Same global edge model. .NET-native. No fly.toml.
Fly.io's pitch is run-your-app-everywhere-at-the-edge. Velixir's pitch is similar, but we're .NET-first and you don't write a fly.toml or wrestle with Firecracker quirks.
Why teams switch from Fly.io to velixir
The specific reasons, not generic ones.
- .NET-native: no fly.toml, no Dockerfile, no Firecracker tuning.
- Cleaner billing: hourly EUR for everything; Fly's free-tier-into-paid migration in 2024 caught a lot of small projects off-guard.
- First-party managed Postgres + Valkey. Fly Postgres is a managed Postgres app, not a managed service; you're operating it.
- Personal support from a .NET founder vs Fly's community-first model.
Side-by-side
Pricing checked May 2026. Specs reflect the closest equivalent plan in each direction.
| Dimension | velixir | Fly.io |
|---|---|---|
|
Smallest always-on tier
Fly is cheaper at the floor - and you operate everything yourself.
|
€6.95/mo (Spark - always-on) | ~$1.94/mo (shared-cpu-1x@256MB) |
|
1 vCPU / 2 GB equivalent
Equivalent specs, slightly lower price + much higher service level.
|
€24.95/mo (Elixir) | ~$31/mo (performance-1x-2GB) |
|
.NET build path
Fly is OCI-image-only; you bring the Dockerfile.
|
First-party - no Dockerfile | Dockerfile required |
|
Managed Postgres
Big difference: ours has backups, PITR, point-and-click HA. Fly's is your problem.
|
Built-in managed service (€4.95+/mo) | Fly Postgres = self-operated Postgres app |
|
Managed Redis / Valkey
Fly Redis is a partner; Velixir's is ours.
|
Valkey, first-party (€2.45+/mo) | Upstash partnership |
|
Sign-up trial
Velixir's trial is real money; Fly removed their free hobby plan.
|
First month on us, up to €14.99 | Pay-as-you-go from day one |
|
Operating model
Most teams don't want to operate Firecracker.
|
Managed (we run the cluster) | More self-serve (you operate apps) |
|
Roll back a bad release
Both fast; ours is the default UI affordance.
|
One click, instant | `fly releases rollback` |
|
Pricing model
Velixir is EUR-first; Fly is USD.
|
Hourly EUR | Per-second USD |
Same workload, both sides
A small .NET app with Postgres + Redis on Fly.
Fly: performance-1x-2GB (~$31/mo) + Postgres dev cluster ($15/mo) + Upstash Redis ($10/mo) ≈ $56/mo + ops time.
Velixir: Elixir app (€24.95) + Postgres Hobby (€4.95) + Valkey Hobby (€2.45) = €32.35/mo, fully managed.
~40% lower bill, and the data services are managed for you.
Like Fly's edge model, hate fly.toml? Try Velixir.
Push your code via Git or CLI. velixir builds, publishes, and deploys it to the region you pick - EU, US, or Asia-Pacific - in under two minutes. No Docker, no YAML soup - and your first month's on us, up to €14.99.
No credit card to sign up. Add a payment method only when you're ready to deploy.