Clerk vs Fly.io Pricing | Costbench
Compare / Clerk vs Fly.io
Shortlist
Team size
25 seats

Clerk vs Fly.io

Developer Tools pricing comparison · 2026

Clerk pricing ranges from $0–$300/month, while Fly.io ranges from $0–$2000/month. Fly.io is typically 73% more affordable, though your actual cost depends on tier and team size.

Visit
See pricing on each vendor's site
Above-the-fold path — each link opens the vendor's pricing page in a new tab.
Compare
2 products · Developer Tools
Side-by-side · live
Clerk
Clerk pricing information is not publicly available in structured tier format.
verified 17d ago
$19K $90K
View pricing →
Fly.io
Fly.
verified 27d ago
$19K $90K
View pricing →
Verdict · list-price math · year 1
Fly.io saves $60K vs Clerk · 25 seats
Cheapest $30K
Spread 67%
Estimated license cost
at 25 seats
List price × seats. Click a tier below to lock it.
Business
$90K/yr
year 1 license · $300/seat
Support: Premium
$30K/yr
year 1 license · $99/seat
What buyers actually pay
median, annual
Vendr deal-flow data. The real benchmark, not list price.
No Vendr data
Not in Vendr's deal flow
Median annual
$19K/yr
Vendr · n=24
REF · 01

Sources & confidence

Every dollar amount and contract clause below traces back to a sourced fact. We don't manufacture composite scores.

Where this data comes from
Vendr · TrustRadius · Reddit · BBB · official docs
Sources No structured sources
Last verified 2w ago
Confidence Medium confidence
Sources 1 sourced fact
Vendr median
Last verified 3w ago
Confidence High confidence
REF · 02

Plans at a glance

Every tier per product. Lock one to drive the cost row above and reveal a tier-specific outbound CTA.

Tier ladder
Click a tier to lock the cost row to it. Locking surfaces a tier-specific Visit CTA.
REF · 03

Hidden costs

Each cost is severity-ranked, with the dollar range quoted from its source (Vendr, Reddit, TrustRadius, BBB, official docs) — never our estimate.

Beyond the sticker
Severity-ranked, sourced
No hidden costs documented
No hidden costs documented
REF · 05

What users say

Aggregated, with sample sizes. We use whichever review platform has data.

User reviews
TrustRadius · Trustpilot · G2
No public ratings yet
Best for
Developers and hobby projects getting started with authentication
Watch out
Concerns about predatory pricing after gaining market adoption
No public ratings yet
Best for
Evaluating Fly.io before committing to pay-as-you-go billing
Decide
Get a quote from each vendor
Each link opens the vendor's pricing page in a new tab.
License cost is computed from publicly listed plans (real math, list price × seats). Median annual cost is from Vendr's deal flow when available — see source badges. Hidden costs and contract terms each cite their own sources. We do not invent composite scores.
Developer Tools

Clerk

$0–$300
/month
4 plans · Free tier
Full pricing breakdown →
VS
Developer Tools

Fly.io

$0–$2000
/month
4 plans · Free tier
Full pricing breakdown →

Plan-by-Plan Pricing

Plan Clerk Fly.io
Hobby Free /month Free /month
Pro $25 /month Custom
Business $300 /month $29 /month
Enterprise Custom $99 /month

Continue researching