What is Fly.io?
Cloud platform providing hardware-isolated virtual machines and managed infrastructure for deploying applications and running agents at scale with zero-downtime deploys, autoscaling, and global reach.
Fly.io pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Usage-based pricing (pay-as-you-go) with optional prepayment for 40% discount. Serious Support from $29/month. HIPAA compliance at $99/month. Enterprise available via contact.
Pay-as-You-Go
Usage-based pricing for Micro VMs and persistent storage
- Micro VMs
- Persistent storage
- Private networking
- Unlimited users per organization
Serious Support
Access to dedicated team of engineers
- Dedicated support team
HIPAA Compliance
Compliance package for HIPAA-regulated workloads
- HIPAA-compliant workloads
- BAAs
- SOC2 certification
Machine Reservation
Prepay for infrastructure and receive 40% discount
- 40% discount vs pay-as-you-go
Enterprise
Contact salesCustom solutions for larger workloads with SLA requirements
- Custom resource configurations
- SLA requirements
- Emergency support
What Fly.io does
The capabilities that matter for paas & hosting, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Git-push auto-deploy
- ✗
- Deploy arbitrary container image
- ✓
- Per-PR preview environments
- ✗
- Build system
- -
- Runtime / language breadth
- Elixir, Rails, Laravel, Django, JavaScript, Rust, Python
- Autoscaling
- Scale-to-zero
- Geographic reach
- Multi-region
- Hosting
- Cloud only
- Bundled managed data services
- ✓
- Built-in global CDN / edge
- ✓
- Custom domains + automatic TLS
- ✓
- Env vars & secrets management
- ✓
- Instant rollbacks
- ✓
- CLI + deploy API
- ✓
Platform & deployment
Independently observed- CLI
- Web
- Cloud / SaaS
Integrations (5)
Independently observed- Sentry
- Supabase
- Upstash
- LiteFS
- Tigris
Fly.io alternatives
Other paas & hosting we track, ranked by the same independent score.
- VercelAgentic Infrastructure to ship apps and agentslow · 49%
- NetlifyPush your ideas to the webmedium · 64%
- KoyebHigh-performance Infrastructure for APIs, Inference, and Databasesmedium · 60%
- RailwayThe all-in-one intelligent cloud providermedium · 62%
- CoolifySelf-hosting with superpowerslow · 21%
- DokkuThe smallest PaaS implementation you've ever seenlow · 21%
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Fly.io, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Security Posture | 75 | 22.00 | 1650.0 | ✓ |
| Reliability | 50 | 30.00 | 1500.0 | ✓ |
| Pricing Transparency | 100 | 12.00 | 1200.0 | ✓ |
| Capabilities | 87 | 12.00 | 1040.6 | ✓ |
| Price Level | 50 | 8.00 | 400.0 | ✓ |
| Integrations | 22 | 16.00 | 358.1 | ✓ |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | {"hosting":"cloud","regions":"multi","edge_cdn":true,"runtimes":"Elixir, Rails, Laravel, Django, JavaScript, Rust, Python","rollbacks":true,"autoscaling":"scale_to_zero","cli_and_api":true,"env_secrets":true,"git_push_deploy":false,"preview_deploys":false,"container_deploy":true,"managed_databases":true,"custom_domains_tls":true} | mediumsource · 2026-08-01 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 5 | mediumsource · 2026-08-01 · 60% |
Pricing
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-01 · 60% |