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Azul Zing vs IIS comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 5, 2025

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

Azul Zing
Ranking in Application Infrastructure
16th
Average Rating
9.6
Reviews Sentiment
8.2
Number of Reviews
9
Ranking in other categories
AI Customer Experience Personalization (36th)
IIS
Ranking in Application Infrastructure
2nd
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
61
Ranking in other categories
Application Server (4th)
 

Mindshare comparison

As of September 2026, in the Application Infrastructure category, the mindshare of Azul Zing is 2.9%, down from 3.4% compared to the previous year. The mindshare of IIS is 6.4%, down from 10.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure Mindshare Distribution
ProductMindshare (%)
IIS6.4%
Azul Zing2.9%
Other90.7%
Application Infrastructure
 

Featured Reviews

it_user500349 - PeerSpot reviewer
CTO at a financial services firm with 51-200 employees
It has helped us improve our latency performance drastically
As a large scale high performance trading platform serving the high frequency trading community, latency has always been critical for our clients. Before using Azul Zing JVM, we would have had to spend a lot of effort tuning our JVM GC and profiling our application to minimize latency, which is…
Krishnakumar Natarajan - PeerSpot reviewer
Systems Engineer at Atos
Designs and manages multiple websites while ensuring data backup and disaster recovery
I have experience with AWS, and I am most familiar with the server environment, as we just use the server environment and then use Microsoft products on an AWS environment. I have experience with Windows Server IIS, which I ran on my own on-premise data center. The website was developed and then hosted, and through IIS, we managed the servers. The manageability within the IIS environment is not very difficult. For server management, you need to ensure data backup, data restore, and you have a DR configured to keep the database intact. It was done on-premises, so I had no problem doing that. If you have to go to the cloud, then you should have the storage connected to the IIS server and also have a DR set up for that. I didn't use Microsoft Azure tools, but since it is a Microsoft product, Azure has all the portability, so you don't have to worry about compatibility on the cloud. On a scale of 1-10, I would rate this solution a 10.

Quotes from Members

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

Pros

"With minimal effort, Zing has helped us improve our latency performance drastically."
"Zing has completely solved the garbage collection problem for us."
"With minimal effort, Zing has helped us improve our latency performance dramatically."
"GC Pause times are maintained in low milliseconds, which is beneficial for applications with high volume, high memory allocation rate, and a high memory footprint, and it also increases throughput by approximately 20-25% as compared to Oracle Java Development Kit based on some tests that I have done with real applications."
"With minimal effort, Zing has helped us improve our latency performance dramatically."
"No other JVM on the market even comes close to competing with the Azul Zing."
"Performance of the JVM, especially the C4 Pauseless Garbage Collection, for continuous application execution is the most valuable feature."
"The non-stop garbage collector (C4 - Continuously Concurrent Compacting Collector) is the most valuable feature."
"The tool shows us the operating systems where our servers and applications are running."
"The solution is the easiest way to publish applications which have been designed by older development tools."
"IIS fits properly for my business needs, with a lot of possibilities to upgrade the out-of-the-box functionalities, so it is really great."
"The solution is highly reliable."
"The best features of IIS are that you can design your own website and manage it yourself, creating as many websites as you want."
"The interface, simplicity, and ease of management are all good features that make this user-friendly."
"The product is flexible."
"We use the solution for our customer's web applications."
 

Cons

"Although Azul claims to have a fast warmup, we still experience higher latency for the first trade when our system starts up on Sundays."
"We have encounter stability issues and that has been a source of frustration at times."
"The licensing over non-production environments considerably affects the cost of our solution as a software vendor."
"The profiling tools included with Zing lag behind those available for Oracle's Java implementation."
"However, like every other great product, there is always something that can be improved."
"It is extremely expensive."
"Although Azul claims to have a fast warmup, we still experience higher latency for the first trade when our system starts up on Sundays."
"The solution is slow and could have better performance."
"The first level of support is not very good because by the time we speak with them, we are already past that point."
"IIS's memory management could be improved."
"The areas of this solution that need improvement are monitoring, debugging, and troubleshooting."
"If Microsoft IIS could work well with AppOptics or things like PHP, Python, and other custom languages that run on the webserver, it would be ideal. I think there are cases where people need to use Apache instead of IIS when IIS doesn't work well with other web languages."
"The solution's stability needs improvement."
"The documentation is not very detailed."
"We've never had any issues with the solution, but it's still nice to have overall improvements on it. It could be easier and faster to use, for example."
 

Pricing and Cost Advice

Information not available
"There is an annual license to use this solution and the price could be better."
"The solution provides multiple licensing options."
"The solution’s pricing is yearly. The pricing is affordable and not high."
"I didn't need to get an additional license for the solution since it was included in my server."
"IIS's pricing is not expensive."
"We purchased a Microsoft Windows license and the license for IIS came in the package."
"They offer a one-time payment model for the product license, and we pay annually for support."
"The tool's pricing is on a yearly basis."
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Top Industries

By visitors reading reviews
Financial Services Firm
23%
Manufacturing Company
13%
Construction Company
12%
Comms Service Provider
8%
Financial Services Firm
13%
Manufacturing Company
11%
Comms Service Provider
10%
Construction Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise4
Large Enterprise2
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise12
Large Enterprise22
 

Questions from the Community

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Which is better - IIS or NGINX Plus?
IIS is a flexible, secure, and manageable web server to host anything on the web. IIS’s scalable and open architecture can handle the most demanding tasks. From media streaming to web applications,...
What is your experience regarding pricing and costs for IIS?
For the pricing, setup cost, and licensing for IIS, as a Microsoft product, I didn't think much about separately purchasing an IIS product as it is part of Microsoft Windows. We bought a developmen...
What needs improvement with IIS?
I see that IIS has maintained the same interface for a long time, so they could potentially use more automation or integrate Copilot into it to make it easier to use. I have not accessed or checked...
 

Comparisons

 

Also Known As

No data available
Windows Server IIS
 

Overview

 

Sample Customers

Priceline, RBS, Credit Suisse, ING, Creditex, Nielsen, Workday, Saks Fifth Avenue, Entergy, Quotix, Puma and many more.  Visit azul.com for more.
Erste Bank Group, NJVC, Samsung Electronics, Sheraton Hotels and Resorts, Tata Steel Europe, Urban Software Institute
Find out what your peers are saying about Azul Zing vs. IIS and other solutions. Updated: September 2026.
913,806 professionals have used our research since 2012.