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CoreStack vs Zesty comparison

 

Comparison Buyer's Guide

Executive Summary

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

CoreStack
Ranking in Cloud Cost Management
25th
Average Rating
8.0
Reviews Sentiment
6.1
Number of Reviews
4
Ranking in other categories
No ranking in other categories
Zesty
Ranking in Cloud Cost Management
15th
Average Rating
8.8
Reviews Sentiment
6.5
Number of Reviews
5
Ranking in other categories
Cloud Management (17th)
 

Mindshare comparison

As of August 2026, in the Cloud Cost Management category, the mindshare of CoreStack is 1.3%, up from 0.9% compared to the previous year. The mindshare of Zesty is 1.7%, up from 1.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Cost Management Mindshare Distribution
ProductMindshare (%)
Zesty1.7%
CoreStack1.3%
Other97.0%
Cloud Cost Management
 

Featured Reviews

Manmohan Rao - PeerSpot reviewer
Associate Vice President at Hitachi Systems India Private Limited
Cost reports have driven accurate AWS workload optimization and continue to guide savings
I can suggest improvements for CoreStack, especially regarding reporting periods. I noticed that some of the cost optimization reports generated potential savings while considering systems that have only maximum utilization of 1% or 2%. The recommendations made in CoreStack to delete a machine have the potential to generate major cost savings, but such machines should not be listed for deletion if they have maximum CPU utilization of 1%. I have concerns about needed improvements primarily regarding AWS. If a customer is running ten virtual machines and one machine has a maximum of 1% utilization, it is considered as an idle instance in the report, which completely ignores that particular machine. This should not be the approach.
Srinivas Rayudu  - PeerSpot reviewer
Director at Zensa Technologies
Managing complex onboarding has been challenging but automated cost optimization delivers strong savings
Zesty is a good solution; however, the learning curve can be complex for new users without a solid tech background, posing a challenge in training and the initial setup process. I would deduct one point for this aspect since everything else is fine. A specific example of where the learning curve caused issues is when we introduced Zesty to our new development team, which struggled to understand the platform while working on a project related to AI and ML. Our system architects explained how Zesty works, but I believe a more proactive approach to training and foundational data could help teams be more self-sufficient and less reliant on internal support.

Quotes from Members

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

Pros

"CoreStack has positively impacted my organization by saving hours of time for reporting—for example, the governance report which my employees used to take at least four hours for one customer, and since I'm sending out 20 reports every month, that equates to 80 hours, thus saving me two man-weeks every month and approximately $8,000 in pure savings if I estimate $100 an hour for my architect."
"CoreStack helped me to manage the Cloud Security Posture Management across different clouds, including AWS, Azure, and other cloud providers, allowing me to view all the policies and misconfigurations in one centralized console rather than going to multiple consoles to look for violations and take actions, which was really helpful for me."
"Currently, I think CoreStack is the best FinOps tool available in the market, which is why we are using it."
"My advice for others looking into using CoreStack is that anyone who is looking to optimize their workload cost for public cloud services should start using CoreStack because of the reports and granularity it produces to optimize cost, which will benefit them."
"From a metrics perspective, Zesty reduced our Kubernetes infrastructure spend by about 24% in the first six months, we also cut wasted storage costs by roughly 18% and improved saving plan utilization by around 12%, and on the operational side, we saved roughly 40 to 50 hours a month in manual cloud cost tuning."
"I think Zesty is a really useful tool, it is really quick, it is really powerful, they are always improving it, and the customer service is flawless."
"One of the reasons we decided to onboard Zesty was that it started supporting Windows instances."
"Zesty has positively impacted our organization by providing a good return on investment, with a total reported percentage of savings around 40 to 50%."
"The turnkey aspect of Zesty is very valuable."
 

Cons

"I am not currently using CoreStack, as I moved away from CoreStack due to a lot of issues with accuracy."
"I give it an eight because, as I mentioned, a few things from the billing operations need to be added, and we need more security features, particularly since the market is increasingly demanding better security tools for cloud management platforms, including cloud security posture assessments."
"I believe the multi-tenancy feature is present, but if it could be improved and secured further, that could be beneficial."
"I noticed that some of the cost optimization reports generated potential savings while considering systems that have only maximum utilization of 1% or 2%. The recommendations made in CoreStack to delete a machine have the potential to generate major cost savings, but such machines should not be listed for deletion if they have maximum CPU utilization of 1%."
"The biggest area for improvement is still reporting depth."
"Zesty is a good solution; however, the learning curve can be complex for new users without a solid tech background, posing a challenge in training and the initial setup process."
"It would be really useful if Zesty had more code snippets that were easy to use, an easier library instead of their documentation, and something that provided an automated finish to insert code so it could give you code hints."
"I would like to get RDS-reserved instances that I could buy and sell, but that's a limitation on AWS."
"There are different resource types that we would like to leverage and get reserved instances for, such as RDS instances."
 

Pricing and Cost Advice

Information not available
"The solution’s pricing is reasonable."
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909,725 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Media Company
18%
Construction Company
14%
Manufacturing Company
11%
Healthcare Company
9%
Financial Services Firm
14%
Comms Service Provider
11%
Manufacturing Company
11%
Insurance Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business1
Large Enterprise6
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for CoreStack?
I had no concerns about pricing, setup cost, and licensing since the cost was nominal and good.
What needs improvement with CoreStack?
The basic functionality of the CSPM and the compliance were present, but there were no feature additions for those modules for the past two to three years, which was not great. From a usability per...
What is your primary use case for CoreStack?
My main use case for CoreStack was CSPM and compliance CoreStack helped me to manage the Cloud Security Posture Management across different clouds, including AWS, Azure, and other cloud providers. ...
What is your experience regarding pricing and costs for Zesty?
My experience with pricing, setup cost, and licensing was great, as we had a great account manager that we did not have to query too much about it. The free one was nearly good enough to start with...
What needs improvement with Zesty?
I find myself using the online editor the most often, and what would be better is if you could have multiple windows open to work in, something like an actual program rather than having to shift be...
What is your primary use case for Zesty?
My main use case for Zesty is the CMS. For our corporate website, my team uses Zesty's CMS to allow users from any point in the company to upload content, add posts, add pages, and promote the comp...
 

Comparisons

 

Overview

 

Sample Customers

CAMS
Walkme, Wiz, Gong, Grubhub, Singular
Find out what your peers are saying about CoreStack vs. Zesty and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.