We use provider pages as the source of truth.
Pricing, plan names, free plan availability, and trial details are checked against official provider pages before being used in ProPicked scores. Vendor relationships do not change rankings, scores, or recommendations.
Provider Pricing Facts
Provider pricing facts: Fly.io offers a free plan; Dokku offers a free plan.
Source and Freshness Note
Source and freshness note: pricing, free-plan, and feature signals are compared from public provider data and updated comparison records. Last checked May 2026.
Fly.io vs Dokku: Honest Comparison (2026)
Fly.io
Run your applications at the edge close to users worldwide
Dokku
The smallest PaaS implementation you have ever seen
We may earn a commission through links on this page · Editorial policy
Quick Verdict:
Fly.io wins with 8.3/10 vs 8.0/10. Choose Fly.io for more features. Choose Dokku for ease of use.
Fly.io wins this comparison with a score of 8.3/10 vs 8.0/10. Both offer free plans. Fly.io stands out for true multi-region deployment puts applications close to users worldwide for minimal latency, while Dokku excels at extremely lightweight and easy to set up. This is confirmed by our feature analysis where Fly.io also scores higher (7.9/10).
| Feature | Fly.io | Dokku |
|---|---|---|
| Overall Rating | 8.3/10 | 8.0/10 |
| Ease of Use | 7.5/10 | 7.6/10 |
| Features | 8.7/10 | 7.9/10 |
| Value for Money | 8.4/10 | 8.0/10 |
| Customer Support | 7.2/10 | 7.9/10 |
| Free Plan | Yes ✓ | Yes ✓ |
| Starting Price | $29/mo | $849/mo |
| Feature Score | 7.9/10 | 3.5/10 |
| Top Strength | True multi-region deployment puts applications close to users worldwide for minimal latency | Extremely lightweight and easy to set up |
| Biggest Weakness | Firecracker micro-VMs provide near-instant boot times and efficient resource utilization | Single-server architecture limits scaling |
| Best For | Fly.io is best for developers building latency-sensitive applications that benefit from multi-region edge deployment. It's the top choice for real-time apps | Solo developers deploying side projects |
| Winner | Fly.io (8.3/10) | |
What is Fly.io?
Run your applications at the edge close to users worldwideFly.io is an application hosting platform that runs apps on lightweight Firecracker micro-VMs distributed across 30+ regions worldwide. Unlike traditional hosting that places apps in a single data center, Fly.io deploys your application close to users at the edge, dramatically reducing latency. The platform supports any language or framework via Docker and offers managed PostgreSQL, Redis, and object storage. Fly.io is particularly popular for deploying Elixir, Rails, and full-stack applications that benefit from multi-region distribution.
- +True multi-region deployment puts applications close to users worldwide for minimal latency
- +Firecracker micro-VMs provide near-instant boot times and efficient resource utilization
- +Generous free tier includes 3 VMs and shared resources for small projects
- •Fly.io is best for developers building latency-sensitive applications that benefit from multi-region edge deployment. It's the top choice for real-time apps
- •global SaaS products
- •and Elixir/Phoenix applications that need to run close to users worldwide
What is Dokku?
The smallest PaaS implementation you have ever seenDokku is a lightweight, open-source PaaS built on Docker that provides Heroku-like deployment workflows on a single server. It supports Heroku buildpacks, Dockerfile deployments, automatic SSL via Let's Encrypt, persistent storage, and a plugin system for databases, caching, and other services, all managed through simple Git push commands.
- +Extremely lightweight and easy to set up
- +Familiar Heroku-style git push workflow
- +Active plugin ecosystem for databases and services
- •Solo developers deploying side projects
- •Teams wanting Heroku workflow on a cheap VPS
- •Developers learning deployment and DevOps concepts
Fly.io vs Dokku: Key Differences
Fly.io vs Dokku: Quick Verdict
Fly.io leads by a hair — 8.3/10 vs 8/10. At this margin, the specifics matter more than the overall score.
