Fly.io vs Trigger.dev
Run your app close to users, globally
vs. Open-source background jobs with no timeouts and full observability
Pricing tiers
Fly.io
Pay-as-you-go
No monthly fee. Machines billed per second. Free allocations: ~3 small shared machines + 3 GB volumes.
$0 base (usage-based)
Shared CPU 1x — 256 MB
Entry VM. 1 shared vCPU, 256 MB RAM. ~$2.02/month continuously on.
$2/mo
Performance 1x — 2 GB
Dedicated 1 vCPU, 2 GB RAM.
$32/mo
Reservation — Shared (1 yr)
$36/year for $5/mo credit (40% savings).
$36/mo
Shared CPU 8x — 16 GB
8 shared vCPU, 16 GB RAM.
$89/mo
Performance 16x — 128 GB
Dedicated 16 vCPU, 128 GB RAM.
$1014/mo
Enterprise
Custom. Dedicated capacity, SLA.
Custom
Trigger.dev
Free
$0. 5K runs/mo. 1 concurrent run. 1 team member. 7-day log retention.
Free
Self-Host (OSS)
Free. Apache-2.0 license. Docker Compose + Postgres + Redis.
$0 base (usage-based)
Hobby
$10/mo. 50K runs/mo. 25 concurrent. Unlimited queue time.
$10/mo
Pro
$50/mo (starts at — usage scales). 250K runs/mo baseline. 100 concurrent. Priority.
$50/mo
Enterprise
Custom. HIPAA, SSO, dedicated clusters, on-prem.
Custom
Free-tier quotas head-to-head
Comparing pay-as-you-go on Fly.io vs free on Trigger.dev.
| Metric | Fly.io | Trigger.dev |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
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.
Trigger.dev · 13 features
- Batch Trigger — Trigger many runs at once with limits.
- Environment Variables — Manage secrets in dashboard.
- Idempotency Keys — Prevent duplicate runs.
- Machine Sizing — Pick CPU/RAM per task.
- Queues + Concurrency — Named queues for controlled throughput.
- Realtime + React Hooks — Subscribe to run progress from client.
- Retries — Exponential + custom strategies.
- Schedules — Cron-triggered runs.
- Self-Hosting — Run locally or on your infra.
- Subtasks + triggerAndWait — Compose tasks by triggering children.
- Task Metadata — Attach arbitrary metadata to runs.
- Tasks — Define long-running TS tasks.
- wait.for / wait.until — Durable waits — minutes, hours, days.
Developer interfaces
| Kind | Fly.io | Trigger.dev |
|---|---|---|
| CLI | flyctl CLI | trigger.dev CLI |
| SDK | — | @trigger.dev/react-hooks, @trigger.dev/sdk |
| REST | Machines API | Trigger.dev REST API |
| GRAPHQL | Fly GraphQL API | — |
| OTHER | Fly Postgres (wire) | Trigger.dev Dashboard, Trigger.dev Webhooks |
Staxly is an independent catalog of developer platforms. Outbound links to Fly.io and Trigger.dev are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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