Fly.io vs Retool: Pricing Comparison 2026
Side-by-side pricing comparison of Fly.io and Retool. See all plans, features, and costs at a glance.
Bottom line: Fly.io starts at Custom pricing and Retool starts at $9/mo. Compare all 7 pricing tiers side by side.
Last updated: March 16, 2026
Fly.io vs Retool: Quick Pricing Facts
| Feature | Fly.io | Retool |
|---|---|---|
| Starting Price | Custom pricing | $9/mo |
| Number of Plans | 3 | 4 |
| Free Tier | No | Yes |
| Pricing Model | usage-based | per-seat |
| Annual Discount | N/A | N/A |
Fly.io and Retool are both priced at Custom pricing, making them equally accessible Dev Tools. Together they offer 7 pricing plans with 29 features compared, so the best choice comes down to which features match your needs.
Retool stands out with a free plan for getting started. Fly.io uses usage-based pricing while Retool uses per-seat pricing, which may affect your total cost at scale.
Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your Dev Tools needs.
| Pricing Plans |  Fly.io Try it free |  Retool Try it free |
|---|---|---|
| Tier 1 | Enterprise-Ready Custom pricing | Free $0/monthCheapest Includes
|
| Tier 2 | Compliance Made Easy Custom pricing | Team $9/monthCheapest $1 / year Includes
|
| Tier 3 | Are on the House Custom pricing | Business $46/monthCheapest $4 / year Includes
|
| Tier 4 | — | Enterprise Custom pricing Includes
|
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What Reviewers Say
Fly.io
Retool
Retool offers a free plan, offers 4 tiers vs 3.
Based on pricing data only. Review the full comparison below for your specific needs.
Best value: Retool
Try Retool freeWhich Should You Choose?
Choose Fly.io if:
- •You prioritize Fly.io's user experience and interface over price (both tools are similarly priced)
- •You want Fly.io's approach to incremental feature unlocking across its 3 pricing tiers
- •Fly.io keeps its feature set lean, which means faster onboarding and less complexity
Choose Retool if:
- •You need a free plan with Unlimited web & mobile apps, 500 workflow runs/month—Retool offers no-cost access with no credit card required
- •You need 4 pricing tiers for flexible team sizing—more options mean less overpaying for features you don't need
- •You want more features built-in—Retool offers 29 additional features across its plans
Retool offers a free plan [1], eliminating the cost barrier for evaluation, while Fly.io requires paid subscription from the start. This gives Retool a significant advantage for teams with budget constraints or extended trial periods. Once you outgrow Retool's free tier, upgrading to a paid plan at approximately $9/mo provides substantial additional functionality. Compare this pricing path against Fly.io's tiering starting at Custom pricing to assess total cost of ownership over 12 months. Retool's 4 tiers provide flexibility at different budgets, while Fly.io's 3 tiers structure may force you into higher-cost plans than necessary for your use case. If evaluation cost matters to your decision, Retool is the obvious starting point with zero financial commitment. Use the free tier to validate core functionality before committing to paid plans from either tool.
Frequently Asked Questions: Fly.io vs Retool
How many pricing plans does Fly.io have vs Retool?
Does Fly.io or Retool offer a free plan?
Can I save money by paying annually for Fly.io or Retool?
Does Fly.io or Retool offer custom enterprise pricing?
What pricing models do Fly.io and Retool use?
How do Fly.io and Retool compare for Dev Tools?
Sources
- Fly.io Official Pricing— Vendor pricing page
- Retool Official Pricing— Vendor pricing page
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