Fly.io vs Teploy: Comparing Global Deployment Strategies
Fly.io makes global 'deploy near your user' easy. But do you actually need multi-region? Teploy offers a simpler, cheaper single-region alternative.
Fly.io is brilliant. They "turn containers into micro-VMs" and let you run them in 30+ regions. If you truly need an application that runs in Sydney, London, and New York simultaneously, Fly.io is the best tool for the job.
But Global Data is hard. If your app runs in 3 regions, where is your database?
- If DB is in New York, the Sydney user has a fast "Time to First Byte" but a slow login (waiting for roundtrip to NY DB).
The "Good Enough" Edge
For most applications, a single powerful server in a central location (e.g., US East) coupled with a global CDN (Cloudflare) is the optimal architecture.
- Static Assets: Cached at the edge (Cloudflare). Instant for everyone.
- Dynamic Content: Goes to your Teploy VPS.
Since the speed of light is fast, a user in London hitting a US East server is ~70ms latency. This is imperceptible for most web apps.
Pricing Complexity
Fly.io pricing involves:
- VM usage (per second)
- Persistent Volume usage
- Outbound Data Transfer
- Anycast IP addresses
It can be hard to estimate.
Teploy is simple:
- Rent a server from Hetzner in Virginia or Frankfurt.
- Pay the fixed price ($5/mo).
- Done.
Reliability
Fly.io moves fast and breaks things. Their status page often shows "API instability" or "Deployment delays". They are solving a very hard engineering problem (distributed global VMs).
Teploy relies on standard VPS providers (DigitalOcean, Vultr) who have been running simple VMs stably for 15 years. The underlying "tech" is boringly reliable.
Conclusion
If you are building a realtime game or a high-frequency trading app where <20ms latency globally is critical, use Fly.io.
If you are building a SaaS, E-commerce store, or internal tool, the complexity of distributed databases isn't worth it. A strong single-region VPS via Teploy is rock solid, cheaper, and easier to reason about.