CloudStack vs Spot by Flexera comparison

Apache and Spot - A Flexera company are both solutions in the Cloud Management category. Apache is ranked #7 with an average rating of 8.2, while Spot - A Flexera company is ranked #20 with an average rating of 9.0. Apache holds a 2.1% 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

3,636 Views
3,491 Comparison Views

94% willing to recommend

Spot by Flexera

Read 6 Spot by Flexera reviews

5,877 Views
2,116 Comparison Views

100% willing to recommend

CloudStack

Spot by Flexera

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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: August 2026).

Buyer's Guide

CloudStack vs. Spot by Flexera

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

Spot by Flexera

Ranking in Cloud Management

20th

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 (10th), Containers as a Service (CaaS) (3rd), Cloud Cost Management (7th)

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 Spot by Flexera is 2.0%, up from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Cloud Management Mindshare Distribution
Product	Mindshare (%)
CloudStack	2.1%
Spot by Flexera	2.0%
Other	95.9%

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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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.

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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

"CloudStack is our private IaaS cloud which helps us manage resource usage in our company and it is also a great PoC environment."

"The back-end database design is simple and straight forward. The user interface is designed with external users in mind. Billing is relatively straightforward with this product. Not being restricted to just one hypervisor was nice."

"The most valuable feature from my point of view is access to environment via console through separate browser window."

"My company could implement a lot of customizations and integration with load balancers and DNS. When we started using CloudStack, we didn't have that integration, so we developed that. We could fix anything missing in the solution."

"Being able to completely virtualize a customer’s physical data center and migrate any workload into the cloud, and cover the most complex use cases - while offering high performance and true volume QoS, backed by SSD-based managed storage - is what differentiates it from other IaaS solutions."

"We chose CloudStack because we saw it with a better TCO ratio, balancing innovation, and starting the DevOps culture with a low operational overhead."

"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."

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

More CloudStack pros

"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."

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

"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."

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

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

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

Cons

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

"After Citrix divested CloudPlatform to Accelerite, commercial support was absolutely atrocious."

"More integration with third-party products (we know that OpenStack has a better level of integration)."

"I think that container technology in CloudStack is an area that needs to be improved."

"Companies need to be knowledgeable about cloud technology. It's not for novice users."

"The stability is problematic, in part, because there is no support."

"We recognize that CloudStack is an easy-to-use cloud management platform and, in my opinion, there has been a large number of improvements in the past few years, particular when it comes to the modern UI and overall ease of management. However, I believe that CloudStack needs to grow their marketing in the commercial side. They don't have a great piece of market share right now."

"We did encounter issues with stability, and the main issue was secondary storage. When it is not available, XenServers and hypervisors are affected. And CS doesn’t do anything to reboot, or fix. Come to think of it, maybe it shouldn’t, considering their approach – CS just orchestrates everything else on the hypervisor and storage level."

More CloudStack cons

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

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

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

"I chose a rating of nine because it may sometimes be a bit overwhelming for newcomers, and there are also a few areas in which the EKS Kubernetes level granularity is a little missing."

"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."

Pricing and Cost Advice

"There is no license, so the product is free unless you are buying professional technical support services."

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

"The Apache CloudStack is open source, so you do not have licenses to purchase."

"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."

"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."

"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."

Information not available

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Top Industries

By visitors reading reviews

Construction Company

Outsourcing Company

Comms Service Provider

Manufacturing Company

Construction Company

13%

Financial Services Firm

12%

Manufacturing Company

11%

Comms Service Provider

10%

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...

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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 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...

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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...

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Comparisons

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Compared 11% of the time

VMware Aria Automation vs CloudStack

Compared 9% of the time

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Compared 6% of the time

Sangfor HCI - Hyper Converged Infrastructure vs CloudStack

Compared 5% of the time

Persistent Intelligent Cloud (PiCloud) vs CloudStack

Compared 4% of the time

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Compared 4% of the time

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Compared 4% of the time

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Compared 4% of the time

DoiT vs Spot by Flexera

Compared 3% of the time

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Product Reports

Buyer's Guide

CloudStack

August 2026

Download CloudStack product report

Buyer's Guide

Spot by Flexera

July 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

August 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: August 2026.

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