Datanyze vs Seamless.AI: Data Enrichment Tool Comparison

Datanyze.com is the home of Datanyze, a B2B contact data tool whose Chrome extension is published by ZoomInfo Technologies. Anyone checking it against Seamless.AI hits an asymmetry at once. Seamless.AI's pricing page loads and names only its free plan. Datanyze.com answered a plain request with HTTP 403 and a headless browser with a bot challenge page that denied access, both when this comparison was first written and again when it was refreshed. So one side hides its paid prices and the other could not be read at all.

What is Datanyze.com?

Datanyze.com is the website of Datanyze, a tool that finds B2B contact details from inside the browser. Its Chrome Web Store listing, published by ZoomInfo Technologies, describes email addresses, direct dial and mobile numbers pulled from LinkedIn profiles and company websites, claims data on over 120 million contacts, and offers a free trial. The site itself could not be read for this comparison.

Chrome Web Store: Datanyze Chrome Extension, by ZoomInfo Technologies Inc.

"Access contact and company data directly from LinkedIn" 1

"With data on-file for over 120 million contacts, including over 84 million email addresses and 48 million direct dial numbers" 2

"Start a free trial today and receive B2B contact details directly from LinkedIn" 3

1. 1The product is a browser extension: details appear on the LinkedIn profile or company website you are already viewing.
2. 2Coverage figures are the publisher's own claim; nothing on the listing says how they are measured.
3. 3A free trial is offered. No plan or price appears anywhere on the listing.

The Quick Answer

Neither publishes a paid price this comparison could read. Seamless.AI publishes a free plan of 1 user and 50 credits and sends Pro and Enterprise to sales, and its FAQ says Pro plans start at 10,000 annual credits. Datanyze's site could not be read, and its Chrome listing offers a free trial without naming a plan. Pick Datanyze when one rep wants contact details inside LinkedIn and company websites; pick Seamless.AI when a team needs search at volume with outreach built in.

Understanding the Core Difference

Datanyze is described by its Chrome Web Store listing, published under ZoomInfo Technologies, as a way to get contact information, including email addresses, direct dial and mobile numbers, directly from LinkedIn profiles and company websites without leaving your browser.

Seamless.AI describes itself as a real-time search engine that helps B2B companies find accurate sales leads, and its FAQ says it is a search engine rather than a database.

The pricing dataset behind this site puts technographic data, meaning what software a company runs, at the centre of Datanyze. That cannot be confirmed today: datanyze.com could not be read, and the Chrome listing describes contact data only. Treat technographic coverage as a question for the free trial. What the listing does make clear is the shape: a browser tool that works on the page in front of you, including the full employee list of a company on LinkedIn. Seamless.AI is a search platform sold per user, with buyer intent, enrichment and Autopilot workflows as add-ons and Connect, its emailing, calling and task tool, included in every plan.

Pricing Comparison

Surface	What it showed
datanyze.com/pricing	HTTP 403 to a plain request, a bot challenge to a headless browser
datanyze.com	The same refusal
Datanyze Chrome Web Store listing	Read: publisher ZoomInfo Technologies, a free trial, no price
seamless.ai/pricing	Read: Free at 1 user and 50 credits; Pro and Enterprise by contact sales
seamless.ai	Read: a credit refunded when an email is invalid

Datanyze Pricing

No Datanyze price appears in this article. The pricing dataset behind this site carries a Datanyze plan ladder, but datanyze.com answered HTTP 403 to a plain request and a bot challenge to a headless browser, so there is no dated snapshot behind any of its figures and none is repeated here. The one Datanyze-authored page that loaded, the Chrome Web Store listing, offers a free trial and names no plan.

Source: Datanyze Pricing

Seamless.AI Pricing

The pricing page fetched for this comparison shows no rate on either paid tier. The page describes what each plan includes and routes both to a sales conversation, so the only published number on it is the 50 credit free allowance. The page does carry two figures that are not prices: its FAQ says Pro plans start at 10,000 annual credits, and the Pro card defines a credit as a phone number and an email together. The Seamless.AI and UpLead comparison works through what a Pro credit buys against a published per-contact price.

Source: Seamless.AI Pricing

How these figures were checked

No Datanyze figure is given, because none could be read: datanyze.com refused a plain request and a headless browser alike, and the one Datanyze-authored page that loaded names no price. Seamless.AI's pricing page was fetched for this comparison and carries no rate for either paid tier, which is what the statement above rests on rather than an inference from silence.

Two habits sit behind those sentences and both are worth borrowing when you check a vendor price yourself. A figure belongs to a page rather than to a company, because vendors contradict themselves across their own surfaces, so the page is part of the fact. And a refusal is not an absence: a site that blocks a script has told you nothing about its prices, so the only honest entry is that it could not be read.

What a realistic volume tells you

The arithmetic below is illustrative. The volume is invented for the comparison rather than measured.

Take a list build of 1,000 contacts in a month. Seamless.AI's Pro packages start at 10,000 annual credits, which is about 833 a month, and each Pro credit returns a phone number and an email, so a 1,000-contact month sits just above the smallest Pro package. That sizes the conversation even though the price is quoted.

Datanyze publishes nothing readable to size against. Its listing describes a tool that reveals details on the profile or company page in front of you, including every employee a company lists on LinkedIn, which is a rep working account by account rather than a bulk list build. Ask Datanyze for its credit allowance per plan in writing before comparing the two on volume.

