Fly.io vs Mailtrap: what each really costs

Team size

Billing

Fly.io

No plan for this billing option

No paid plan to compare for this billing option.

Mailtrap

No plan for this billing option

No paid plan to compare for this billing option.

10 peopleFly.ioMailtrap
Entry paid planNo plan for this billing optionNo plan for this billing option
Vendor price
Monthly cost
Annual cost
Per user / year
Billing commitmentNot recordedNot recorded
Minimum seatsNone statedNone stated
Free planNo free plan listedYes
Free trialNot statedNot stated

Calculated by SpecEntry from official vendor prices. Taxes and optional add-ons are not included. Open each product page for every plan and the official source.

Fly.io vs Mailtrap: features

Key features as each vendor lists them. A feature missing from a list does not mean the product lacks it.

Fly.io

  • Fly MachinesHardware-virtualized containers that launch instantly and run on demand.
  • Isolated sandboxesHardware-isolated sandboxes for running untrusted or AI-generated code.
  • Sprites environmentsEach Sprite is a self-contained environment ready in under a second.
  • Checkpoint and restoreCheckpoint an entire environment and restore it after breaking changes.
  • NVMe and object storageLocal NVMe for low latency plus global durable object storage.
  • Agent-ready CLIs and MCPCLIs and MCP servers designed to be driven by AI agents.
  • KVM hardware isolationApps run KVM hardware-isolated on Fly.io's own hardware.

Source:fly.io ·

Mailtrap

  • Deliverability dashboardsDashboards with deliverability metrics per mailbox provider.
  • Email sendingSends transactional and promotional emails.
  • Email sandboxLets developers and QA safely test staging emails.
  • Client previewsPreview emails across 100+ clients and devices.
  • Marketing campaignsCreate, schedule and send email campaigns.
  • Cursor integrationSend emails and manage templates directly from Cursor.
  • Tool integrationsConnects Mailtrap to the tools you already use.

Source:mailtrap.io ·

Fly.io vs Mailtrap pricing questions

  1. How much do Fly.io and Mailtrap cost?

    Fly.io paid plans start at $2.19 per month ($0.0030/hr), billed per second (Machine shared-cpu-1x 256MB). Mailtrap paid plans start at $15 per month, 10,000 emails (Basic).

  2. Is Fly.io or Mailtrap cheaper for 5 users?

    Mailtrap is cheaper for 5 users: $180 per year on Basic, against $348 per year for Fly.io on Standard support. That is $168 less per year, before tax.

  3. Is Fly.io or Mailtrap cheaper for 10 users?

    Mailtrap is cheaper for 10 users: $180 per year on Basic, against $348 per year for Fly.io on Standard support. That is $168 less per year, before tax.

  4. Is Fly.io or Mailtrap cheaper for 25 users?

    Mailtrap is cheaper for 25 users: $180 per year on Basic, against $348 per year for Fly.io on Standard support. That is $168 less per year, before tax.

  5. Do Fly.io and Mailtrap have a free plan?

    Mailtrap lists a free plan; Fly.io does not list one on its official pricing.