1lookup

Website visitor identification

From $0.01

per identified person (5 credits); $0.02475 on Starter

Website visitor identification

$199 a month on Lite for up to 1,500 companies identified a month and 5,000 tracked users; Basic is $6,000 a year for 3,000 companies a month

factors.ai

2.5¢ per identified person, 90% below RB2B's 25¢

Factors.ai starts at $199 a month for 1,500 identified companies, and 1Lookup starts at $99 a month for 4,000 identified people.

Looking for a Factors.ai alternative? This page sets Factors.ai pricing beside 1Lookup, with every Factors.ai figure taken from its own published pages, checked October 2026.

Start free trial See per-person pricing

7-day free trial, then a short application
You pay only for the people identified

2.5¢
For each identified person
1¢ on Enterprise, 5 credits on every plan
$0
For a visitor we cannot identify
you pay for people, not for traffic
0
Seat fees
your whole team on one account
3 months
Rollover on unused credits
one balance across every product

At a glance

Here is where 1Lookup wins against Factors.ai, and where Factors.ai still wins.

Factors.ai identifies the companies visiting your site with a waterfall of IP-to-company sources, inside an account-based marketing and attribution suite. 1Lookup identifies the individual visitor, with a name, work email and LinkedIn profile, at 5 credits for each identified person, and a visitor it cannot identify costs nothing.

1lookupWhere 1Lookup wins

The individual visitor, not only the company: a name, a work email and a LinkedIn profile URL for each identified person
Month-to-month plans at the listed price, from $99 a month for 4,000 identified people, down to $0.01 a person on Enterprise
You pay only for identified people: a visitor 1Lookup cannot identify costs no credits
The same credits also pay for phone, email and IP lookups, and unused subscription credits roll over for up to 3 months

What it costs

From $0.01

per identified person (5 credits); $0.02475 on Starter

Where Factors.ai wins

Account identification with a waterfall of IP-to-company sources, next to marketing attribution.
Slack and Teams alerts on Lite; CRM sync and more automations from Basic, and G2 and LinkedIn intent on Growth.
A free trial on every plan, with no card.

What it costs

$199 a month on Lite for up to 1,500 companies identified a month and 5,000 tracked users; Basic is $6,000 a year for 3,000 companies a month

Short answer

Factors.ai pricing, as its own page printed it in October 2026: $199 a month on Lite for up to 1,500 companies identified a month and 5,000 tracked users; Basic is $6,000 a year for 3,000 companies a month. Factors.ai bills for this: a plan price with caps on tracked users and on companies identified a month. 1Lookup charges 5 credits per identified person and nothing for an unidentified visitor, from $99 a month for 4,000 identified people.

1lookupvs

Identify a website visitor for 2.5¢, 90% below RB2B's 25¢.

The same kind of record for each person: name, work email, LinkedIn profile, job title and company, and on 1Lookup a phone number for about 1 in 4 people. A visitor we cannot identify costs nothing.

1Lookup

2.5¢

a person

per identified person on the $99 Starter plan, down to 1¢ on larger plans

RB2B

25¢

a person

per identified person on Pro: $149 for 600, then 25¢ each

90%

less for every person identified

RB2B names US visitors only; 1Lookup names visitors worldwide outside Europe.

RB2B's pricing page says “Contact-level (person) ID is US only” and lists no phone number on any plan. Source: rb2b.com/pricing, read October 2026.

People identified a month

2,500

10012,500

1Lookup$99 a month
Factors.aicounts companiesCustom price
Basic ($6,000 a year for 3,000 companies a month), Growth ($20,000 a year for 8,000) and Enterprise are billed annually.
RB2B$349 a month

At 2,500 people a month, 1Lookup is $250 a month less than RB2B: 72% less.

Starter at $99 a month covers up to 4,000 identified people (5 credits each). Credits you do not spend on visitors work on every other 1Lookup lookup.

Start free trial

Website Visitor ID requires approval: start the free trial, then send a short application.

What replaces what

Here is which 1Lookup product matches each Factors.ai job.

Factors.ai bills for this: a plan price with caps on tracked users and on companies identified a month. 1Lookup counts each identified person, with the contact details included, from a credit balance that also pays for other lookups.

Company identification inside an account-based marketing and attribution suite
Website Visitor ID
The person who visited, identified: name, work email, LinkedIn profile URL, job title and company, by API, webhook or CSV. Billed per identified person, and a visitor it cannot identify costs nothing.
5 credits per identified person, free when a visitor is not identified

Side by side

Both products are measured on the same criteria, using Factors.ai's own published numbers.