Features Breakdown

Datanyze's Chrome listing says

• Email addresses, direct dial and mobile numbers
• From LinkedIn profiles and company websites
• All employees of a company on its LinkedIn page
• Data on over 120 million contacts
• A free trial

Seamless.AI lists

• A real-time search engine for emails and cell phones
• Pitch intelligence and a job changes filter
• Connect: emailing, calls and tasks, on all plans
• Add-on AI Assistant, Data Enrichment
• Add-on Autopilot, Buyer Intent Data
• A credit refunded when an email is invalid

Datanyze key features

The Chrome Web Store listing is the only Datanyze feature list that could be read. It describes email addresses, direct dial and mobile numbers taken from LinkedIn profiles and company websites, a view of every employee a company lists on LinkedIn, and data on over 120 million contacts, including over 84 million email addresses and 48 million direct dial numbers. Items the dataset attributes to Datanyze beyond that, such as technographic insights and icebreakers, could not be confirmed.

Seamless.AI key features

Seamless.AI's pricing page lists email addresses and cell phones from a real-time search engine, pitch intelligence, a job changes filter, an API and Connect for emailing, calls and tasks, with AI Assistant, Data Enrichment, Autopilot and Buyer Intent Data sold as add-ons. Its homepage adds a Chrome extension and says that if an email is invalid, it automatically refunds your credit.

The practical difference is where the work happens. Datanyze's listing sells the moment a rep is looking at a profile. Seamless.AI sells the search that builds the list in the first place, and then the outreach from inside the same tool. A quote from Seamless.AI that includes its add-ons and one that does not are different products, so ask which one you are reading.

Integration Ecosystem

Datanyze's listing describes a Chrome extension that works on LinkedIn profiles and company websites. Its site, where an integrations list would sit, could not be read, so no Datanyze integration is claimed here.

Seamless.AI's pages say it connects with 6,000+ tools.

For a single rep the integration list barely matters, because the output is a copied field or a saved contact either way. For a team it matters a great deal, and that asymmetry is another way of saying these two products are aimed at different buyers.

Who Should Pick Which

Pick Datanyze when one person wants contact details on the page they are already viewing, LinkedIn profiles and company websites included, and is willing to run the free trial to learn the price. Confirm the plan and the credit allowance in writing, because its site could not be read here.

Pick Seamless.AI when the volume is real. A team building lists of hundreds or thousands of contacts is buying search and outreach, and its Pro packages start at 10,000 annual credits, sold per user.

A third possibility deserves a mention because it is often the right one: use one source for targeting and a separate source for contacts. Those are different jobs and buying one tool to do both usually means doing one of them badly.

Where Each One Sits in a Cold Outbound Stack

Targeting belongs before anyone is contacted, because it decides who belongs on the list at all, and contact resolution belongs immediately after it. Running them in the wrong order means paying to resolve contacts at companies that were never a fit. Datanyze enters the wave one profile at a time; Seamless.AI enters it with a search, and with Connect it can also send from the same tool.

After both, the constraint is the same as always. Verify the address separately from whoever supplied it, and the bounce rate benchmarks are worth reading first, because a bounce costs sending reputation shared across every campaign on those domains. Then one message per campaign, no bumps and no thread replies.

Switching Between Them

Moving off Datanyze is usually cheap, because a browser tool used profile by profile leaves little behind beyond the contacts already saved. Credits do not transfer. If a Datanyze signal was actually driving targeting decisions, name it before cancelling and find its replacement first.

Moving off Seamless.AI onto Datanyze is rarely a like for like replacement and should not be planned as one. A search platform with outreach built in and a browser extension do different work, so the move is a decision to change how prospecting works rather than a decision about a vendor.

Either way, re-verify addresses carried across. A resolved contact ages regardless of which tool produced it.

Feature Comparison Summary

Getting Started Checklist

1. Count the contacts you need in a month, and ask Datanyze in writing what each plan's credit allowance is.
2. If technographic data is the reason Datanyze is on the list, confirm it inside the free trial, since its listing does not mention it.
3. If a bulk list build is in scope, test it on Seamless.AI, whose Pro packages start at 10,000 annual credits.
4. Run Seamless.AI's 50 free credits over target contacts you have failed to find elsewhere.
5. Ask Seamless.AI in writing which add-on capabilities a quote covers.
6. Confirm the current Datanyze rate directly with the vendor, since its site could not be read for this comparison.

Final Thoughts

Datanyze is a browser tool, published under ZoomInfo Technologies, whose own site refused every request made for this comparison. Seamless.AI is a team purchase with no published paid rate and the volume to match. The decision between them is usually settled by asking how many contacts a month the work actually needs.

Get every Datanyze figure from the vendor in writing before relying on it, because its site could not be read here.

Related Reading

• Best Datanyze Alternatives in 2026
• Best Seamless.AI Alternatives in 2026
• Apollo.io vs Datanyze: Data Enrichment Tool Comparison
• Datanyze vs ZoomInfo: Data Enrichment Tool Comparison
• Apollo.io vs Seamless.AI: Data Enrichment Tool Comparison

If you would rather have this run for you, RevenueFlow books qualified meetings on a pay-per-meeting basis and publishes client results.

Pricing and features are taken from the vendors' own pages. Verify current terms with the vendor before relying on them.