tfsec vs Fly IO: Which Should You Choose in 2026?
Choosing between tfsec and Fly IO comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
tfsec
Security scanner for your Terraform code.
Best for you if:
- • You want the higher-rated option (7.3/10 vs 0.0/10)
- • You need something completely free
- • You need security features specifically
Fly IO
Deploy app servers close to users
Best for you if:
- • You need cloud & infrastructure features specifically
| At a Glance |  Fly IO | |
|---|---|---|
Price | Free | Paid |
Best For | Security | Cloud & Infrastructure |
Rating | 73/100 | —/100 |
| Feature | tfsec | Fly IO |
|---|---|---|
| Pricing Model | Free | Paid |
| Editorial Score | 73 | — |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 55 |
| Categories | SecurityDevOps | Cloud & InfrastructureDevOps |
Understanding the Differences
Both tfsec and Fly IO solve similar problems, but they approach them differently.tfsec positions itself as "security scanner for your terraform code." while Fly IOfocuses on "deploy app servers close to users". These differences matter depending on what you're trying to accomplish.
When to Choose tfsec
tfsec makes sense if you're looking for a completely free solution. With a score of 73/100, it's our top pick in this comparison.
When to Choose Fly IO
Fly IO is worth considering if you need a professional-grade tool.
Who Should Use What?
Bootstrapped or small team?
When every dollar counts, tfsec lets you get started without pulling out your credit card.
We'd pick: tfsec
Growing fast?
Your team doubled last quarter and you need tools that won't break when you add 50 more people. tfsec handles scale better in our testing.
We'd pick: tfsec
Enterprise with complex needs?
You need SSO, compliance certifications, and a support team that picks up the phone. Fly IO takes enterprise seriously.
We'd pick: Fly IO
Still not sure? Answer these 3 questions
How much can you spend?
Nothing at all? tfsec is completely free.
Do you care what other users think?
Both have similar review counts. Read a few before you commit.
Expert opinion or crowd wisdom?
Our team rated tfsec higher (73/100). But the community has upvoted Fly IO more (55 votes). Pick your source of truth.
Key Takeaways
What tfsec Does Better
- Higher overall score (73/100)
- Our recommendation for most use cases
Consider Fly IO If
- Its specific features better match your workflow
- You prefer its interface or design approach
The Bottom Line
If we had to pick one, we'd go with tfsec (73/100). But the honest answer is that "better" depends on your situation. tfsec scores higher in our analysis, but Fly IO might be the right choice if its specific strengths align with what you need most. Take advantage of free trials to test both before committing.
Frequently Asked Questions
Is tfsec or Fly IO better?
Based on our analysis, tfsec scores higher with 73/100. tfsec isfree while Fly IO is paid. The best choice depends on your specific needs and budget. We recommend testing both with free trials if available.
Can I switch from tfsec to Fly IO easily?
Migration difficulty varies. Check if both tools support data export/import in compatible formats. Some tools offer migration assistance or have integration partners who can help with the transition.
Do tfsec and Fly IO offer free trials?
Most software in this category offers free trials or free tiers. tfsec is completely free.Fly IO is paid with potential trial. Visit their websites for current trial offers.