CloudStack vs Spot by Flexera comparison

Apache and Spot - A Flexera company are both solutions in the Cloud Management category. Apache is ranked #8 with an average rating of 8.2, while Spot - A Flexera company is ranked #19 with an average rating of 9.0. Apache holds a 2.3% mindshare in CM, compared to Spot - A Flexera company’s 2.0% mindshare. Additionally, 94% of Apache users are willing to recommend the solution, compared to 100% of Spot - A Flexera company users who would recommend it.

CloudStack

Read 34 CloudStack reviews

2,863 Views
2,691 Comparison Views

94% willing to recommend

Spot by Flexera

Read 6 Spot by Flexera reviews

3,810 Views
1,448 Comparison Views

100% willing to recommend

CloudStack

Spot by Flexera

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Jan 19, 2026

CloudStack and Spot by Flexera compete in cloud environment management. Spot by Flexera tends to have the upper hand with its robust feature set, particularly in cost management.

Features: CloudStack supports multiple hypervisors, offers robust virtualization management, and benefits from an active open-source community. Spot by Flexera delivers advanced cost optimization, seamless cloud integration, and automation tools, providing significant value in dynamic environments.

Room for Improvement: CloudStack can improve user interface design and enhance documentation for complex deployments. It may also benefit from expanding integration capabilities with new technologies. Spot by Flexera could enhance its initial cost structure, simplify user onboarding, and provide more granular control over cost optimization settings for better user autonomy.

Ease of Deployment and Customer Service: CloudStack offers straightforward deployment with comprehensive documentation. Spot by Flexera streamlines setup through automated configurations and provides proactive customer support, enhancing deployment efficiency.

Pricing and ROI: CloudStack typically involves lower startup costs due to its open-source model, offering potentially strong ROI for cost-conscious businesses. Spot by Flexera requires a higher initial investment but promises substantial long-term savings and favorable ROI through its advanced cost-saving features.

To learn more, read our detailed CloudStack vs. Spot by Flexera Report (Updated: April 2026).

Buyer's Guide

CloudStack vs. Spot by Flexera

April 2026

Download the complete report

Helped 893,164 peers since 2012

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

8th

Average Rating

8.0

Reviews Sentiment

6.5

Number of Reviews

Ranking in other categories

No ranking in other categories

Spot by Flexera

Ranking in Cloud Management

19th

Average Rating

8.6

Reviews Sentiment

7.5

Number of Reviews

Ranking in other categories

Server Virtualization Software (14th), Cloud Operations Analytics (1st), Cloud Analytics (3rd), Compute Service (9th), Containers as a Service (CaaS) (3rd), Cloud Cost Management (5th)

Mindshare comparison

As of May 2026, in the Cloud Management category, the mindshare of CloudStack is 2.3%, down from 5.5% compared to the previous year. The mindshare of Spot by Flexera is 2.0%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Cloud Management Mindshare Distribution
Product	Mindshare (%)
CloudStack	2.3%
Spot by Flexera	2.0%
Other	95.7%

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.

Read full review

Bruna Müller

License manager at a financial services firm with 10,001+ employees

Centralized asset data has transformed how we manage licenses and make cost-saving decisions

One problem that we faced using Spot by Flexera is that in certain servers, the data was not being updated correctly, and we had a certain delay. For example, someone was using a computer, and then this user received a new one. In Spot by Flexera, we could see both computers, the old and the new one, but the system was not recognizing that the old one was no longer being used. We had a couple of IT assets that were not being used, and we had this information in our internal servers, but Spot by Flexera was not able to update on time. We had to fix this information manually.

Read full review

Quotes from Members

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

Pros

"It works, and pretty much always has. Reliability and support for enterprise features, with a multi-tenant interface, makes CloudStack a very compelling solution."

"The APIs for automation in CloudStack are excellent; everything is API-driven, and while the API is very rich and hard to learn, you can do everything you would want to do, including everything in the user interface and more."

"CloudStack is highly stable."

"I can recommend CloudStack because there are a lot of large companies using it in production for critical mission systems, and everything else."

"Killer features for me were: support for many hypervisors, ability to match business logic, "everything in one box," available APIs."

"CloudStack has reduced the time to market for the delivery of new products."

"We increased our IaaS sales by 30% and our deploy time of VM/instances has been reduced from one day to one minute."

"I have been impressed by CloudStack's most recent updates around Kubernetes. In particular, they have worked with Kubernetes to support the Cluster API, and you can now easily integrate Kubernetes into CloudStack and get access to a lot of good features."

More CloudStack pros

"My compute costs have reduced, capacity and production output have increased, and my overhead for maintaining custom scripts or doing some of the tasks manually has been saved."

"The solution offers both block access and file access, making it a nice solution for customers."

"By using Spot by Flexera across a year, we were able to save more than 500,000 euros."

"Spot has positively impacted our organization by automating cloud resource management, which has significantly cut costs and improved efficiency."

"Cost saving is the main benefit, and the manual effort required for reviewing and purchasing savings plans and other RIs is something we do not have to manage manually now, as we get automatic suggestions from Spot."

"The solution helps us to manage and scale automatically whenever there is a limit to the increase in the application workflow."

Cons

"The product has evolved a lot since the first versions in which it was very complicated to do version updates, and had various problems."

"Multi-deployments."

"The area of improvement could be the regionalization aspect. For example, managing multiple regions or HubStack deployments together was not thought out thoroughly in the versions I used. We faced issues around managing the global infrastructure and had to develop around it."

