1Lookupvs

Factors.ai

The 5 best Factors.ai alternatives in 2026 start with 1Lookup, which puts a name and a work email on each identified visitor, where Factors.ai names the company.

1Lookup is the best Factors.ai alternative when you want the person behind the visit, not only the company: $99 a month for 4,000 identified people, and nothing for a visitor it cannot identify. Leadfeeder, Snitcher, LeadLander and RB2B are the other picks here, each with the case where it fits better.

5 credits for each identified person, and nothing for a visitor who is not identified
A name, work email, LinkedIn profile URL, job title and company for each identified visitor, with a phone number on about 1 in 4, worldwide outside Europe, by API, webhook or CSV
Unused subscription credits roll over for up to 3 months, with no fee per seat

Prices verified October 2026 on each vendor’s own pricing page.

These are the reasons teams look beyond Factors.ai.

It identifies companies, not people.
Lite caps seats at 3 and companies at 1,500 a month; the larger plans are billed annually, from $6,000 a year.

1Lookup leads the shortlist, followed by the closest swaps.

1. 1LookupTop pick, our product

Best for a named person with a work email on every identified visit

Pick 1Lookup when you want the person behind a visit, not just the company: a name, work email, LinkedIn profile URL, job title and company for each identified visitor, and a phone number for about 1 in 4, anywhere outside Europe, billed per identified person and delivered by API, webhook or CSV. It starts with a 7-day free trial and a short access application.

Starting price: $99 a month for 4,000 identified people.
Free option: Visitors who are not identified are never billed; it starts with a 7-day free trial and a short access application.
Where it wins: 5 credits for each identified person, and nothing for a visitor who is not identified, so the bill follows the people you actually get.

The price of one identified person on each 1Lookup plan, falling from Starter to Enterprise because a larger plan buys credits at a lower price, while the person always costs the same number of credits

See Website Visitor ID

2. Leadfeeder

Best for a free plan with web analytics around the company list

Pick Leadfeeder when you want Lite, its free plan, or reports on which channels, campaigns and pages bring the companies you want, and you are happy to read prices in euros.

Starting price: €79 a month for Discover, billed annually (€113 billed monthly), for up to 50 companies, in euros.
Free option: Lite is free forever with no card: unlimited users, a 7-day visitor history and the last 100 identified companies a month in the Web Visitors view, with channel, campaign and page reports.
The catch: It identifies companies, not people: the plans count unique identified companies, and verified emails and phones for the people inside them are paid for with credits from Activate.

Source: Leadfeeder pricing page, leadfeeder.com/pricing, captured October 2026

1Lookup vs Leadfeeder: full comparison

3. Snitcher

Best for company-level identification with every feature on every plan

Pick Snitcher when the account matters more than the person, you want unlimited team members and every integration included, and you would rather pay by the company than by the person.

Starting price: $49 a month billed annually ($79 billed monthly) for up to 50 companies.
Free option: A 14-day free trial with full access; the page says no credit card is required.
The catch: It identifies companies, not people: contact-level identification carries an asterisk on the page, and the FAQ says individual contact details are surfaced only when you choose to reveal them.

Source: Snitcher pricing page, snitcher.com/pricing, captured October 2026

1Lookup vs Snitcher: full comparison

4. LeadLander

Best for unlimited users and a year of stored visit data

Pick LeadLander when the company behind a visit is enough, you want unlimited users and 12 months of stored data, and up to 2,000 identified leads a month covers you.

Starting price: $89 a month for up to 100 leads on one domain (Starter), or $900 a year billed annually.
Free option: A free trial, offered on its pricing page.
The catch: API access is on Enterprise only, which is priced on request.

1Lookup vs LeadLander: full comparison

5. RB2B

Best for a free plan and a price printed at every volume

Pick RB2B when you want to start on a free plan that has no end date, or you need a price printed at every step up to 12,500 identified people a month, with Slack and Teams alerts on every plan.

Starting price: $79 a month for Starter (300 resolutions, LinkedIn URLs pushed to Slack or Teams, no email addresses); $149 a month for Pro, which adds business email addresses and all integrations (600 resolutions).
Free option: A Free plan with no end date: company-level identification and 150 resolutions a month, pushed to Slack, with no person-level identification and no email addresses.
The catch: Person-level identification is US only: the page says Company-Level ID is global on every plan, but contact-level (person) ID covers US visitors only.

