Which is better, OpenStack or Atlantis?

Atlantis edges out OpenStack based on user ratings across 290 reviews. That said, the best pick depends on your workflow — OpenStack may be a stronger fit for specific team sizes or use cases. Review the full comparison to decide.

What are the main differences between OpenStack and Atlantis?

Key differences between OpenStack and Atlantis include pricing (OpenStack starts at undisclosed vs Atlantis at Free); target audience (OpenStack targets Large Enterprises while Atlantis serves Small Business). Use the Spotsaas comparison table to evaluate each dimension before deciding.

Do both OpenStack and Atlantis offer a Free trial?

Neither OpenStack nor Atlantis offers a free trial.

Who are the typical users of OpenStack?

OpenStack is designed for Large Enterprises, Medium Business, Small Business.

Who are the typical users of Atlantis?

Atlantis is designed for Small Business, Mid-Market, Enterprise.

What is the starting price of OpenStack and Atlantis?

The starting price of Atlantis is Freefree. Pricing for OpenStack is unavailable.

What are the best alternatives to OpenStack?

Some top alternatives to OpenStack include Microsoft Azure, Flexera Cloud Management Platform, Apache CloudStack, nOps, StackBill.

OpenStack vs Atlantis Comparison

Last updated: May 20, 2026

OpenStack

4.1(96 reviews)

Starting at Contact for pricing

Large Enterprises
Medium Business

OpenStack's modular, code-driven architecture is designed for massive scalability with thousands of compute nodes; a robust, API-driven feature set that enables the creation, sharing, and management of public and private…

View Pricing Read Reviews

Atlantis

4.5(290 reviews)

Starting at Free free

Small Business
Mid-Market

Atlantis is an open-source Terraform pull request automation tool that runs Terraform plan and apply operations from GitHub, GitLab, and Bitbucket pull requests. When a PR is opened touching Terraform files, Atlantis aut…

View Pricing Read Reviews

Atlantis leads on user satisfaction with a 4.5-star rating across 290 reviews.

OpenStack vs Atlantis — at a glance

Feature	OpenStack	Atlantis
Rating	4.1 / 5	4.5 / 5
Reviews	96	290
Starting price	Contact for pricing	Free free
Free trial	No	No
Free version	No	No
Best for	Large Enterprises, Medium Business, Small Business	Small Business, Mid-Market, Enterprise
Category	Cloud Management Platform	Cloud Management Platform
Platforms	SaaS/Web/Cloud	On-Premise, Linux, Cloud
API	Available	Available
Support modes	Online	GitHub Issues, Community Slack, Documentation
Data residency	Global	—

Key differences between OpenStack and Atlantis

Pricing: Atlantis starts at Free free. OpenStack pricing is not publicly listed.
Target audience: OpenStack is built for Large Enterprises and Medium Business, while Atlantis targets Small Business and Mid-Market.
User satisfaction: Atlantis scores higher with a 4.5-star average.
Deployment: OpenStack supports SaaS/Web/Cloud; Atlantis supports On-Premise, Linux, Cloud.

OpenStack vs Atlantis — find the better fit before you commit.

Which tool fits your team best

Which is actually cheaper for your team size

Where each product wins, per real buyers

Most Cloud Management Platform tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.

Biggest differences

Features

Pricing

Buying details

Security

Buyer feedback

Integrations

Product tour

Other options

	OpenStack (60) Talk to an expert Talk to an expert	Atlantis Talk to an expert Talk to an expert

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Biggest differences

Affiliate Disclosure

Start here before you go deeper into features.

OpenStack

Best for highly customizable, large-scale private cloud infrastructure management.

Choose if

You need a scalable, modular platform supporting thousands of compute nodes.
Your team consists of experienced cloud engineers or DevOps professionals.
You require deep API-driven customization and control over cloud services.

Consider alternatives if

You are a small business without dedicated cloud infrastructure expertise.
You want a simple, out-of-the-box cloud solution with minimal setup.

Atlantis

Best for

Small Business, Mid-Market, Enterprise

OpenStack typically suits Large Enterprises and Medium Business. Atlantis tends to fit Small Business and Mid-Market better. The right choice depends on your team size, workflow, and whether a free trial matters.

Description	OpenStack's modular, code-driven architecture is designed for massive scalability with thousands of compute nodes; a robust, API-driven feature set that enables the creation, sharing, and ... Read More about OpenStack	Atlantis is an open-source Terraform pull request automation tool that runs Terraform plan and apply operations from GitHub, GitLab, and Bitbucket pull requests. When a PR is opened ... Read More about Atlantis
Entry Level Pricing	Not Available	Starts from Free
Free Trial Availability	No free trial	No free trial
SpotScore What's this? ↗	9.2/10	9.0/10
User Ratings Based on verified Spotsaas reviews	4.1 (96)	4.5 (290)
Best Company Size	51-500 employees500+ employees	—
	Get pricing help	Get pricing help

Where each option fits best

See where each product is strongest, which teams it fits, and what causes buyers to keep looking — before you commit.

Based on buyer reviews and verified product data collected by Spotsaas.

Strengths

Key strengths

OpenStack

No key benefits available yet.

Atlantis

Terraform Review in the Code Review: Plan output in PR comments means reviewers see infrastructure changes alongside code changes — keeping IaC review in the existing GitHub workflow.
Zero State Corruption: Workspace locking serializes applies — only one apply runs per workspace at a time, preventing the concurrent-apply state corruption that plagues team Terraform.
Audit Trail in Git: Every plan and apply is tied to a PR, commit, and GitHub user — complete audit history of who changed what infrastructure and when.

