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Comparison

Stack Lookup and BuiltWith

Only published facts are compared here: prices, and properties both products document about their own API. Nothing on this page is a claim about BuiltWith's data, its accuracy or its coverage, and none of it comes from using their service.

BuiltWith figures are read from their own published pricing page and API documentation, captured 12 September 2026. Prices change; check theirs before deciding.

Count a segment, freeOur pricing

What each one publishes

n6
Denominatorproperties both products document about themselves
Landing12 September 2026
Method/method/comparison
Figurecomparison.builtwith
Published property
Stack Lookup
BuiltWith
Cost of counting
free, and no key needed
no count endpoint is documented
Per-call credit cost
published, 15 of 30 endpoints free
readable from WhoAmI after signing up
Error schema
14 codes, one envelope, a docs_url on every response
their endpoint pages state the format is not guaranteed
Technology filter logic
all, any and none
their Lists API documents AND only
What a row is
a company, resolved from its domains
a website
Free tier
unlimited counting, 5,000 credits a month for rows
10 detailed lookups a day
Cost of countingfreeBuiltWith documents no count endpoint
Per-call credit costpublishedtheirs is behind a signup
Error schema14 codestheirs is documented as not guaranteed
Filter logicall/any/nonetheir Lists API documents AND only
What a row isa companytheirs is a website
Free tiercountingtheirs is 10 detailed lookups a day

Propertieseach one documented by the product it describescaptured 12 September 2026

Their published plans

Plan
Published price
API credits
Free
0 USD
10 detailed lookups a day
Advanced
144 USD a year
zero API credits
Basic
295 USD a month
published
Pro
495 USD a month
published
Team
995 USD a month
published
Pay as you go
99 USD per 2,000 credits
published
Free0 USD10 detailed lookups a day
Advanced144 USD a yearzero API credits
Basic295 USD a monthpublished
Pro495 USD a monthpublished
Team995 USD a monthpublished
Pay as you go99 USD per 2,000 creditspublished

Plans6 published tiers, no trial and no refunds statedOurs, for comparison

This page is a price comparison and a comparison of documented API properties. It says nothing about which product detects more, or detects better, because that would need their data, and their terms forbid using their service for it.