Fly.io vs Supabase
- ✦ Edge Deployment
- ✦ Docker Containers
- ✦ Fly Machines
- ✦ PostgreSQL Database
- ✦ Authentication
- ✦ File Storage
Real-World Scenarios: When to Choose Which
The question that matters: “In what situation will I regret choosing A over B after 3 months?”
Fly Machines start in under 3 seconds, enabling zero-downtime rolling deploys without load balancer warm-up delays or deployment scheduling windows.
Supabase RLS policies enforce tenant data isolation at the database level, serving a single Postgres table to all customers without application-layer filtering code.
Anycast Networking directs players to the nearest Global Region, cutting latency from 120ms to 30ms. Auto-scaling Fly Machines absorb sudden player count spikes seamlessly.
Edge Deployment runs identical app instances across 30+ regions from one Docker image. Private Networking isolates databases per region - no separate cloud accounts required.
Supabase Realtime broadcasts Postgres table changes via WebSocket to subscribed clients, adding live collaboration or notification features without a separate message broker.
Supabase Auth integrates with Postgres RLS through the built-in auth.uid() function, wiring user identity to database row permissions without a separate identity service.
Pricing Intelligence
Fly.io Plans
Free tier available
You get 3 shared VMs, 3GB storage, 160GB bandwidth. What's locked behind the paywall: dedicated support, compliance. If those matter, Launch at $29/mo is the next step. Good enough for solo use and evaluation.
$29/mo gets you Dedicated support, Compliance. The sweet spot for professionals who've maxed out the free plan and need Dedicated support, Compliance.
Custom pricing for Volume discounts, SLA. Always negotiate - ask for pilot pricing if testing with <50 seats, and push for annual discount commitments. Compare enterprise quotes against Kinsta's equivalent tier.
Feature Matrix
8 differences found across 18 standardized features
- •Edge Deployment
- •Docker Containers
- •Fly Machines
- •Anycast Networking
- •Persistent Storage
- •Private Networking
- •Auto-scaling
- •Global Regions
- •PostgreSQL
- •Redis
- •CLI Tools
- •API
- •Custom Domains
- •SSL
- •Monitoring
- •PostgreSQL Database
- •Authentication
- •File Storage
- •Edge Functions
- •Realtime Subscriptions
- •Row Level Security
- •REST API Auto-generated
- •GraphQL
- •Database Backups
- •Connection Pooling
- •Vector/pgvector
- •Full Text Search
- •Dashboard
- •CLI
- •Self-Hosting
Pros & Cons Face-Off
Evaluative strengths and weaknesses: not feature lists
- +Free plan available
- +Competitive pricing from $29/mo
- +Multiple pricing tiers (3 plans) to match different needs
- +Full PostgreSQL flexibility vs Firebase's NoSQL
- +Excellent developer experience
- +Generous free tier
- +Open source and self-hostable
- −I notice that the schema visualizer can be improved.
- −One area for the solution improvement is the inclusion of more sample code in various programming languages, particularly PHP.
- −I think there are still many Postgres features that can be developed further by the Supabase team.
At a Glance
Frequently Asked Questions
Related Comparisons
Sources & Data Trail · Fly.io
- 1.Official Pricing Page·Source of verified tiers(Checked: 2026-05-15)
- 2.Official Website·Official vendor website
- 3.G2·G2 verified reviews · 4.3/5
Sources & Data Trail · Supabase
- 1.Official Pricing Page·Source of verified tiers(Checked: 2026-05-14)
- 2.Official Website·Official vendor website
- 3.G2·G2 verified reviews · 4.7/5
- 4.TrustRadius·TrustRadius verified reviews
- 5.PeerSpot·PeerSpot enterprise peer reviews