Side-by-side

DimensionFly.ioBubble
Categoryengineeringengineering
Entry pricing (USD)$5/mo$32/mo
Entry pricing (INR)
Regions coveredIN · US · GLOBALIN · US · GLOBAL

Which one should you pick?

Pick Fly.io if…

  • Your customer base is concentrated in IN / US / GLOBAL.
  • Run full apps in 35+ regions worldwide via Firecracker microVMs. Best for latency-sensitive global products. Pay per VM-second, free tier removed in 2024.
  • Entry pricing matters and you don't need a feature Bubble bundles at its tier.

Pick Bubble if…

  • Your customer base is concentrated in IN / US / GLOBAL.
  • No-code app builder — build full SaaS applications with database, auth, workflows, no JavaScript. Used by indie founders shipping MVPs in days.

FAQ

Is Fly.io or Bubble cheaper?

Fly.io starts at $5/mo, Bubble starts at $32/mo — Fly.io wins on entry pricing. But entry pricing is rarely your real cost; check our pricing-curve modelling on each tool's review page for ARR projections.

When should I pick Fly.io over Bubble?

Both compete in the same engineering space. Pick Fly.io if your stack is closer to its native integrations, your team already uses sister products from the same vendor, or its regional coverage matches your customer base. Pick Bubble for the inverse.

Can I migrate from Fly.io to Bubble later?

Most modern SaaS supports CSV/JSON export for the core data model. The migration cost is integration work — every Zapier workflow, every webhook URL, every API token has to be re-wired. Budget 2-4 weeks of engineering time for a non-trivial production migration.

Are there alternatives to both Fly.io and Bubble?

Yes — browse the full engineering category at /tools/category/engineering for every tool we cover.

More in engineering

Browse every tool we cover in this category, ranked + compared.

See all engineering tools