Knock2 vs LeadPost
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
The short answer
Both sides assessedKnock2 compared with LeadPost
LeadPost is the consumer-side counterpart, resolving anonymous B2C shoppers to names, emails, and postal addresses and pushing them into email, social, display, and direct mail from $249 a month. Knock2 resolves B2B work identities and routes them to sales tooling. There is essentially no overlap: if you sell to businesses, LeadPost's consumer graph is irrelevant, and if you sell to consumers, Knock2's firmographic scoring has nothing to score.
LeadPost compared with Knock2
Knock2 is the B2B counterpart at $199 a month, resolving US work identities with 93 percent account-level and 62 percent person-level claims against engaged sessions, plus buying-committee expansion, AI scoring, an API, and an MCP endpoint. LeadPost resolves consumers with postal addresses and retargets them across four channels. If you sell to businesses, Knock2's firmographic layer is essential and LeadPost's household data is noise; if you sell to consumers, the reverse.
Choose Knock2 if
US-focused B2B sales teams that want a named person and their buying committee in Slack within seconds of the visit, teams that already own a sequencer and want a clean identification layer feeding it, and buyers who want every feature available at the entry price rather than gated behind an upper tier.
Choose LeadPost if
Consumer businesses in high-ticket verticals such as real estate, automotive, and healthcare where a named individual with a postal address is worth pursuing, marketing agencies running identification and retargeting for a portfolio of B2C clients, and ecommerce brands that want to recover anonymous browsers into Klaviyo without waiting for a form fill.
Side by side
13 attributes| Attribute | Knock2 | LeadPost |
|---|---|---|
| Category | Visitor ID | Visitor ID |
| Starting price | $199 per month (600 identified contacts) (7 days trial) | $249 per month (Standard, up to 750 leads) (14 days trial) |
| Pricing model | Usage-based monthly subscription priced on identified contacts per month with an attached credit pool, month-to-month or annual, and every feature included on every tier. | Flat monthly subscription metered on identified leads per month, with three published self-serve tiers differing in lead allowance and support level rather than in features. |
| Free plan | No | No |
| Free trial | 7 days, self-serve, no sales call | 14 days with up to 200 B2C leads, no credit card required, self-serve signup |
| Best for | US-focused B2B sales teams that want a named person and their buying committee in Slack within seconds of the visit, teams that already own a sequencer and want a clean identification layer feeding it, and buyers who want every feature available at the entry price rather than gated behind an upper tier. | Consumer businesses in high-ticket verticals such as real estate, automotive, and healthcare where a named individual with a postal address is worth pursuing, marketing agencies running identification and retargeting for a portfolio of B2C clients, and ecommerce brands that want to recover anonymous browsers into Klaviyo without waiting for a form fill. |
| Setup time | Under five minutes for the script, per the vendor, plus perhaps an hour writing the ICP description and the routing rules. There is no tag manager configuration or per-platform integration. | Minutes. One line of code, no forms, no cookie configuration, and no per-platform integration. Connecting Klaviyo, HubSpot, or an FTP delivery adds perhaps another half hour. |
| Learning curve | Low. Plain-English ICP scoring removes the rule-building step that makes most competitors' configuration painful, and the routing builder keys on obvious fields. The only genuinely new concept for most buyers is buying-committee expansion, which changes how you think about a visit. | Low on identification, moderate on retargeting. The identification side needs no configuration, but running four channels well, particularly direct mail with its production lead times and per-piece costs, is a real marketing discipline rather than a toggle. |
| Platforms | Web application, JavaScript tracking script, REST API, MCP endpoint, Webhooks | Web application, JavaScript tracking script, Automated FTP delivery, Webhooks, Manual CSV download |
| Compliance | GDPR (account-level only for EU visitors), CCPA, ePrivacy Directive (vendor-stated) | Vendor states GDPR and CCPA compliance; no certifications, audits, or documented legal basis published |
| Founded | 2023 | 2020 |
| Headquarters | New York, New York, United States | St Louis, Missouri, United States |
| Ownership | Privately held, founder-led | Privately held, bootstrapped, founder-led |
Strengths and limitations
Knock2
Strengths
- Publishes match rates with a stated denominator (93 percent account-level and 62 percent person-level on engaged US sessions defined as ten seconds or two pageviews), which is more methodological honesty than this category usually offers.
- Device-level matching across several consented identity graphs rather than reselling one provider, which is a genuine architectural reason for higher resolution.
- Every feature on every tier: API, MCP, webhooks, all CRM and outbound connectors, buying-committee expansion, and AI scoring are available on the $199 plan.
- Buying-committee expansion is the most useful feature here, because one anonymous researcher is rarely the buyer and three to five named influencers is an account plan.
Limitations
- Person-level identification is US-only, which makes the headline capability irrelevant for European, UK, and most international sales motions.
