Pick Fly.io if
app teams who will run a first always-on shared-cpu-1x 256 MB Machine at $2.19 / month (iad) plus a 1 GB volume at $0.15, then add a second volume in the same region because Fly does not replicate disks for you.
Read the Fly.io pageFly.io vs ngrok
Our take
Pick Fly.io if app teams who will run a first always-on shared-cpu-1x 256 MB Machine at $2.19 / month (iad) plus a 1 GB volume at $0.15, then add a second volume in the same region because Fly does not replicate disks for you. Pick ngrok if developers who will burn the Free $5 one-time credit at $0 while they open a first Traffic Inspector, then Hobbyist at $10/month of included usage when the credit is gone — not
Best for
Fly.io A Machine plus persistent disk you bill by the second
ngrok HTTP you inspect at a public $
Free plan
Fly.io $0 · standard $29 / month. Premium $199 / month. Enterprise from $2,500 / month. HIPAA package $99 / month
ngrok $0 · $5 of one-time included usage. No overflow. Up to 3 online endpoints. Up to 1 GB data transfer. Up to 20k HTTP/S requests. Interstitial on HTTP/S. Assigned dev domain. 1 team member. Traffic Inspector retention 24 hours
Lowest paid
Fly.io Network $0.02
ngrok Hobbyist $10/mo
Next step up
Fly.io Snapshots $0.08
ngrok Pay-as-you-go $20/mo
Runs where
Fly.io Hosted
ngrok Hosted
Watch out
Fly.io There is no $0 always-on Machine
ngrok Hobbyist hard-stops when the monthly credit is gone
Last checked
Fly.io 2026-10-23 · fly.io/pricing
ngrok 2026-10-23 · ngrok.com/pricing
Which one, then?
Pick ngrok if
developers who will burn the Free $5 one-time credit at $0 while they open a first Traffic Inspector, then Hobbyist at $10/month of included usage when the credit is gone — not Pay-as-you-go $20 unless they need overflow billing.
Read the ngrok page