Side by side

StackWho vs Wappalyzer

Both stand on technographic data software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

StackWho

Free plan Web

Pick StackWho if you want to find companies by technology and use filters, contact details, or CSV exports for prospecting. The free plan may be enough to browse profiles and technology stacks, but full contact details and unlimited results require Pro.

Visit StackWho

Wappalyzer

Free plan AndroidAPIExtension+3

Wappalyzer combines website technology detection with prospecting data, APIs, and integrations. The free allowance is limited, and users should account for live lookup costs and credit expiration when choosing a plan.

Visit Wappalyzer

The facts

	StackWho	Wappalyzer
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Web	Android, API, Extension, iPhone, Self-hosted, Web
Lowest paid plan	Pro: $79 a month	Pro: $250 a month
Plans published	2	4
Maker	Not published	Not published
Website	stackwho.com	wappalyzer.com
On technographic data software	#17 of 31	#13 of 31

StackWho: what it does well

Search by technology, industry, location, and company size.
Profiles can include verified emails and LinkedIn profile URLs.
Pro includes unlimited search result pages and CSV exports.
Exports can contain up to 5,000 companies each.
CSV data can be imported into several named CRMs.

What to know first

Free search is limited to 10 pages.
Free contact emails are masked and CSV export is unavailable.
Pro costs $79 a month.

Wappalyzer: what it does well

Free plan includes 50 monthly technology lookups
Bulk analysis accepts up to 100,000 URLs
APIs cover lookup, leads, subdomains, and email verification
Basic browser-extension detection happens locally

What to know first

Live results count as five lookups each
Pro costs $250 a month for one user
Plan-included API credits expire after 60 days

Alternatives to StackWho Alternatives to Wappalyzer The whole list