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Apache Kafka vs Azure Stream Analytics comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 17, 2024

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
7.0
Apache Kafka offers substantial returns, especially in high-value applications, with enhanced data buffering, cost savings, and ease of use.
Sentiment score
6.1
Azure Stream Analytics offers quick, cost-effective deployment, resulting in positive ROI and customer satisfaction for non-complex scenarios.
 

Customer Service

Sentiment score
5.8
Apache Kafka's support is community-driven, with varying user experiences and enhanced options available through paid subscriptions and consultants.
Sentiment score
6.5
Azure Stream Analytics support is effective and responsive, with service quality varying by subscription and occasional communication challenges.
There is plenty of community support available online.
The Apache community provides support for the open-source version.
The support on critical issues depends on the level of subscription that you have with Microsoft itself.
They've managed to answer all my questions and provide help in a timely manner.
There is a big communication gap due to lack of understanding of local scenarios and language barriers.
 

Scalability Issues

Sentiment score
7.8
Apache Kafka is praised for its robust scalability, efficiently handling high data throughput, with some challenges in cluster management.
Sentiment score
7.5
Azure Stream Analytics is highly scalable, cloud-based, easily integrated, adaptable, and efficiently manages varying workloads, despite some cost concerns.
Customers have not faced issues with user growth or data streaming needs.
Maintenance requires a couple of people, however, it's not a full-time endeavor.
Azure Stream Analytics is scalable, and I would rate it seven out of ten.
 

Stability Issues

Sentiment score
7.7
Apache Kafka is stable and performs well with high data volumes, though some configurations may affect its reliability.
Sentiment score
6.5
Azure Stream Analytics is reliable but can face downtime, bugs, transformation challenges, and requires tuning for optimal stability.
Partitioning helps us distribute all the messages that we receive between all partitions, which helps us to be stable.
Apache Kafka is stable.
They require significant effort and fine-tuning to function effectively.
 

Room For Improvement

Enhancing Kafka involves user-friendly UI, improved monitoring, reduced ZooKeeper dependency, better documentation, flexibility, and integration with other platforms.
Azure Stream Analytics needs better pricing, logging, customization, connectivity, integration, UI, flexibility, support, error handling, and simplified licensing.
The performance angle is critical, and while it works in milliseconds, the goal is to move towards microseconds.
We are always trying to find the best configs, which is a challenge.
A more user-friendly interface and better management consoles with improved documentation could be beneficial.
Any coding challenges they face can be helped by the implementation of AI within the tool itself, such as using chatbots for assistance, automated testing, and code formatting.
A cost comparison between products is also not straightforward.
There is a lack of technical support from Microsoft's local office, particularly in Taiwan.
 

Setup Cost

Apache Kafka is free to use, but costs vary for managed services and enterprise solutions, potentially exceeding 100,000 euros annually.
Azure Stream Analytics offers competitive pricing but can be costly for enterprises; users find billing reports confusing.
The open-source version of Apache Kafka results in minimal costs, mainly linked to accessing documentation and limited support.
Its pricing is reasonable.
From my point of view, it should be cheaper now, considering the years since its release.
We sell the data analytics value and operational value to customers, focusing on productivity and efficiency from the cloud.
Regarding the cost of Azure Stream Analytics, I believe the price is reasonable for the tool.
 

Valuable Features

Apache Kafka excels in scalability, real-time streaming, and flexibility, ideal for large data volumes and event-driven architectures.
Azure Stream Analytics provides integrated, scalable real-time analytics with SQL queries and machine learning, enhancing data processing capabilities efficiently.
Apache Kafka is effective when dealing with large volumes of data flowing at high speeds, requiring real-time processing.
The impact of Apache Kafka's scalability features on my organization and data processing capabilities depends on how many messages each company wants to receive.
It allows the use of data in motion, allowing data to propagate from one source to another while it is in motion.
It's very accurate and uses existing technologies in terms of writing queries, utilizing standard query languages such as SQL, Spark, and others to provide information.
Clients can choose and subscribe to the service items they need, making it more flexible than IBM solutions, especially in data analytics or data governance.
The native connectors and integration with other Microsoft products.
 

Categories and Ranking

Apache Kafka
Ranking in Streaming Analytics
8th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
88
Ranking in other categories
No ranking in other categories
Azure Stream Analytics
Ranking in Streaming Analytics
3rd
Average Rating
7.8
Reviews Sentiment
6.7
Number of Reviews
28
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the Streaming Analytics category, the mindshare of Apache Kafka is 3.5%, up from 2.0% compared to the previous year. The mindshare of Azure Stream Analytics is 8.8%, down from 12.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Streaming Analytics
 

Featured Reviews

Snehasish Das - PeerSpot reviewer
Data streaming transforms real-time data movement with impressive scalability
I worked with Apache Kafka for customers in the financial industry and OTT platforms. They use Kafka particularly for data streaming. Companies offering movie and entertainment as a service, similar to Netflix, use Kafka Apache Kafka offers unique data streaming. It allows the use of data in…
SantiagoCordero - PeerSpot reviewer
Native connectors and integration simplify tasks but portfolio complexity needs addressing
There are too many products in the Azure landscape, which sometimes leads to overlap between them. Microsoft continuously releases new products or solutions, which can be frustrating when determining the appropriate features from one solution over another. A cost comparison between products is also not straightforward. They should simplify their portfolio. The Microsoft licensing system is confusing and not easy to understand, and this is something they should address. In the future, I may stop using Stream Analytics and move to other solutions. I discussed Palantir earlier, which is something I want to explore in depth because it allows me to accomplish more efficiently compared to solely using Azure. Additionally, the vendors should make the solution more user-friendly, incorporating low-code and no-code features. This is something I wish to explore further.
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Top Industries

By visitors reading reviews
Financial Services Firm
26%
Computer Software Company
12%
Manufacturing Company
8%
Retailer
6%
Financial Services Firm
15%
Computer Software Company
14%
Manufacturing Company
9%
Retailer
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What are the differences between Apache Kafka and IBM MQ?
Apache Kafka is open source and can be used for free. It has very good log management and has a way to store the data used for analytics. Apache Kafka is very good if you have a high number of user...
What do you like most about Apache Kafka?
Apache Kafka is an open-source solution that can be used for messaging or event processing.
What is your experience regarding pricing and costs for Apache Kafka?
Its pricing is reasonable. It's not always about cost, but about meeting specific needs.
Which would you choose - Databricks or Azure Stream Analytics?
Databricks is an easy-to-set-up and versatile tool for data management, analysis, and business analytics. For analytics teams that have to interpret data to further the business goals of their orga...
What is your experience regarding pricing and costs for Azure Stream Analytics?
The solution does not need any license; it comes with your subscription.
What needs improvement with Azure Stream Analytics?
It does not always give you the right reason or the correct reason. For example, if a service is stopped, it just tells you that it stopped and started. It does not give you any good insight as to ...
 

Also Known As

No data available
ASA
 

Overview

 

Sample Customers

Uber, Netflix, Activision, Spotify, Slack, Pinterest
Rockwell Automation, Milliman, Honeywell Building Solutions, Arcoflex Automation Solutions, Real Madrid C.F., Aerocrine, Ziosk, Tacoma Public Schools, P97 Networks
Find out what your peers are saying about Apache Kafka vs. Azure Stream Analytics and other solutions. Updated: July 2025.
864,155 professionals have used our research since 2012.