- The 93 percent claim is measured against engaged sessions rather than total traffic, so the number that appears on your invoice per thousand raw sessions will look much less impressive than the marketing figure.
- No opt-out workflow or data broker registration is published, which will stall a serious privacy review.
- No built-in sequencer or sending infrastructure, so you need a separate outbound tool; whether that is a limitation or a virtue depends on your stack.
LeadPost
Strengths
- The only tool in this category that returns a verified postal address and can execute USPS direct mail from the same dashboard, which opens a channel no company-level competitor can reach.
- Genuinely cross-channel: email, Facebook and Instagram, Google display, and physical mail all managed from one interface rather than exported to four platforms.
- Every feature on every tier, with the three published plans differing only in lead volume and support response.
- An unusually long and explicitly named integration list for a seven-person company, including Klaviyo, HubSpot, Salesforce, Mailchimp, Zoho, Reply.io, webhooks, Zapier, and automated FTP.
Limitations
- The ethical position is the most exposed in this category. Posting physical mail to the home address of someone who browsed anonymously is a step beyond what most buyers have thought through, and the recipient consented to a data partner rather than to you.
- GDPR compliance is asserted rather than documented. There is no published legal basis, no data residency statement, and no certification, and the model is fundamentally a US consumer identity product.
- Opt-out is claimed but the workflow is not published, nor is the data partner list, nor any data broker registrations.
- The up-to-40-percent match rate is a vendor claim with no stated denominator and no methodology, unlike competitors such as Knock2 that at least define what traffic they are measuring.
Pricing compared
Knock2
Usage-based monthly subscription priced on identified contacts per month with an attached credit pool, month-to-month or annual, and every feature included on every tier.
- Startup$199
- Pro$349
- Growth$499
- Growth Plus$749
- Scale$999
Per identified contact Knock2 is mid-market: more expensive than Happierleads at entry, far more expensive than RB2B's free tier, and comparable to Leadpipe once you account for what each returns. What you are paying the premium for is match rate and structure. If the 62 percent person-level figure holds anywhere near true on your US traffic, the effective cost per usable contact is lower than a cheaper tool with a thinner graph, because you are not paying for sessions that never resolve. The ungated feature set compounds that: a $199 subscription with API, MCP, buying-committee expansion, and every CRM connector is more product than several competitors sell at three times the price. The value case collapses if your traffic is not predominantly US, at which point you are buying an account-level tool at person-level prices.
LeadPost
Flat monthly subscription metered on identified leads per month, with three published self-serve tiers differing in lead allowance and support level rather than in features.
- Standard$249
- Advanced$499
- Premium$999
Judged against B2B company-level tools LeadPost looks expensive, but that comparison is meaningless: those tools return a company name and LeadPost returns a household. Judged against what it replaces, which is a purchased consumer mailing list plus a separate email platform plus a separate audience-push tool, 22 to 33 cents per verified identified person with four retargeting channels in one dashboard is reasonable. The pricing curve is unusually flat, so there is little economic reward for scaling up, and the every-feature-on-every-tier structure means a small operator gets the whole platform at $249. The value hinges on your vertical: in real estate, automotive, healthcare, and high-ticket ecommerce, where a single conversion is worth thousands, the maths works easily. In low-margin ecommerce or B2B SaaS it does not.
Editorial verdict on each
Knock2
Knock2 is the best-structured product in the US person-level end of this category, and the structure is the reason to buy it. Every feature on every tier, month-to-month billing, an API and an MCP endpoint at $199, match rates published with an actual denominator, and buying-committee expansion that turns a single anonymous reader into a workable account. If your traffic is predominantly US and you already own a sequencer, this is the identification layer to try first, and the seven-day trial will tell you within a week whether the economics work on your site. If you sell into Europe, the headline capability is switched off and you should be looking at Snitcher or Leadinfo. And understand what you are buying either way: the people Knock2 names consented to a publisher, not to you, and the vendor has not published how a visitor opts out.
Read the full Knock2 profileLeadPost
LeadPost is the consumer answer in a category built almost entirely for B2B, and on its own terms it is well made: person-level resolution with a verified postal address, four retargeting channels including physical mail in one dashboard, an honest published traffic minimum, a long named integration list, and every feature available at the $249 entry price. For real estate, automotive, healthcare, and high-ticket ecommerce, where a single conversion is worth thousands and direct mail still converts, the economics work easily at 22 to 33 cents per identified person. For B2B software it is the wrong shape, and for anyone with European visitors it is the wrong jurisdiction. The thing to settle before buying is not the pricing but the premise: the person whose home address arrives in your dashboard consented to one of LeadPost's data partners, not to you, and the vendor publishes neither the partner list nor the opt-out workflow. If posting a letter to that household still feels right after thinking it through, this is a capable tool. If it does not, that instinct is worth more than the match rate.
Read the full LeadPost profileKnock2 profile last reviewed 2026-08-22; LeadPost last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.