Atlantis vs Fly.io Comparison
Atlantis
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…
Fly.io
Starting at Free free
- Small Business
- Mid-Market
Fly.io is an application deployment platform that runs full-stack applications in lightweight virtual machines at the network edge — close to users globally. Unlike traditional PaaS platforms, Fly.io provides hardware-le…
Atlantis leads on user satisfaction with a 4.5-star rating across 290 reviews.
Atlantis vs Fly.io — at a glance
| Feature | Atlantis | Fly.io |
|---|---|---|
| Rating | 4.5 / 5 | 4.4 / 5 |
| Reviews | 290 | 180 |
| Starting price | Free free | Free free |
| Free trial | No | No |
| Free version | No | No |
| Best for | Small Business, Mid-Market, Enterprise | Small Business, Mid-Market, Enterprise |
| Category | Cloud Management Platform | Cloud Platform as a Service (PaaS) Software |
| Platforms | On-Premise, Linux, Cloud | Cloud |
| API | Available | Available |
| Support modes | GitHub Issues, Community Slack, Documentation | Help Center, Community Forum, Email Support |
Key differences between Atlantis and Fly.io
- Pricing: Atlantis starts at Free free, while Fly.io starts at Free free.
- User satisfaction: Atlantis scores higher with a 4.5-star average.
- Deployment: Atlantis supports On-Premise, Linux, Cloud; Fly.io supports Cloud.
Atlantis vs Fly.io — 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
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Biggest differences
Start here before you go deeper into features.
Small Business, Mid-Market, Enterprise
Small Business, Mid-Market, Enterprise
Atlantis typically suits Small Business and Mid-Market. Fly.io 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 | 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 | Fly.io is an application deployment platform that runs full-stack applications in lightweight virtual machines at the network edge — close to users globally. Unlike traditional PaaS ... Read More about Fly.io |
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Entry Level Pricing |
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Free Trial Availability |
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SpotScoreWhat's this? ↗ | 9.0/10 | 8.8/10 |
User RatingsBased on verified Spotsaas reviews | ||
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.
Key strengths
- 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.
- Low-Latency Global Applications: Fly.io deploys applications at the network edge close to users in 35+ regions, reducing API response times for global user bases without custom CDN configuration.
- AI Workloads on PaaS Simplicity: GPU machine support lets AI inference APIs run on Fly.io without moving to complex ML infrastructure platforms like SageMaker or Vertex AI.
- Maximum VM Isolation at PaaS Prices: Firecracker VMs provide hardware-level tenant isolation — meaningful for multi-tenant SaaS apps handling sensitive customer data.
Best fit
- 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
- API teams needing sub-50ms response times globally without managing multi-region infrastructure
- AI startups running GPU inference endpoints on PaaS infrastructure without ML platform complexity
- HealthTech applications requiring HIPAA-compliant hosting with BAA agreements
Software Demo
Demo |
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How do Atlantis and Fly.io Compare on Features?
Total Features | 3 Features | 8 Features |
|---|---|---|
Unique Features | No unique features | No unique features |
Get Quote | Get Quote |
Compare Atlantis and Fly.io 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.
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Other Details
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API Support |
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Get help choosing | Get help choosing |
Atlantis User Reviews & Rating Comparison
User Ratings | 4.5 (based on 290 reviews) | 4.4 (based on 180 reviews) |
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Rating Distribution | ||
Spotsaas Editor’s POV generated by AI | Buyer sentiment Buyer sentiment is very strong across 290 reviews, with consistently positive feedback. What buyers like
Common complaints
| Buyer sentiment Buyer sentiment is positive across 180 reviews, with strong overall satisfaction. What buyers like
Common complaints
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Pros and Cons |
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Related Blogs and Articles for Cloud Platform As A Service Paas Software
Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, Atlantis or Fly.io?
- Atlantis edges out the other on user ratings (4.5 vs 4.4). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do Atlantis and Fly.io offer a free trial?
- Neither Atlantis nor Fly.io currently lists a free trial.
- What is the starting price of Atlantis vs Fly.io?
- Atlantis starts at Free free. Fly.io starts at Free free.