Criteria	1lookup
What you are billed for	5 credits for each identified person. A visitor we do not identify costs nothing.	A plan price with caps on tracked users and on companies identified a month
Pricing model	Monthly or yearly plans of credits, and the same credits pay for every other 1Lookup product.	Plans with caps on tracked users and companies identified a month, inside an account-based marketing and attribution suite: Lite is monthly, and Basic, Growth and Enterprise are billed annually.
Starting price	$99 a month on Starter, which covers up to 4,000 identified people at $0.02475 each.	$199 a month on Lite for up to 1,500 companies identified a month and 5,000 tracked users; Basic is $6,000 a year for 3,000 companies a month.
Free option	A 7-day free trial on every plan. A visitor we do not identify costs nothing.	No free plan on its pricing page.
How you get started	A 7-day free trial, then a short application: we review each website before we switch on visitor identification.	A free trial on every plan, with no card.
Seat fees	None. The whole team works from one account.	Not printed on its pricing page
Do credits expire?	Unused subscription credits roll over for up to 3 months.	Not printed on its pricing page

At volume

This is what Factors.ai and 1Lookup cost at the same monthly volume.

Factors.ai counts unique identified companies and 1Lookup counts identified people, so a company with three visitors is one identification on Factors.ai and up to three on 1Lookup. Each row uses the same number for both, so read it against the number of people you expect and the number of companies you expect. Prices are the published ones, read in October 2026.

Factors.ai prices are in dollars.

Volume a month

1lookup

Lower price

100companies a month
1Lookup
$99 a month
Starter, up to 4,000 people, $0.02475 each
Factors.ai
$199 a month
Lite, up to 1,500 companies
1Lookup is lower
250companies a month
1Lookup
$99 a month
Starter, up to 4,000 people, $0.02475 each
Factors.ai
$199 a month
Lite, up to 1,500 companies
1Lookup is lower
400companies a month
1Lookup
$99 a month
Starter, up to 4,000 people, $0.02475 each
Factors.ai
$199 a month
Lite, up to 1,500 companies
1Lookup is lower
600companies a month
1Lookup
$99 a month
Starter, up to 4,000 people, $0.02475 each
Factors.ai
$199 a month
Lite, up to 1,500 companies
1Lookup is lower
1,000companies a month
1Lookup
$99 a month
Starter, up to 4,000 people, $0.02475 each
Factors.ai
$199 a month
Lite, up to 1,500 companies
1Lookup is lower
2,500companies a month
1Lookup
$99 a month
Starter, up to 4,000 people, $0.02475 each
Factors.ai
Basic ($6,000 a year for 3,000 companies a month), Growth ($20,000 a year for 8,000) and Enterprise are billed annually
Different currency
5,000companies a month
1Lookup
$299 a month
Growth, up to 17,000 people, $0.0176 each
Factors.ai
Basic ($6,000 a year for 3,000 companies a month), Growth ($20,000 a year for 8,000) and Enterprise are billed annually
Different currency

1Lookup is lower

At 1 to 1,500 companies a month on month-to-month billing.

Factors.ai is lower

At no volume on month-to-month billing, against 1Lookup's plans.

Factors.ai figures from factors.ai, October 2026. Company identification for up to 5,000 tracked users, inside an account-based marketing and attribution suite. 1Lookup figures come from the live rate card.

Set your own monthly volume in the cost calculator

How you buy

This is how you buy from 1Lookup and from Factors.ai.

1lookup

How it is sold
Monthly or yearly plans of credits, with 5 credits for each identified person and nothing for a visitor who is not identified
What it starts at
$99 a month on Starter, for up to 4,000 identified people
How you get access
Start the 7-day free trial, then send a short application about your website

How it is sold
Plans with caps on tracked users and companies identified a month, inside an account-based marketing and attribution suite: Lite is monthly, and Basic, Growth and Enterprise are billed annually
What it starts at
$199 a month on Lite for up to 1,500 companies identified a month and 5,000 tracked users; Basic is $6,000 a year for 3,000 companies a month
How you try it
A free trial on every plan, with no card

A real result

This is what one 1Lookup result looks like.

Add one script to your site
Put the script on the pages where you want visitors identified, such as your pricing and product pages. There is nothing for your visitors to fill in.
We identify the visitors we can, worldwide outside Europe
Each visit from a country outside Europe is matched to a person. A visit we cannot put a name to is dropped, and you are not billed for it.
The person reaches you by API, webhook or CSV
Each identified person is delivered once as flat, structured JSON, or collected into a CSV. Every identified person bills 5 credits.

See the full product page

api.1lookup.ioIdentified

An identified visitor arrives as a person, a work email and the page they were on

Name: Jordan Sample
Work email: jordan.sample@example.com
Phone: +1 415 555 0142
Do-not-call flag: No
LinkedIn: linkedin.com/in/jordan-sample-example
Job title: Head of Operations
Company: Sample Freight Co
Company site: example.com
Page viewed: /pricing

Delivered to your webhook, 5 creditsShow

{
  "identified": true,
  "person": {
    "first_name": "Jordan",
    "last_name": "Sample",
    "work_email": "jordan.sample@example.com",
    "phone": "+1 415 555 0142",
    "phone_do_not_call": false,
    "job_title": "Head of Operations"
  },
  "company": { "name": "Sample Freight Co" },
  "visit": { "page_url": "https://yoursite.com/pricing" },
  "metadata": { "credits_used": 5 }
}

Try the Website Visitor ID Cost Calculator, one of 1Lookup's free tools.

Enter your monthly visitors and see what each tool's published plan costs at that volume.