Choose Fly.io if:
- True multi-region deployment puts applications close to users worldwide for minimal latency
- Firecracker micro-VMs provide near-instant boot times and efficient resource utilization
- Generous free tier includes 3 VMs and shared resources for small projects
- You want the higher-rated option overall (8.3/10 vs 8/10)
- You're watching your budget — Fly.io gets a 8.4/10 for value
Choose Dokku if:
- Extremely lightweight and easy to set up
- Familiar Heroku-style git push workflow
- Active plugin ecosystem for databases and services
- You match the profile: solo developers deploying side projects
- Ease of use matters to you — Dokku scores 7.6/10 here
Decision Summary
Who wins in each scenario? A quick look at how Fly.io and Dokku compare across different buyer needs.
Scores 8.3/10 vs 8.0/10
Scores 8.4/10 on value vs 8.0/10
Both score 7.5/10 for ease of use
Both score 7.9/10 avg on features + support
Free plan available + 8.4/10 value
Both offer free plans
Choose Fly.io if you need...
- ✓True multi-region deployment puts applications close to users worldwide for minimal latency
- ✓Firecracker micro-VMs provide near-instant boot times and efficient resource utilization
- ✓Generous free tier includes 3 VMs and shared resources for small projects
- ✓Lower starting price ($29/mo vs $849/mo)
- !True multi-region deployment puts applications close to users worldwide for minimal latency
- !Firecracker micro-VMs provide near-instant boot times and efficient resource utilization
Choose Dokku if you need...
- ✓Extremely lightweight and easy to set up
- ✓Familiar Heroku-style git push workflow
- ✓Active plugin ecosystem for databases and services
- !Single-server architecture limits scaling
- !Requires command-line comfort for management
Our Take: Fly.io vs Dokku
Fly.io edges ahead with a 8.3/10 vs 8.0/10. The gap is noticeable but not dramatic — both are legitimate options depending on what you prioritize.
Where they differ: Fly.io's biggest strengths are true multi-region deployment puts applications close to users worldwide for minimal latency and firecracker micro-VMs provide near-instant boot times and efficient resource utilization. Dokku, on the other hand, shines with extremely lightweight and easy to set up and familiar Heroku-style git push workflow. These reflect fundamentally different product priorities.
Both offer free plans, so you can test each one with zero risk before committing. We recommend trying both for a week with real data.
Fly.io vs Dokku Score Comparison
| Category | Fly.io | Dokku |
|---|---|---|
🏆Overall Score | 8.3▲ | 8.0 |
💫Ease of Use | 7.5 | ▲7.6 |
⚙Features | 8.7▲ | 7.9 |
💰Value for Money | 8.4▲ | 8.0 |
💬Customer Support | 7.2 | ▲7.9 |
Why These Scores? Our Reasoning
- +True multi-region deployment puts applications close to users worldwide for minimal latency
- +Firecracker micro-VMs provide near-instant boot times and efficient resource utilization
- +Generous free tier includes 3 VMs and shared resources for small projects
- -True multi-region deployment puts applications close to users worldwide for minimal latency
- -Firecracker micro-VMs provide near-instant boot times and efficient resource utilization
- +Extremely lightweight and easy to set up
- +Familiar Heroku-style git push workflow
- +Active plugin ecosystem for databases and services
- -Single-server architecture limits scaling
- -Requires command-line comfort for management
Fly.io vs Dokku Pros & Cons
+Strengths
- ✓True multi-region deployment puts applications close to users worldwide for minimal latency
- ✓Firecracker micro-VMs provide near-instant boot times and efficient resource utilization
- ✓Generous free tier includes 3 VMs and shared resources for small projects
-Weaknesses
- ✗True multi-region deployment puts applications close to users worldwide for minimal latency
- ✗Firecracker micro-VMs provide near-instant boot times and efficient resource utilization
- ✗Generous free tier includes 3 VMs and shared resources for small projects
+Strengths
- ✓Extremely lightweight and easy to set up
- ✓Familiar Heroku-style git push workflow
- ✓Active plugin ecosystem for databases and services
- ✓Completely free and open-source
-Weaknesses
- ✗Single-server architecture limits scaling
- ✗Requires command-line comfort for management
- ✗No built-in web dashboard
- ✗Documentation can be sparse for edge cases
Who Should Use Fly.io vs Dokku?
