
ZoomInfo
Lusha
Hunter.io
Instantly.ai
lemlist
Clearbit
Snov.io
Apollo’s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.

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, Apollo.io seems to be more popular. It has been mentioned 69 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | apollo.io | stackdetect.vercel.app |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States | Startup from the United States · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Apollo.io yet.
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
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of StackDetect yet.
Walkthroughs and reviews on video.
Free software to find email addresses - apollo.io review
More videos
No StackDetect videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Apollo.io 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 Apollo.io 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.


What is the best AI prospecting tool for B2B sales in 2026? The best tool depends on your team's specific situation. toflow.ai is a strong fit for multi-channel outreach across email, LinkedIn, and WhatsApp, and is...
We use Apollo with our Sales and BDR team to manage our cold outreach. The strength of the platform is the sequences and cadences that you can set up. Compared to other tools we have used in the past like Salesloft...
FAQWhat’s better than Apollo.io?What Apollo.io competitors are better for lead generation? What is Apollo.io used for?
We have no reviews of StackDetect yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Personal email domains destroy this. Clearbit's Enrichment API returns a null company when it hits gmail.com. Apollo routes personal domains straight to a consumer bucket and skips B2B fields entirely. Even PDL's /person/enrich endpoint... - 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
One thing comparison guides consistently get wrong: Clay is not an enrichment API. It's a waterfall orchestration tool that calls People Data Labs, Apollo, Clearbit, and others in sequence for you. It's useful, but it adds 2–8 seconds of... - Source: dev.to / 6 months ago
Tracking StackDetect since Feb 2025.
When comparing Apollo.io and StackDetect, you can also consider the following products.

ZoomInfo is a B2B database providing detailed business information on people and companies.
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Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
Compare Wappalyzer to Apollo.io or StackDetect:

Find all the email addresses related to a domain
Compare Hunter.io to Apollo.io or StackDetect:

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