Open the free tool

The evidence

Here is the evidence behind every number on this page.

Here are Factors.ai and 1Lookup side by side on the terms you check before you sign.

The terms that decide what a year actually costs, rather than what the first month does. “Not listed” means we could not verify it on either product’s published pages, not that the answer is nothing.

Term	1Lookup	Factors.ai
Minimum commitment	None. Monthly plans with no contract and no minimum volume; cancel any time	Basic, Growth and Enterprise are billed annually.
API access	Included on every plan and during the free trial; there is no tier that unlocks it	Not listed
Rate limit	200 requests per 10 seconds for each API key on standard lookups and 1,000 requests a minute for each key on number type, HLR and MNP, and each account can make up to 1,000 requests a minute in total across all its keys; higher limits are available on request	Not listed
Support	Starter: Email Support; Growth: Priority Email & Chat Support; Professional: Chat + Live Meeting; Enterprise: Dedicated CSM	Not listed

1Lookup

Source: 1lookup.io homepage, captured August 2026

Factors.ai

Source: factors.ai homepage, captured October 2026

Factors.ai pricing and product facts verified against factors.ai as of October 2026. Prices change, so confirm on the vendor’s site. 1Lookup numbers come from the live rate card.

Who it is for

Pick 1Lookup or stay with Factors.ai depending on the job in front of you.

1lookup

Choose 1Lookup if

you want the person and not only the company: a name, work email, LinkedIn page and job title for each identified visitor, at $0.02475 or less, with nothing charged for a visitor it cannot identify.

Factors.ai

Consider Factors.ai instead 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.

Questions

People ask these questions before they switch from Factors.ai.

What is the best Factors.ai alternative?

If you want account identification inside a marketing attribution suite, with G2 and LinkedIn intent, Factors.ai is built for that: Factors.ai sells exactly that, from $199 a month on Lite. If you want the individual person as data, by API, webhook or CSV, at 5 credits per person on a balance that also pays for phone, email and IP lookups, 1Lookup's Website Visitor ID is the alternative. Website Visitor ID requires approval. Start the 7-day free trial, then send the short application inside your account: we review each website before we switch on visitor identification.

How much does Factors.ai cost?

Plans with caps on tracked users and companies identified a month, inside an account-based marketing and attribution suite: Lite is monthly, and Basic, Growth and Enterprise are billed annually. A free trial on every plan, with no card. Checked October 2026 on factors.ai.

How much does 1Lookup charge for an identified visitor?

5 credits for each identified person, and nothing for a visitor who is not identified. Starter ($99 a month) covers up to 4,000 identified people at $0.02475 each, Growth ($299 a month) covers up to 17,000 identified people at $0.0176 each, Professional ($799 a month) covers up to 50,000 identified people at $0.016 each and Enterprise ($1,999 a month) covers up to 200,000 identified people at $0.01 each. Credits come from a plan that also pays for every other 1Lookup product, and unused subscription credits roll over for up to 3 months.

Is 1Lookup cheaper than Factors.ai?

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. At 1,500 a month (people on 1Lookup, companies on Factors.ai), 1Lookup Starter costs $99 and Factors.ai Lite costs $199.

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.

Which visitors does 1Lookup identify?

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.

What comes back for each identified person?

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.

Do unused credits carry over?

1Lookup subscription credits roll over for up to 3 months, so a quiet month does not waste a plan.

How do I switch from Factors.ai to 1Lookup?

Add one script to the pages where you want visitors identified, and pick where the people 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 for a month and compare the named people you get before you cancel anything.

Is Factors.ai worth it in 2026?

Yes, if you run account-based marketing and want company identification next to attribution, G2 and LinkedIn intent, with a free trial on every plan. If you want a named person with a work email for each identified visitor, from $99 a month for 4,000 identified people, compare 1Lookup.

1lookup

Start free trial and see the person behind each visit

Start your free trial, see who is visiting your site, and compare the bill with Factors.ai.

5 credits per identified person, nothing for a visitor it cannot identify, from $99 a month for 4,000 identified people.

Start free trial See per-person pricing

Factors.ai starts at $199 a month for 1,500 identified companies, and 1Lookup starts at $99 a month for 4,000 identified people.

Here is where 1Lookup wins against Factors.ai, and where Factors.ai still wins.

Identify a website visitor for 2.5¢, 90% below RB2B's 25¢.

Here is which 1Lookup product matches each Factors.ai job.

Website Visitor ID

Both products are measured on the same criteria, using Factors.ai's own published numbers.

This is what Factors.ai and 1Lookup cost at the same monthly volume.

This is how you buy from 1Lookup and from Factors.ai.

This is what one 1Lookup result looks like.

Try the Website Visitor ID Cost Calculator, one of 1Lookup's free tools.

Here is the evidence behind every number on this page.

Here are Factors.ai and 1Lookup side by side on the terms you check before you sign.

Pick 1Lookup or stay with Factors.ai depending on the job in front of you.

People ask these questions before they switch from Factors.ai.

Start your free trial, see who is visiting your site, and compare the bill with Factors.ai.

Keep researching Factors.ai with the matching 1Lookup pages.