CloudStack vs Scalr comparison

Apache and Scalr are both solutions in the Cloud Management category. Apache is ranked #7 with an average rating of 8.2, while Scalr is ranked #25 with an average rating of 10.0. Apache holds a 2.1% mindshare in CM, compared to Scalr’s 0.9% mindshare. Additionally, 94% of Apache users are willing to recommend the solution, compared to 100% of Scalr users who would recommend it.

CloudStack

Read 34 CloudStack reviews

3,636 Views
3,491 Comparison Views

94% willing to recommend

Scalr

Read 2 Scalr reviews

1,213 Views
1,201 Comparison Views

100% willing to recommend

CloudStack

Scalr

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between CloudStack and Scalr based on real PeerSpot user reviews.

Find out in this report how the two Cloud Management solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed CloudStack vs. Scalr Report (Updated: August 2026).

Buyer's Guide

CloudStack vs. Scalr

August 2026

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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

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

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
Product	Mindshare (%)
CloudStack	2.1%
Scalr	0.9%
Other	97.0%

Cloud Management

Featured Reviews

Tharun Kumar Reddy Thamatam

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.

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Shubham Mandavkar

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.

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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."

More CloudStack pros

"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."

More CloudStack cons

"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

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Top Industries

By visitors reading reviews

Construction Company

Comms Service Provider

Outsourcing Company

Manufacturing Company

22%

Computer Software Company

10%

Construction Company

10%

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	13
Midsize Enterprise	6
Large Enterprise	12

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.

See all answers

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...

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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...

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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...

See all answers

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 ...

See all answers

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...

See all answers

Comparisons

OpenNebula vs CloudStack

Compared 11% of the time

VMware Aria Automation vs CloudStack

Compared 9% of the time

Turbo360 (Formerly Serverless360) vs CloudStack

Compared 6% of the time

Sangfor HCI - Hyper Converged Infrastructure vs CloudStack

Compared 5% of the time

Persistent Intelligent Cloud (PiCloud) vs CloudStack

Compared 5% of the time

More CloudStack Competitors

Spacelift vs Scalr

Compared 21% of the time

Flexera Cloud Management Platform (CMP) vs Scalr

Compared 15% of the time

CloudBolt vs Scalr

Compared 14% of the time

Tieto OneCloud vs Scalr

Compared 14% of the time

Cloudify vs Scalr

Compared 9% of the time

More Scalr Competitors

Product Reports

Buyer's Guide

CloudStack

August 2026

Download CloudStack product report

Buyer's Guide

Cloud Management

August 2026

Download Scalr product report

Also Known As

Vmops, Cloud.com

No data available

Overview

CloudStack offers an easy-to-manage platform compatible with multiple hypervisors, enabling seamless networking and efficient workload scaling. Its advanced APIs and open-source nature facilitate automation and customization, making it ideal for extensive cloud environments.

CloudStack is recognized for ease of setup, robust networking, and hypervisor compatibility. Supporting a range of workloads, it scales efficiently, offering flexible features like VM migration, private networking, and multi-zone support. Its user-friendly open-source design aids troubleshooting and customization, making it ideal for managing broad cloud deployments. Despite needing upgrades in interface and integration with third-party vendors and container technology, CloudStack remains a strong choice for businesses seeking effective virtualization solutions. Improvements in documentation, regional management, and emerging tech support would enhance usability and performance.

What are CloudStack's notable features?

Hypervisor compatibility: Supports diverse virtualization technologies for flexible deployment.
Robust networking: Ensures reliable and scalable network infrastructure management across zones.
Advanced APIs: Facilitates automation and integration to streamline cloud operations.
VM migration: Enhances operational flexibility with seamless virtual machine relocations.
Private networking: Provides secure and isolated network environments for critical tasks.
Multi-zone support: Offers scalable solutions for distributed cloud management.

What benefits and ROI should users consider?

Open-source model: Allows extensive customization without licensing costs, enhancing ROI.
Ease of management: Simplifies operations, reducing time and resources spent on maintenance.
Scalability: Enables growth and adaptability, fostering agility in expanding businesses.
Flexibility: Supports various workloads and environments, meeting diverse operational needs.

CloudStack is implemented across industries, used in managing virtual environments, offering IaaS in public, private, and hybrid cloud models. Companies use it for internal virtualization and customer service, integrating with hypervisors across data centers to orchestrate virtual machines and support development and testing globally.

Apache

Scalr is a cloud management platform designed to help businesses efficiently manage and optimize their cloud infrastructure. It offers automated workflows and policies to streamline operations and enhance productivity.

Scalr stands out in cloud management with its robust scalability, allowing teams to expand their cloud resources effortlessly. By providing administrators with tools for policy enforcement and governance, it ensures compliance and cost control. Scalr's modular architecture supports seamless integration with existing IT infrastructure, allowing organizations to maintain flexibility and efficiency. With Scalr, businesses can focus on strategic initiatives without compromising on operational excellence.

What are the core features of Scalr?

Policy-driven automation: Ensures consistent cloud operations through customized policies.
Cost management tools: Offers real-time insights to optimize spending on cloud resources.
Multi-cloud support: Integrates with major cloud providers for diverse deployment needs.
Self-service interface: Empowers users with streamlined access to required resources.

What are the key benefits of using Scalr?

Efficiency: Automates repetitive tasks to save time and reduce manual errors.
Cost savings: Monitors and manages expenses effectively to prevent budget overruns.
Compliance: Facilitates adherence to industry standards and internal policies.
Scalability: Adjusts to both growth and fluctuations in cloud demand seamlessly.

Scalr is implemented across industries such as financial services and healthcare, where reliability and compliance are crucial. In these sectors, Scalr's automation and governance capabilities streamline operations while ensuring strict regulatory compliance, thereby supporting mission-critical workloads efficiently.

Scalr

Sample Customers

GreenQloud, Exoscale, TomTom, ASG, PC Extreme, ISWest, Grid'5000

JPL, Expedia, Samsung, Acxiom, Accenture, Sony, Merkle, Autodesk

Buyer's Guide

CloudStack vs. Scalr

August 2026

Free Report: CloudStack vs. Scalr

Find out what your peers are saying about CloudStack vs. Scalr and other solutions. Updated: August 2026.

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