
Clearbit
ZoomInfo
Apollo.io
Hunter.io
AeroLeads
Proxycurl by Nubela
Coresignal
Use our dataset of 1.5 billion unique person profiles to build products, enrich person profiles, power predictive modeling/AI, analysis, and more. We work with technical teams as their engineering focused people data partner.

BuiltWith
Wappalyzer
WhatRuns
StackScan
W3Techs
PublicWWW
ZoomInfo
Explore real-time technology identification and gain insights into the tools powering top websites with StackDetect.

Which is more popular?
Based on our record, People Data Labs seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | peopledatalabs.com | stackdetect.vercel.app |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


Our focus is on enabling companies to build out their tools, product, or platform. With over 150 data points and 1.5 billion person profiles, we provide Enrichment API and Data License to data companies. Our broad data coverage includes data for Marketing Tech, Sales Tech, Fraud, Education, and...
At StackDetect, we’re passionate about unlocking the power of technology for businesses of all sizes. Our platform offers more than just insights into tech stacks – we provide actionable data that empowers companies to make informed decisions, optimize their operations, and stay ahead of the...
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing People Data Labs and StackDetect.
StackDetect's answer:
It is a top leading competitor to other websites
StackDetect's answer:
Free low cost, and highly UX UI friendly
StackDetect's answer:
Self driven start up company that is bootstrapped and audience driven.
StackDetect's answer:
NodeJS MongoDB HTML JS Git CSS TS
StackDetect's answer:
anyone that is familiar with BuiltWith, WAAMPLYZER. This is a competitor to most.
StackDetect's answer:
IT / Technology Analysis
Share your experience with using People Data Labs and StackDetect. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


The biggest strength of People Data Labs is its search function. You can identify and filter for profiles that match a constraint.However, if all you require is fresh data and enrichment of profiles, use Proxycurl....
We have no reviews of StackDetect yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Datagma is the tool I keep coming back to for this. Their /enrich endpoint accepts a personal email, cross-references it against social graph data — primarily LinkedIn activity, public profiles, and email correlation patterns — and... - Source: dev.to / 5 months ago
A few things worth flagging: PDL beats Clearbit's historical rates for US and Western European companies, but drops to ~52% match rate for Japan and South Korea specifically. Apollo underperforms on raw company matching but returns... - Source: dev.to / 5 months ago
The real conclusion I'd push back on from every vendor comparison I've read: there is no single tool that solves reverse lookup at 80%+ accuracy with clean data. The waterfall is the answer. The question is whether you build it yourself... - Source: dev.to / 5 months ago
Tracking StackDetect since Feb 2025.
When comparing People Data Labs and StackDetect, you can also consider the following products.

Clearbit provides Business Intelligence APIs
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Find out the technology behind websites
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ZoomInfo is a B2B database providing detailed business information on people and companies.
Compare ZoomInfo to People Data Labs or StackDetect:

Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
Compare Wappalyzer to People Data Labs or StackDetect:

Apollo’s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.
Compare Apollo.io to People Data Labs or StackDetect:

Extension that helps you identify technologies used on any website at the click of a button.
Compare WhatRuns to People Data Labs or StackDetect: