

Pulsar and Solace are both solutions in the Streaming Analytics category. Pulsar is ranked #21, while Solace is ranked #12 with an average rating of 8.5. Pulsar holds a 2.2% mindshare in SA, compared to Solace’s 2.9% mindshare. Additionally, 100% of Pulsar users are willing to recommend the solution, compared to 100% of Solace users who would recommend it.

Apache Pulsar

Read 1 Apache Pulsar review

807 Views
807 Comparison Views

100% willing to recommend

PubSub+ Platform

Read 17 PubSub+ Platform reviews

2,443 Views
1,050 Comparison Views

100% willing to recommend

Apache Pulsar

PubSub+ Platform

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Executive Summary

We performed a comparison between Apache Pulsar and PubSub+ Platform based on real PeerSpot user reviews.

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To learn more, read our detailed Streaming Analytics Report (Updated: August 2025).

Buyer's Guide

Streaming Analytics

August 2025

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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

Apache Pulsar

Ranking in Streaming Analytics

21st

Average Rating

8.0

Reviews Sentiment

6.2

Number of Reviews

Ranking in other categories

No ranking in other categories

PubSub+ Platform

Ranking in Streaming Analytics

12th

Average Rating

8.6

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

Message Queue (MQ) Software (8th), Message Oriented Middleware (MOM) (2nd), Event Monitoring (12th)

Mindshare comparison

As of August 2025, in the Streaming Analytics category, the mindshare of Apache Pulsar is 2.2%, up from 1.9% compared to the previous year. The mindshare of PubSub+ Platform is 2.9%, up from 2.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Streaming Analytics

Featured Reviews

it_user1087029

Solution Architect at Vlaanderen connect.

The solution can mimic other APIs without changing a line of code

The solution operates as a classic message broker but also as a streaming platform. It operates differently than a traditional streaming platform with storage and computing handled separately. It scales easier and better than Kafka which can be stubborn. You can even make it act like Kafka because it understands Kafka APIs. There are even companies that will sell you Kafka but underneath it is Apache Pulsar. The solution is very compatible because it can mimic other APIs without changing a line of code.

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BhanuChidigam

Sofware Engineering Manager at Wells Fargo

Performs well, high availability, and helpful support

We use approximately four people for the maintenance of the solution. My advice to others is this solution has high throughput and is used for many stock exchanges. For business critical use cases, such as processing financial transactions at a quick speed, I would recommend this solution. I rate PubSub+ Event Broker an eight out of ten.

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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 solution operates as a classic message broker but also as a streaming platform."

"The most valuable feature of PubSub+ Event Broker is the scaling integration. Prior to using the solution, it was done manually with a file, and it can be done instantly live."

"The valuable feature of PubSub+ Event Broker is the speed of processing, publishing, and consumption."

"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."

"Going from something where we had outages and capacity issues constantly to a system that was able to scale with the massive market data and messaging spikes that happened during the initial stages of the COVID crisis in March, we were able to scale with 40 plus percent growth in our platform over the course of days."

"The event portal and the diversity of deployment options in a hybrid landscape are the most valuable features."

"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."

"When we went to add another installation in our private cloud, it was easy. We received support from Solace and the install was seamless with no issues."

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

More PubSub+ Platform pros

Cons

"Documentation is poor because much of it is in Chinese with no English translation."

"One of the areas of improvement would be if we could tell the story a bit better about what an event mesh does or why an event mesh is foundational to a large enterprise that has a wide diversity of applications that are homegrown and a small number off the shelf."

"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."

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

"The integrations could improve in PubSub+ Event Broker."

"I would like them to design topic and queue schemas, mapping them to the enterprise data structure."

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

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

"We have requested to be able to get into the payload to do dynamic topic hierarchy building. A current workaround is using the message's header, where the business data can be put into this header and be used for a dynamic topic lookup. I want to see this in action when there are a couple of hundred cases live. E.g., how does it perform? From an administration perspective, is the ease of use there?"

More PubSub+ Platform cons

Pricing and Cost Advice

Information not available

"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 the solution is expensive."

"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."

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

"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."

"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."

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

More PubSub+ Platform pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

25%

Financial Services Firm

10%

Comms Service Provider

Manufacturing Company

Financial Services Firm

31%

Manufacturing Company

Computer Software Company

Retailer

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

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What needs improvement with PubSub+ Event Broker?

Regarding improving the PubSub+ Platform, I'm not sure about the pricing aspect, but I heard that it is quite expensive compared to Kafka. That's the only concern I can mention; otherwise, it was a...

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

My typical use case for the PubSub+ Platform is as an event-driven solution for communication between two components.

See all answers

What advice do you have for others considering PubSub+ Event Broker?

I have experience working with Kafka, PubSub+ Platform, and IBM MQ, all three of them. We are customers, meaning my company uses Solace. We use it and customize it based on our needs. Based on my e...

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Comparisons

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Compared 36% of the time

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Compared 19% of the time

Apache Spark Streaming vs Apache Pulsar

Compared 17% of the time

Redpanda vs Apache Pulsar

Compared 14% of the time

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Apache Kafka vs PubSub+ Platform

Compared 23% of the time

IBM MQ vs PubSub+ Platform

Compared 18% of the time

ActiveMQ vs PubSub+ Platform

Compared 10% of the time

Confluent vs PubSub+ Platform

Compared 8% of the time

More PubSub+ Platform Competitors

Product Reports

Buyer's Guide

Streaming Analytics

August 2025

Download Apache Pulsar product report

Buyer's Guide

PubSub+ Platform

August 2025

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Also Known As

No data available

PubSub+ Event Broker, PubSub+ Event Portal

Overview

Apache Pulsar is a cloud-native, distributed messaging and streaming platform originally created at Yahoo! and now a top-level Apache Software Foundation project

Pulsar

PubSub+ Platform supports real-time shipment tracking, IT event management in multiclouds, and connects legacy and cloud-native systems for application modernization. It's utilized for trading, streaming market data, and app-to-app messaging, enhancing event-driven architectures with reliable message queuing.

Organizations adopt PubSub+ to efficiently transport events across hybrid and cloud environments, managing audit trails and long processing tasks. The platform aids integration through dynamic data publication, event mesh capabilities, and WAN optimization. Features like seamless integration, protocol agnosticism, and flexible topic hierarchy enhance versatility. Solace Admin Utility simplifies configuration and management, while the event portal allows hybrid deployment.

What are the key features of PubSub+ Platform?

Dynamic Data Publication: Enables flexible and responsive data handling.
Event Mesh Capabilities: Facilitates efficient event transportation.
WAN Optimization: Enhances data transfer across networks.
Protocol Agnosticism: Supports a wide range of protocols for integration.
Flexible Topic Hierarchy: Allows detailed and organized data exchange.
Solace Admin Utility: Provides intuitive configuration and management.
Granular Topic Filtering: Offers precise data filtering options.
Guaranteed Messaging: Ensures reliable message delivery.

What benefits or ROI should users consider?

Seamless Integration: Reduces complexity in connecting systems.
Performance and Scaling: Supports high-load environments efficiently.
Asynchronous Messaging: Improves application performance.
Robust Support System: Provides guidance and problem resolution.

PubSub+ is implemented in industries requiring real-time data handling and integration between disparate systems. Financial institutions use it for trading and streaming market data, while logistics companies benefit from real-time shipment tracking. Enterprises apply it to modernize operations by connecting legacy systems with cloud-native applications, enhancing their architecture and ensuring data reliability across environments.

Solace

Sample Customers

Information Not Available

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

Find out what your peers are saying about Databricks, Amazon Web Services (AWS), Confluent and others in Streaming Analytics. Updated: August 2025.

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