Fly.io and Northflank both target developers deploying containerized apps, but Fly.io is a single-network platform built around Fly Machines (VMs deployed…
Best for Fly.io: Teams that want to deploy VMs directly in regions close to their users with straightforward per-Machine, per-GB usage billing, and don't need multi-cloud or GPU support.
Best for Northflank: Teams that need to deploy across AWS, GCP, Azure, or other clouds (including bring-your-own-cloud), want a free Sandbox tier to start, or need GPU-backed AI inference and formal SOC 2/HIPAA certification.
At a Glance
Fly.io
Northflank
Primary category
Hosting
Hosting
Rating
Not documented
Not documented
Pricing model
Usage-based
Freemium
Starting price
Pay-as-you-go from about $2 per month per shared-cpu-1x machine; new accounts get a limited free trial (2 VM hours or 7 days, whichever comes first) before a credit card is required
Free (Developer Sandbox); pay-as-you-go compute beyond that
Free plan
Not documented
Yes
Free trial
Yes
Not documented
Platforms
Web
Not documented
Team collaboration
Not documented
Not documented
AI features
Not documented
Not documented
Public API
Yes
Yes
Key Differences
Free tier availability
Fly.io: Legacy free allowances (shared-cpu VMs, storage) have been discontinued; billing is now pay-as-you-go from the start.
Northflank: Offers a free Sandbox tier with 2 services, 1 database, and 2 cron jobs before any paid plan is needed.
Determines whether a team can prototype or run small workloads at zero cost before committing to a paid plan.
Multi-cloud / bring-your-own-cloud support
Fly.io: Deploys apps as Fly Machines on Fly's own global VM network only.
Northflank: Deploys services, jobs, and databases across AWS, GCP, Azure, Oracle Cloud, CoreWeave, or Civo, including bring-your-own-cloud setups.
Organizations with existing cloud contracts or data-residency requirements need to deploy inside a specific cloud account rather than a vendor's own network.
GPU and AI inference workloads
Fly.io: No GPU or AI inference capability is documented in Fly.io's feature set.
Northflank: Runs GPU-backed workloads and model inference, including open-source models like Llama4 and Deepseek, on NVIDIA L4/A100/H100 instances.
Teams running AI/ML inference need direct access to GPU hardware from their deployment platform.
Compliance certification
Fly.io: Offers a paid HIPAA Compliance Package ($99/month) providing BAAs and SOC2 documentation, but no stated SOC 2 certification.
Northflank: Is SOC 2 Type 2 and HIPAA certified as a platform-level attribute.
Regulated industries often require the platform itself to hold current certifications, not just optional compliance add-ons.
Pricing structure clarity
Fly.io: Single usage-based model billed per Machine hour, stopped-Machine storage, volumes, snapshots, and data transfer.
Northflank: Compute pricing is split into multiple named plan tiers (e.g. nf-compute-10), which Northflank's own facts note can be confusing to compare.
Predictable, easy-to-compare pricing matters for budgeting and procurement.
