Updated September 28, 2026 · DeployCue Editorial Team

Firebase vs Fly.io

Compare Firebase and Fly.io using recorded catalog facts and pricing.

Where Firebase and Fly.io differ

Firebase vs Fly.io
FactFirebaseFly.io
Price per GB per month$0.020Lower$0.15
Egress price per GB$0.12$0.020 to $0.12Lower
Free egress100 GB/month data transfer free (North America to each Google Cloud data transfer destination, Australia and China excluded)All inbound data transfer, and data transfer between apps or Machines in the same region
Regions46Higher18
Storage typesObjectBlock, ObjectCovers more
Minimum storage period30 to 365 daysNot confirmed
Free egress (GB)100Not confirmed

Same on both: S3-compatible (Yes).

Key differences

  • Price per GB per month is lower at Firebase: $0.020 vs $0.15.
  • Egress price per GB is lower at Fly.io: $0.020 to $0.12 vs $0.12.
  • Regions is higher at Firebase: 46 vs 18.
  • Support channels: only Fly.io offers Email.
  • Founded is lower at Firebase: 1998 vs 2017.
  • Storage types: only Fly.io offers Block.

Score breakdown

Firebase vs Fly.io
AreaFirebaseFly.io
Cost9.109.60Higher
Offer8.709.10Higher
Trust9.90Higher9.00

Area by area

Firebase

  • Cost9.1
  • Offer8.7
  • Trust9.9

Fly.io

  • Cost9.6
  • Offer9.1
  • Trust9.0
  • Fly.io leads on cost by 0.5 points (9.6 vs 9.1).
  • Fly.io leads on offer by 0.4 points (9.1 vs 8.7).
  • Firebase leads on trust by 0.9 points (9.9 vs 9.0).

The bill, worked out

1 TB stored and 500 GB downloaded in a month

Firebase

$80

1,000 × $0.02 + 500 × $0.12

Fly.io

$160 to $210

1,000 × $0.15 + 500 × $0.02 to $0.12

Firebase costs $80 less.

Worked out from the stated prices and rates; your own total depends on how you use it.

Every fact side by side

Firebase vs Fly.io
FactFirebaseFly.io
Legal entityGoogle LLCFly.io, Inc.
HeadquartersUnited StatesUnited States
Founded1998Lower2017
Support channelsHelp centre, CommunityEmail, Help centre, CommunityCovers more

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