Fly.io vs Kuberns
Comparison facts
Platform
Hosting model
Managed
Supported
Managed
Supported
Open source / license
—
Open source / license
—
Services
Compute
Supported
Compute
Supported
GPU Compute
Supported
GPU Compute
Not supported
Managed Databases
Supported
Managed Databases
Supported
Object Storage
Supported
Object Storage
Not supported
Workloads
APIs
Supported
APIs
Supported
Backend Services
Supported
Backend Services
Supported
Background Workers
Supported
Background Workers
Supported
Web Applications
Supported
Web Applications
Supported
Capabilities
Compute Autoscaling
Supported
Compute Autoscaling
Not recorded
Deployment Rollbacks
Not recorded
Deployment Rollbacks
Supported
Preview Environments
Not recorded
Preview Environments
Supported
Scale to Zero
Supported
Scale to Zero
Not recorded
Zero-Downtime Application Deployments
Supported
Zero-Downtime Application Deployments
Not recorded
Development & Execution
Deployment & packaging
Docker / OCI
Supported
Docker / OCI
Supported
Kubernetes
Supported
Kubernetes
Not supported
Serverless (Managed Runtime)
Not supported
Serverless (Managed Runtime)
Supported
Runtimes
.NET Runtime
Supported
.NET Runtime
Not recorded
Custom Runtime
Supported
Custom Runtime
Supported
Deno
Supported
Deno
Not recorded
JVM
Supported
JVM
Supported
Node.js
Supported
Node.js
Supported
Languages
C#
Supported
C#
Not supported
Crystal
Supported
Crystal
Not supported
Elixir
Supported
Elixir
Not supported
Go
Supported
Go
Supported
Java
Supported
Java
Supported
JavaScript
Supported
JavaScript
Supported
PHP
Supported
PHP
Not supported
Python
Supported
Python
Supported
Ruby
Supported
Ruby
Not supported
Rust
Supported
Rust
Not supported
TypeScript
Supported
TypeScript
Supported
Frameworks
Django
Supported
Django
Supported
Express.js
Supported
Express.js
Supported
Fastify
Supported
Fastify
Supported
Laravel
Supported
Laravel
Not supported
Next.js
Supported
Next.js
Supported
Ruby on Rails
Supported
Ruby on Rails
Not supported
Spring Boot
Supported
Spring Boot
Supported
SvelteKit
Supported
SvelteKit
Not supported
Pricing
Free entry / commitment
Started Machines are billed per second for provisioned compute and memory
Usage is billed without a long-term commitment
Infrastructure & Availability
Infrastructure provider
- Own Network
- Amazon Web Services
Supported providers
- Own Network
- Amazon Web Services
Placement control
- Regional
- Regional
Security & Compliance
Access & identity
Access Control
Organization roles and scoped tokens
Granular project, service, and action roles
Single Sign-On
Required Google or GitHub organization sign-in
Unknown
Audit Logging
Unknown
Deployment, configuration, and user actions
Encryption & secrets
Secrets Management
Encrypted application secrets
End-to-end encrypted secret storage
Encryption at Rest
LUKS-encrypted volumes and managed database storage
Unknown
Encryption in Transit
Unknown
Automatic TLS for service endpoints
Network isolation & protection
Network Isolation
Firecracker microVMs with no shared guest kernel
Isolated service runtimes and ephemeral builds
Private Networking
Per-organization 6PN WireGuard network
Unknown
Assurances & programs
HIPAA
Eligible use
Unknown
SOC Reports
SOC 2 Type II
Unknown