No more typing reviews! Try our Samantha, our new voice AI agent.

CloudStack vs Scalr 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

CloudStack
Ranking in Cloud Management
7th
Average Rating
8.0
Reviews Sentiment
6.5
Number of Reviews
34
Ranking in other categories
No ranking in other categories
Scalr
Ranking in Cloud Management
25th
Average Rating
9.0
Reviews Sentiment
5.8
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Cloud Management category, the mindshare of CloudStack is 2.1%, down from 4.7% compared to the previous year. The mindshare of Scalr is 0.9%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Management Mindshare Distribution
ProductMindshare (%)
CloudStack2.1%
Scalr0.9%
Other97.0%
Cloud Management
 

Featured Reviews

Tharun Kumar Reddy Thamatam - PeerSpot reviewer
Senior Infrastructure Consultant at Infosys
Achieving seamless infrastructure management with optimized network and user access controls
I believe enhancements could be made in CloudStack, particularly in the management servers. I had the opportunity to collaborate with one of the Apache CloudStack developers, leading to the installation of additional agents for better information retrieval from hypervisors. We implemented configurations, ensuring consistency across hosts and VMs. We also utilized Ansible or YAML files to automate password upgrades during patching activities and database management, showcasing our customization efforts for improvement. For future releases, it would be beneficial if Apache enhanced CloudStack by integrating alerting systems directly. We've had instances where hypervisors experienced overloads without prior alerts, so proactive alerts within the tool would better prepare us for addressing issues swiftly, preventing disruption in business operations. A portal summarizing system metrics alongside alert capabilities would greatly enhance our operational efficiency.
Shubham Mandavkar - PeerSpot reviewer
Associate Technical Consultant at a computer software company with 51-200 employees
Modern API design has transformed documentation workflows and supports interactive testing
Scalr helps with API testing and client functionality, which includes a built-in Try It tool similar to Postman, allowing developers to test endpoints, manage environment variables, and see request history. The faster response is due to the CI/CD workflow integrating with GitHub Actions and another tool to automatically update and version documentation as the codebase evolves. Other features include data formatting, where I can convert strings to uppercase, trim white spaces, or concatenate first and last names into a full name field. In scientific contexts, a scalar is a physical quantity described only by magnitude with no direction. In environmental aspects, monitoring and measuring temperature, pressure, or humidity, resource tracking, and calculating mass, volume, density, or time duration reflect the best impact on my organization. One specific outcome I have noticed is scholarly publishing. Scalr is also an open-source platform for born-digital, media-rich publishing, allowing scholars to create interactive online books that integrate high-resolution media with sophisticated archival structures.

Quotes from Members

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

Pros

"This is one of the major products that help to handle all of the NFV Infrastructure management services (IaaS), and it has helped us to quickly gain understanding and feel more powerful with respect to virtualization."
"We acquired some good clients for our billing and control portal solutions with CloudStack and it improved our business greatly."
"CloudStack has greatly helped integrate our existing infrastructure because we manage a massive cloud platform with thousands of VMs and around 1,200 to 1,500 hypervisors."
"You can use a single API to get things done, rather than multiple APIs on multiple modules."
"The most valuable feature from my point of view is access to environment via console through separate browser window."
"We increased our IaaS sales by 30% and our deploy time of VM/instances has been reduced from one day to one minute."
"The API with CloudStack made integration into various external facing web applications simple enough."
"We had a relevant reduction of bureaucracy tasks."
"I was able to deal with requests without needing every server on; I could turn them off."
"After all the years of helping enterprises implement API strategies at SmartBear, I can confidently say Scalr is what the industry has been waiting for."
 

Cons

"From time to time there is a bug in calculating limits of resources for customer domain/account. Maybe it’s a problem with 4.9.2."
"The product has evolved a lot since the first versions in which it was very complicated to do version updates, and had various problems."
"The numerous, multi-layered drill-down menus make it difficult to find one simple knob to turn."
"It's really hard to delete zones, clusters, datacenters. You need to follow strict rules, which were not properly documented at the time."
"With all that simplicity come limitations that need to be understood and planned for: Accounts, domains, and user accounts are set up with public cloud in mind, not private."
"The product could improve by embracing newer technologies like GPU virtualization."
"There are some minor things that can be improved even more such as, perhaps, a bit more polishing on the GUI side to catch up with the API possibilities (which are really extensive) but otherwise nothing critical."
"The area of Apache CloudStack that could stand the most improvement is the functionality/features around the virtual routers. They can be somewhat cumbersome to deal with at times and are the least stable piece of the product."
"Regarding licensing, if I buy a licensing key, it is beneficial, but if I have a lesser standing, it is not as good."
"We did use AWS autoscaling but Rackspace left something to be desired."
 

Pricing and Cost Advice

"CloudStack is an open source solution, so you don't need to pay anything for it. When our company develops something specially for CloudStack, it is donated to the Apache Software Foundation and provided to anyone that wants to use it."
"It is a 100% open-source solution needing just an Apache license. Also, there are no hidden fees to be paid."
"As far as I know, CS is still free of charge. If you want to pay some money, Citrix Cloud Platform is based on CS, I think. As for hypervisors – everything as usual, you need to pay for VMware and vCenter. As for XenServer, recently they changed the free feature list, so you may need to pay some money to get useful features like XenMotion."
"There is no license, so the product is free unless you are buying professional technical support services."
"The Apache CloudStack is open source, so you do not have licenses to purchase."
"The solution is open-source and free."
"​Give an effort to planning. If possible, contract a specialized consultant company for the initial setup and knowledge transfer.​​"
"CloudStack is an open-source product."
Information not available
report
Use our free recommendation engine to learn which Cloud Management solutions are best for your needs.
909,725 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Construction Company
9%
Comms Service Provider
9%
Outsourcing Company
9%
Manufacturing Company
8%
Manufacturing Company
22%
Computer Software Company
10%
Construction Company
10%
University
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise6
Large Enterprise12
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for CloudStack?
CloudStack is open-source, so there is no cost apart from learning. Billing solutions, if outsourced, come at a moderate cost.
What needs improvement with CloudStack?
Enhancements for CloudStack can focus on integrating more hypervisors, as mentioned regarding current features. We're working on a new feature that will allow for certain limited functions, but ove...
What is your primary use case for CloudStack?
My usual use cases for CloudStack involve an AWS style private cloud or public cloud. I can deploy an AWS style cloud using the open source tool that is CloudStack. The use case depends on the cust...
What needs improvement with Scalr?
Scalr can be improved by logical simplification, wrapping complex logic into reusable functions to keep main queries readable. Data validation using functions like is null provides default values w...
What is your primary use case for Scalr?
Scalr refers to several distinct technologies, with the most common modern use case involving API documentation and database function. Scalr is a modern alternative to Swagger UI used for creative ...
What advice do you have for others considering Scalr?
Scalr is deployed on-premises only because Scalr is a physical quantity fully described by magnitude value. Regarding the mathematical engine and scripting language, the core features are generally...
 

Also Known As

Vmops, Cloud.com
No data available
 

Overview

 

Sample Customers

GreenQloud, Exoscale, TomTom, ASG, PC Extreme, ISWest, Grid'5000
JPL, Expedia, Samsung, Acxiom, Accenture, Sony, Merkle, Autodesk
Find out what your peers are saying about CloudStack vs. Scalr and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.