Feature-by-Feature
Core Platform
Feature
Fly.io
Northflank
Multi-cloud deployment
Unavailable
Available
GPU / AI inference support
Not documented
Available
Managed Postgres
Available
Not documented
Kubernetes
Available
Available
Built-in CI/CD and GitOps
Not documented
Available
Pricing & Plans
Feature
Fly.io
Northflank
Free tier
Unavailable
Available
Entry-level paid pricing
Available
Available
Custom/Enterprise plan
Not documented
Available
Compliance & Support
Feature
Fly.io
Northflank
HIPAA support
Available
Available
SOC 2 certification
Not documented
Available
Paid dedicated support tier
Available
Not documented
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
Fly.io
Shared CPU Machines — From about $2.02/month usage-based, billed per second
Performance CPU Machines — From about $32/month usage-based, billed per second
Persistent Volumes — $0.15/GB per month usage-based, billed monthly
Fly Kubernetes — $75/month per cluster plus compute and storage monthly
Support plans — $29-$2,500+/month monthly
Northflank
Developer Sandbox — $0 Free
Pay-as-you-go — Usage-based Monthly, billed on consumption
Enterprise / BYOC — Custom Custom contract
Pros & Cons
Fly.io
Pros
Genuine multi-region deployment with automatic Anycast routing, rather than a single-region default with manual replication
Fine-grained, container-level control over runtime behavior compared with more abstracted platforms-as-a-service
Fast microVM boot times make it well suited to ephemeral and on-demand workloads such as agent sandboxes
Usage-based pricing means very small or intermittent workloads can run cheaply compared with fixed monthly plans
Cons
The free allowance was removed in October 2024, so new users must attach a credit card almost immediately after a very short trial
Usage-based, per-resource billing across compute, storage, IPs, and bandwidth can make total monthly cost harder to predict than flat-tier competitors
Operating and debugging a distributed, multi-region deployment carries more complexity than single-region platforms like Render
Community reports describe occasional region capacity or networking troubleshooting friction (WireGuard, volume placement) compared with simpler PaaS options
Northflank
Pros
Combines CI/CD, hosting, and databases into a single platform, reducing tool sprawl
Exposes real Kubernetes power without requiring deep Kubernetes expertise
Preview environments simplify testing full-stack changes per pull request
BYOC support gives enterprises control over data residency and cloud spend
GPU support makes it viable for AI/ML workloads, not just web apps
Cons
Usage-based pricing can be harder to predict than flat PaaS pricing
Smaller company size than larger cloud platform vendors
Steeper learning curve than minimal PaaS tools like Render or Railway
Enterprise and BYOC pricing requires a custom sales conversation
Smaller ecosystem of third-party integrations and community plugins than established clouds
Use Cases
Choose Fly.io: Teams that want to deploy VMs directly in regions close to their users with straightforward per-Machine, per-GB usage billing, and don't need multi-cloud or GPU support.
Choose Northflank: Teams that need to deploy across AWS, GCP, Azure, or other clouds (including bring-your-own-cloud), want a free Sandbox tier to start, or need GPU-backed AI inference and formal SOC 2/HIPAA certification.
Need both: An organization already running edge-proximate VMs on Fly.io for latency-sensitive services might separately pilot Northflank for GPU/AI inference workloads or multi-cloud projects it can't run on Fly's own network.
Fly.io
Globally distributed APIs and backends — Teams deploy backend services across multiple Fly.io regions so API requests are served from the data center nearest each user, reducing latency for internationally distributed audiences.
Real-time and low-latency applications — Applications such as multiplayer games, chat, and collaborative tools use Fly.io's Anycast routing and WireGuard backhaul to keep round-trip latency low regardless of user location.
AI agent sandboxes and ephemeral compute — The Fly Machines API and fast Firecracker microVM boot times are used to spin up short-lived, isolated Linux environments for AI coding agents and per-user code execution.
Northflank
Self-service internal developer platform — Platform engineering teams give developers self-service deployment without managing raw Kubernetes clusters themselves.
Automated pull request preview environments — Engineering teams review full-stack changes, including database state, in an isolated environment before merging.
AI and ML workload hosting — Teams run GPU-backed training and inference jobs alongside their standard application infrastructure on one platform.
Frequently Asked Questions
Does Fly.io have a free tier?
No — previous free allowances (e.g. 3 shared-cpu-1x VMs, 3GB storage) have been discontinued, and pricing is now pay-as-you-go.
Does Northflank have a free plan?
Yes, the Sandbox tier is free and includes 2 services, 1 database, and 2 cron jobs.
Can I run GPU workloads on Fly.io or Northflank?
Northflank offers GPU options including NVIDIA L4, A100, and H100 instances billed hourly; Fly.io's documented feature set does not mention GPU support.
What clouds does Northflank support?
AWS, GCP, Azure, Oracle Cloud, CoreWeave, and Civo, plus bring-your-own-cloud deployments.
Does Fly.io offer paid support plans?
Yes, a 'Serious Support' plan starting at $29/month gives access to dedicated engineers.
Is Northflank certified for regulated workloads?
Yes, Northflank is SOC 2 Type 2 and HIPAA certified.