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Azul Zing vs Azul Zulu comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Feb 8, 2026

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
11th
Ranking in AI Customer Experience Personalization
24th
Average Rating
9.6
Reviews Sentiment
5.9
Number of Reviews
10
Ranking in other categories
No ranking in other categories
Azul Zulu
Ranking in Application Infrastructure
9th
Ranking in AI Customer Experience Personalization
26th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
3
Ranking in other categories
AI Content Creation (9th)
 

Mindshare comparison

As of November 2026, in the Application Infrastructure category, the mindshare of Azul Zing is 2.8%, down from 3.1% compared to the previous year. The mindshare of Azul Zulu is 3.5%, down from 3.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure Mindshare Distribution
ProductMindshare (%)
Azul Zulu3.5%
Azul Zing2.8%
Other93.7%
Application Infrastructure
 

Featured Reviews

Mohakhan Khan - PeerSpot reviewer
Software Technical Expert at a tech vendor with 10,001+ employees
Real-time charging has stayed consistent and cuts GC incidents while reducing cloud costs
The best features Azul Zing offers include no stop-the-world during the full GC. No stop-the-world pauses during full GC, and we hit higher TPS with fewer JVMs -- a real win for maintenance and cost. As an online charging system, we can't afford crashes or latency spikes. Before Zing, JVMs would hang and drop from the grid on missed heartbeats. GC tuning is also out-of-the-box -- no more time consuming manual tuning like with Oracle/OpenJDK with no significant outcome.
BasilJiji - PeerSpot reviewer
System engineer at a retailer with 10,001+ employees
Standardized our Java estate and have reduced licensing costs while maintaining strong support
Azul Zulu's ability to allow us to standardize our Java estate on a single and well-supported platform stands out as one of its best features. This standardization simplifies our compliance audits and ensures all our applications receive timely security updates.Azul Zulu positively impacts our organization by providing a platform that allows us to standardize Java on a well-supported platform. Without the high cost associated with other proprietary vendors, Azul Zulu provides an excellent platform for running our applications.

Quotes from Members

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

Pros

"No other JVM on the market even comes close to competing with the Azul Zing."
"With minimal effort, Zing has helped us improve our latency performance dramatically."
"After using Azul Zing, it is almost a zero-incident situation because of the GCs."
"With Zing, we've now been able to re-allocate those tuning resources to general product development."
"Zing has completely solved the garbage collection problem for us."
"Performance of the JVM, especially the C4 Pauseless Garbage Collection, for continuous application execution is the most valuable feature."
"With minimal effort, Zing has helped us improve our latency performance drastically."
"With minimal effort, Zing has helped us improve our latency performance dramatically."
"We've had no issues with stability."
"We achieved specific outcomes from using Azul Zulu by reducing our Java licensing and support costs by approximately 70% when compared to our previous Oracle contract."
"I joined this project which had already been underway for approximately six months, and in two months, I refactored the whole project and wrote it, and it is functional."
 

Cons

"We have encounter stability issues and that has been a source of frustration at times."
"It is extremely expensive."
"The licensing over non-production environments considerably affects the cost of our solution as a software vendor."
"However, like every other great product, there is always something that can be improved."
"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 profiling tools included with Zing lag behind those available for Oracle's Java implementation."
"Although Azul claims to have a fast warmup, we still experience higher latency for the first trade when our system starts up on Sundays."
"It needs a better update daemon. At this time the process is manual and could be an issue on multiple desktop deployments."
"Improvements for Azul Zulu could include more automated tools for unused code visibility integrated directly into the standard portal to help further optimize our cloud footprints."
"I think Azul Zulu can be improved by always thinking about productivity, as most languages tend to evolve in that direction."
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Top Industries

By visitors reading reviews
Financial Services Firm
19%
Manufacturing Company
12%
Comms Service Provider
11%
Construction Company
11%
Financial Services Firm
25%
Construction Company
13%
Manufacturing Company
11%
Retailer
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise4
Large Enterprise3
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Azul Zing?
Setup cost isn't significant, the documentation is clear and straightforward, and licensing is simple. I'm not directly involved in pricing negotiations, but given we run it across many production ...
What needs improvement with Azul Zing?
Nothing major, but one nuance: Zing auto-adjusts internal config based on available CPUs, which can cause brief CPU spikes every few minutes. These are harmless, but can give ops/monitoring teams a...
What is your primary use case for Azul Zing?
We run a large in-memory data grid to store millions of customers -- clusters of up to 30-40 JVMs, each with ~90GB heap, deployed across a variety of infrastructure including Azure, AWS, and on-pre...
What needs improvement with Azul Zulu?
I think Azul Zulu can be improved by always thinking about productivity, as most languages tend to evolve in that direction. I have two projects that I am working on in parallel, one using Angular ...
What is your primary use case for Azul Zulu?
My main use case for Azul Zulu in the current project is developing the archiving and unarchiving system. I use Azul Zulu on the back end when I created a REST API, which I use together with Java S...
What advice do you have for others considering Azul Zulu?
My advice to others who are thinking about using Azul Zulu is to try to explore as much as possible what it offers, getting away from the conventional paradigm. I would rate this review as a nine o...
 

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.
Microsoft, Kyocera, OKI, Alcatel-Lucent Enterprise, Voya Financial
Find out what your peers are saying about Azul Zing vs. Azul Zulu and other solutions. Updated: October 2026.
920,769 professionals have used our research since 2012.