Source: RB2B pricing page, rb2b.com/pricing, captured October 2026

1Lookup vs RB2B: full comparison

This table compares all 5 on the same criteria.

Product	Starting price	Free option
1Lookup	$99 a month for 4,000 identified people.	Visitors who are not identified are never billed; it starts with a 7-day free trial and a short access application.
Leadfeeder	€79 a month for Discover, billed annually (€113 billed monthly), for up to 50 companies, in euros.	Lite is free forever with no card: unlimited users, a 7-day visitor history and the last 100 identified companies a month in the Web Visitors view, with channel, campaign and page reports.
Snitcher	$49 a month billed annually ($79 billed monthly) for up to 50 companies.	A 14-day free trial with full access; the page says no credit card is required.
LeadLander	$89 a month for up to 100 leads on one domain (Starter), or $900 a year billed annually.	A free trial, offered on its pricing page.
RB2B	$79 a month for Starter (300 resolutions, LinkedIn URLs pushed to Slack or Teams, no email addresses); $149 a month for Pro, which adds business email addresses and all integrations (600 resolutions).	A Free plan with no end date: company-level identification and 150 resolutions a month, pushed to Slack, with no person-level identification and no email addresses.

Prices verified from each vendor’s public pricing page as of October 2026. Pricing models differ (subscriptions, pay-as-you-go credits, per-lookup metering), so compare at your real monthly volume; the full per-vendor volume tables are on each linked comparison page.

This is who should choose each one.

1Lookup: Best for a named person with a work email on every identified visit.
Leadfeeder: Best for a free plan with web analytics around the company list.
Snitcher: Best for company-level identification with every feature on every plan.
LeadLander: Best for unlimited users and a year of stored visit data.
RB2B: Best for a free plan and a price printed at every volume.

This is how much work a switch takes.

On the 1Lookup side the move is one script on the pages where you want visitors identified and a place for the records to go: an API, a webhook or a CSV. Factors.ai also runs attribution and journeys, so 1Lookup replaces only the visitor list: keep the analytics and send 1Lookup's people to your CRM. Run Factors.ai and Website Visitor ID side by side on the same pages for a month and compare the number of named people you get before you cancel anything.

How Website Visitor ID bills: every visit to your pages is seen, the visitors who can be named become identified people with a work email and are billed once each, and the visitors who cannot be named are dropped at no charge

The same identified-person record for a fictional visitor arriving three ways from Website Visitor ID: read by API, posted to your URL by webhook, or downloaded as a CSV file, with the same fields each time

These are the questions people ask about Factors.ai alternatives.

What is the best Factors.ai alternative?

1Lookup, if you want a named person with a work email for each identified visitor, from $99 a month for 4,000 identified people. Factors.ai stays the better fit if you want account identification inside a marketing attribution suite, with G2 and LinkedIn intent: Factors.ai sells exactly that, from $199 a month on Lite.

Is there a cheaper Factors.ai alternative?

On month-to-month billing 1Lookup costs less at 1 to 1,500 companies a month. Factors.ai never costs less than a 1Lookup plan in its published range. The two count different things, because Factors.ai bills a company once however many people from it visit and 1Lookup bills each identified person.

Does Factors.ai identify people or companies?

Companies: Factors.ai identifies accounts with a waterfall of IP-to-company sources. 1Lookup identifies the individual visitor, with a name and a work email. Factors.ai counts companies identified for the first time in a billing period, where 1Lookup bills each identified person, so a company with several visitors counts once on Factors.ai and once for each person on 1Lookup.

What does 1Lookup return for each visitor?

Identified people come back by API, by webhook or in a CSV file, each with a name, a work email, a LinkedIn profile URL, a job title and a company, and a phone number with its do-not-call flag for about 1 in 4 people. Website Visitor ID identifies visitors worldwide outside Europe: every country except the European Union, Iceland, Liechtenstein, Norway, the United Kingdom and Switzerland. A visitor it cannot identify, wherever they are, costs no credits, because only identified people are billed.

Start your free trial and see Website Visitor ID on your own site.

Website Visitor ID requires approval: start the 7-day free trial, then send a short application about your website. It costs 5 credits for each identified person and nothing for a visitor it cannot identify.

Start free trial 1Lookup vs Factors.ai in depth