Fly.io vs Medusa

Fly.io

Medusa

Fly.io · 14 features

• Auto Stop/Start — Machines auto-stop when idle, start on request (like scale-to-zero).
• Certs — Let's Encrypt + wildcard certs managed.
• Fly GPU — A100/L40S/A10 on-demand GPU machines.
• Fly Kubernetes (FKS) — Managed Kubernetes on Fly machines.
• Fly Machines — Firecracker microVMs. Start in <1s. Run any Docker image.
• Fly Postgres — Managed Postgres via Supabase partnership (2024). Also legacy self-run Postgres …
• fly-replay headers — Route request to another region at app level.
• Fly Volumes — Persistent SSD attached to a Machine. Encrypted at rest.
• Global Anycast — Single IP routes to the closest region automatically.
• LiteFS — Distributed SQLite with primary/replica across regions.
• Private Networks — 6PN WireGuard mesh. Connect machines across regions privately.
• Secrets — Encrypted env vars propagated to all regions.
• Tigris (partner) — S3-compatible storage for Fly apps. By partner.
• Upstash Redis (partner) — Managed Redis via Upstash.

Medusa · 16 features

• Admin Dashboard — React-based admin UI.
• Auth — Customer + admin auth with JWT.
• Cart — Multi-region carts with tax/pricing logic.
• Checkout — Multi-step checkout flow.
• Customers + Groups — Customer records + B2B groups.
• Dynamic Pricing — Price lists, rules, customer-specific.
• Event Bus — Async events via Redis / RabbitMQ.
• File Service — Pluggable storage (S3, local).
• Gift Cards — Native gift-card support.
• Inventory + Multi-warehouse — Stock tracking across locations.
• Next.js Starter — Production-ready Next.js storefront.
• Orders + Fulfillment — Full order lifecycle (edits, returns, exchanges).
• Products + Variants — Products with options, variants, images.
• Promotions + Discounts — Rule-based promos, campaigns.
• Tax Providers — Pluggable tax calculation.
• Workflows Engine — Durable saga-style business logic.