Best fit

OpenStack

No best-fit guidance available yet.

Atlantis

DevOps teams implementing Terraform PR workflows without the operational overhead of Terraform Cloud or managed platforms
Engineering teams preventing concurrent Terraform state corruption through workspace locking in multi-engineer environments
Platform teams providing developers self-service infrastructure deployment via PR-comment-driven apply without giving direct Terraform access

Software Demo

Demo

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How do OpenStack and Atlantis Compare on Features?

Total Features	12 Features	3 Features
Unique Features	No unique features	No unique features
	Get Quote	Get Quote

Compare OpenStack and Atlantis on pricing

Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.

Pricing Option
Starting From	Not Available	Free
Pricing Plans	Not Available	Open Source Free Get Started Full features Apache 2.0 Self-hosted Show more +
	View detailed pricing	View detailed pricing

Other Details

Organization Types supported	Small Business Large Enterprises Medium Business Freelancers Individuals	Small Business Large Enterprises Medium Business Freelancers Individuals
Platforms Supported	Browser Based (Cloud) Installed - Windows Installed - Mac Browser Based (Cloud) Mobile - Android	Browser Based (Cloud) Installed - Windows Installed - Mac Browser Based (Cloud) Mobile - Android
Modes of support	24/7 (Live rep) Business Hours Online	24/7 (Live rep) Business Hours Online
API Support	Available	Available
	Get help choosing	Get help choosing

Security & Compliance

Certifications, data handling, and security controls for IT and compliance evaluators.

Data Residency	🌐 Global	—

OpenStack User Reviews & Rating Comparison

User Ratings	4.1 (based on 96 reviews)	4.5 (based on 290 reviews)
Rating Distribution	30 24 6 0 0	0 0 0 0 0
Spotsaas Editor’s POV generated by AI	Buyer sentiment Users value OpenStack's customization and scalability but often struggle with its complexity and documentation shortcomings. What buyers like Customizability Feature richness Community support Common complaints Complex setup Documentation quality	Buyer sentiment Buyer sentiment is very strong across 290 reviews, with consistently positive feedback. What buyers like Free and open-source (Apache 2.0) with thousands of production deployments — the most battle-tested Terraform PR automation workflow available. PR-comment-driven workflow (`atlantis plan`, `atlantis apply`) is simple, auditable, and requires no new UI to learn — all workflow happens in the existing code review process. Workspace locking prevents concurrent applies to the same Terraform workspace — the most common cause of Terraform state corruption in team environments. Common complaints Self-hosted only — requires a server to run Atlantis and webhook configuration for each repository, with ongoing maintenance responsibility. Does not scale as cleanly as managed platforms for very large numbers of stacks — teams with 100+ stacks often outgrow Atlantis and move to Spacelift or Terraform Cloud.
Pros and Cons	Highly customizable with root-level service modification Comprehensive feature set including virtualization, networking, and container support Strong community support enabling continuous development and contributions Steep learning curve and complex setup process Documentation gaps and inconsistent architecture complicate integration	Free and open-source (Apache 2.0) with thousands of production deployments — the most battle-tested Terraform PR automation workflow available. PR-comment-driven workflow (`atlantis plan`, `atlantis apply`) is simple, auditable, and requires no new UI to learn — all workflow happens in the existing code review process. Workspace locking prevents concurrent applies to the same Terraform workspace — the most common cause of Terraform state corruption in team environments. Self-hosted only — requires a server to run Atlantis and webhook configuration for each repository, with ongoing maintenance responsibility. Does not scale as cleanly as managed platforms for very large numbers of stacks — teams with 100+ stacks often outgrow Atlantis and move to Spacelift or Terraform Cloud.
Positive Reviews	No reviews available for the product	No reviews available for the product
	Read reviews	Read reviews

List of Customers

Customers	Award Solutions Inspur	No Customers information available.

Media and Screenshots

Videos	2 Videos	No videos available.

Top Alternatives to OpenStack and Atlantis in 2026

Alternatives	Microsoft Azure 4.1 Flexera Cloud Management Platform Apache CloudStack 4.2	No Alternative products available.

Frequently asked questions

Which is better, OpenStack or Atlantis?: Atlantis edges out the other on user ratings (4.5 vs 4.1). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
Do OpenStack and Atlantis offer a free trial?: Neither OpenStack nor Atlantis currently lists a free trial.
What is the starting price of OpenStack vs Atlantis?: OpenStack starts at Contact for pricing. Atlantis starts at Free free.
What are the top alternatives to OpenStack?: Top alternatives to OpenStack include Microsoft Azure, Flexera Cloud Management Platform, Apache CloudStack, nOps, StackBill.

OpenStack vs Atlantis Comparison

OpenStack

Atlantis

OpenStack vs Atlantis — at a glance

Key differences between OpenStack and Atlantis

OpenStack vs Atlantis — find the better fit before you commit.

OpenStack

Atlantis

Download this OpenStack vs Atlantis comparison

Biggest differences

Description

Entry Level Pricing

Free Trial Availability

SpotScore

User Ratings

Best Company Size

Where each option fits best

Key strengths

Best fit

Software Demo

Demo

Get shortlist help from a software advisor

How big is your team?

How do OpenStack and Atlantis Compare on Features?

Compare OpenStack and Atlantis on pricing

Other Details

Organization Types supported

Platforms Supported

Modes of support

API Support

Security & Compliance

OpenStack User Reviews & Rating Comparison

List of Customers

Customers

Media and Screenshots

Videos

Top Alternatives to OpenStack and Atlantis in 2026

Related Blogs and Articles for Cloud Management Platform

Frequently asked questions