Fly.io is ideal for
- •Fly.io is best for developers building latency-sensitive applications that benefit from multi-region edge deployment. It's the top choice for real-time apps
- •global SaaS products
- •and Elixir/Phoenix applications that need to run close to users worldwide
Dokku is ideal for
- •Solo developers deploying side projects
- •Teams wanting Heroku workflow on a cheap VPS
- •Developers learning deployment and DevOps concepts
When NOT to Choose Fly.io or Dokku
Knowing when a tool is the wrong fit is just as important as knowing its strengths
Skip Fly.io if...
- ✗True multi-region deployment puts applications close to users worldwide for minimal latency
- ✗Firecracker micro-VMs provide near-instant boot times and efficient resource utilization
- ✗Generous free tier includes 3 VMs and shared resources for small projects
Skip Dokku if...
- ✗Single-server architecture limits scaling
- ✗Requires command-line comfort for management
- ✗No built-in web dashboard
- ✗Documentation can be sparse for edge cases
Fly.io vs Dokku Decision Framework
Choose based on what matters most to you
Fly.io vs Dokku Pricing
| Pricing Feature | Fly.io | Dokku |
|---|---|---|
| Free Plan | ✓ Yes | ✓ Yes |
| Starting Price | $29/mo | $849/mo |
| Free Trial | Not available | Not available |
| Number of Plans | 4 | 2 |
| Value Rating | 8.4/10 | 8.0/10 |
Fly.io Plans
- ✓3 shared VMs
- ✓256MB RAM each
- ✓3GB persistent volumes
- ✓160GB bandwidth
- ✓$29 usage credits
- ✓Dedicated CPUs
- ✓Extended support
- ✓Email support
- ✓$299 usage credits
- ✓Priority support
- ✓SLA
- ✓SOC 2 compliance
- ✓Custom contracts
- ✓Dedicated support
- ✓Custom SLA
- ✓Volume discounts
Dokku Plans
- ✓Free and open source
- ✓MIT license
- ✓Docker-based PaaS
- ✓One-time license
- ✓UI management
- ✓Environment variables UI
What You Get: Plan Feature Comparison
Comparing Fly.io's Launch ($29/mo) vs Dokku's Self-Hosted (Free)
| Feature | Fly.io | Dokku |
|---|---|---|
| $29 usage credits | ✓ | ✗ |
| Dedicated CPUs | ✓ | ✗ |
| Extended support | ✓ | ✗ |
| Email support | ✓ | ✗ |
| Free and open source | ✗ | ✓ |
| MIT license | ✗ | ✓ |
| Docker-based PaaS | ✗ | ✓ |
Which Should You Choose?
Quick Buyer's Guide
Based on our analysis, here's who each tool is best suited for
- ✓Fly.io is best for developers building latency-sensitive applications that benefit from multi-region edge deployment. It's the top choice for real-time apps
- ✓global SaaS products
- ✓Users who need true multi-region deployment puts applications close to users worldwide for minimal latency
- ✓Teams with tighter budgets ($29/mo vs $849/mo)
- ✓Solo developers deploying side projects
- ✓Teams wanting Heroku workflow on a cheap VPS
- ✓Users who need extremely lightweight and easy to set up
Fly.io vs Dokku: The Bottom Line
Fly.io wins this comparison, but the right pick depends on your priorities.
## Our Verdict Fly.io leads by a hair — 8.3/10 vs 8/10. At this margin, the specifics matter more than the overall score. ### Choose Fly.io if: - True multi-region deployment puts applications close to users worldwide for minimal latency - Firecracker micro-VMs provide near-instant boot times and efficient resource utilization - Generous free tier includes 3 VMs and shared resources for small projects - You want the higher-rated option overall (8.3/10 vs 8/10) - You're watching your budget — Fly.io gets a 8.4/10 for value ### Choose Dokku if: - Extremely lightweight and easy to set up - Familiar Heroku-style git push workflow - Active plugin ecosystem for databases and services - You match the profile: solo developers deploying side projects - Ease of use matters to you — Dokku scores 7.6/10 here Dokku at 8.0/10 is still competitive and may be the better fit depending on your specific requirements and budget.