"The installation of CloudStack can be quite challenging because you need a good understanding of the product before starting."

"It is not widely used so Google does not help very much when you are troubleshooting, and the CloudStack forum is not very active."

"Accounts, domains, and user accounts are set up with public cloud in mind, not private."

"The user can't upload SSH keys from the UI. We have to use the API for this, and it is not always convenient."

"I think CloudStack needs to promote itself better, since I believe it a better solution than OpenStack."

More CloudStack cons

"There are no particular areas for improvement I can identify."

"The solution doesn't have support from OCI, and it should start working to onboard OCI."

"One problem that we faced using Spot by Flexera is that in certain servers, the data was not being updated correctly, and we had a certain delay."

"I have not seen a return on investment yet."

Pricing and Cost Advice

"CloudStack is an open-source product."

"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."

"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."

"Give an effort to planning. If possible, contract a specialized consultant company for the initial setup and knowledge transfer."

"The solution is open-source and free."

"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."

"It is a 100% open-source solution needing just an Apache license. Also, there are no hidden fees to be paid."

Information not available

See which vendors are best for you

Use our free recommendation engine to learn which Cloud Management solutions are best for your needs.

See recommendations

893,164 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Educational Organization

Financial Services Firm

Comms Service Provider

Computer Software Company

Financial Services Firm

13%

Manufacturing Company

11%

Computer Software Company

Healthcare Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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

By reviewers
Company Size	Count
Small Business	2
Large Enterprise	6

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...

See all answers

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...

See all answers

What needs improvement with Spot Ocean?

See all answers

What is your primary use case for Spot Ocean?

For the past two years, I have been developing a project to implement Spot by Flexera as a software asset management tool. It is used to manage all the IT assets and software licenses within all th...

See all answers

What advice do you have for others considering Spot Ocean?

The interface of Spot by Flexera was very simple to use. Spot by Flexera Academy had lots of important information that made the usage even easier. In general, I do not think there are any addition...

See all answers

Comparisons

OpenNebula vs CloudStack

Compared 15% of the time

VMware Aria Automation vs CloudStack

Compared 8% of the time

Sangfor HCI - Hyper Converged Infrastructure vs CloudStack

Compared 5% of the time

Turbo360 (Formerly Serverless360) vs CloudStack

Compared 5% of the time

Flexera Cloud Management Platform (CMP) vs CloudStack

Compared 4% of the time

More CloudStack Competitors

IBM Turbonomic vs Spot by Flexera

Compared 6% of the time

AWS Fargate vs Spot by Flexera

Compared 4% of the time

AWS Lambda vs Spot by Flexera

Compared 4% of the time

DoiT vs Spot by Flexera

Compared 4% of the time

Apache Spark vs Spot by Flexera

Compared 3% of the time

More Spot by Flexera Competitors

Product Reports

Buyer's Guide

CloudStack

May 2026

Download CloudStack product report

Buyer's Guide

Spot by Flexera

April 2026

Download Spot by Flexera product report

Also Known As

Vmops, Cloud.com

Spot Ocean, Spot Elastigroup, Spot Eco

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

Spot by Flexera provides automated cost optimization and container management with multi-cloud integration, achieving up to 70% savings and greater efficiency. It adapts to demand changes using AI-driven insights.

Spot enables organizations to optimize cloud infrastructure in environments such as Kubernetes, AKS, EKS, and AWS. It offers advanced automation features for managing resources, leading to reduced overhead and increased production output. Spot's intelligent autoscaling and node replacement capabilities enhance scalability and reliability. While the platform lacks some granularity in EKS Kubernetes insights, it remains stable and mature, helping organizations minimize costs and improve resource utilization. Opportunities for improvement include OCI support, more detailed multi-cloud integrations, and enhanced Kubernetes insights.

What features does Spot by Flexera offer?

Automated Cost Optimization: Efficiently manages expenditure and provides significant savings.
Advanced Container Management: Streamlines container management across multiple platforms.
Multi-Cloud Integration: Seamlessly integrates with major cloud providers.
Intelligent Autoscaling: Automatically adjusts resources based on demand changes.
Zero-Downtime Node Replacement: Ensures seamless transitions without interrupting workflows.
Integration with AWS: Enhances scalability and system reliability.

What are the benefits of using Spot by Flexera?

Cost Efficiency: Achieves up to 70% cost savings through intelligent solutions.
Increased Production Output: Improves overall productivity by streamlining processes.
Scalability and Reliability: Offers robust autoscaling and no-downtime node replacement.
Support for Financial Governance: Aids in effective financial management and planning.

In industries heavily reliant on cloud-based services, Spot by Flexera is crucial for optimizing resource management and cost efficiency. Organizations leveraging Spot in sectors like technology and finance benefit from real-time optimization techniques and improved governance processes.

Spot - A Flexera company

Sample Customers

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

Freshworks, Zalando, Red Spark, News, Trax, ETAS, Demandbase, BeesWa, Duolingo, intel, IBM, N26, Wix, EyeEm, moovit, SAMSUNG, News UK, ticketmaster

Buyer's Guide

CloudStack vs. Spot by Flexera

April 2026

Free Report: CloudStack vs. Spot by Flexera

Find out what your peers are saying about CloudStack vs. Spot by Flexera and other solutions. Updated: April 2026.

DOWNLOAD NOW

893,164 professionals have used our research since 2012.

See our CloudStack vs. Spot by Flexera report.

See our list of best Cloud Management vendors.

We monitor all Cloud Management reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.