# Clearbit vs Apollo.io

Source: https://piperocket.digital/compare/clearbit-vs-apollo/
Author: Ranjeeth Kumar, SEO Manager at PipeRocket
Reviewed by: Kamaraj Mathiarasan (Kim), Co-Founder, PipeRocket Digital
Published: 2026-07-03
Last updated: 2026-07-16

A neutral head-to-head comparison of Clearbit (Breeze Intelligence) and Apollo.io across data enrichment, prospecting, outreach, integrations, and pricing for B2B sales and marketing teams.

## The short answer

Clearbit and Apollo.io both sit in the B2B data category, but they solve different jobs. Clearbit (now shipping as Breeze Intelligence inside HubSpot) is a data enrichment and website-visitor-identification layer: it fills in firmographic and technographic detail on your records and de-anonymizes company traffic. Apollo.io is an all-in-one prospecting and sales-engagement platform: a large searchable contact database plus native email sequences, a dialer, and LinkedIn workflows. They overlap on data, but Clearbit is enrichment-first and HubSpot-bound, while Apollo is prospecting-and-outreach-first and CRM-agnostic.

### Choose Clearbit: Enrichment and visitor ID inside HubSpot

If you are **already a HubSpot customer**, need to enrich inbound records and identify anonymous website visitors, and want firmographic accuracy on US mid-market and larger companies, Breeze Intelligence is the fit. Practical entry is roughly **$75/mo** ($30 HubSpot Starter plus $45 for 100 credits, annual). It is not viable if you are not on HubSpot.

### Choose Apollo.io: All-in-one prospecting, database, and outreach

If you run **outbound sales or prospecting**, want a large searchable contact database plus **built-in sequencing and dialer** in one tool, and use Salesforce, HubSpot, Pipedrive, or Zoho, Apollo is the broader pick. It starts free, with paid tiers from **$49/user/mo** (annual), and suits agencies running multiple client outreach programs on a per-seat budget.

## At a glance

|                    | Clearbit                                                 | Apollo.io                                            |
|--------------------|----------------------------------------------------------|------------------------------------------------------|
| **Vendor**         | Clearbit (now HubSpot Breeze Intelligence)               | Apollo.io                                            |
| **Category**       | Data enrichment + website visitor ID                     | Prospecting database + sales engagement (all-in-one) |
| **Starting price** | ~$75/mo minimum (HubSpot + 100 credits, annual)          | $0 free; paid from $49/user/mo (annual)              |
| **Public rating**  | 4.4/5 G2 (~628 reviews)                                  | 4.7/5 G2 (~9,300+ reviews)                           |
| **Best for**       | HubSpot teams enriching records + de-anonymizing traffic | Outbound sales, prospecting, agencies                |

## Vendor profile

### Clearbit

*Data enrichment platform · now HubSpot Breeze Intelligence · credit-based*

Clearbit is a B2B data enrichment and website-visitor-identification platform. HubSpot acquired it in late 2023, and as of 2024 it is no longer a standalone product: its capabilities now ship as Breeze Intelligence inside HubSpot. It enriches records with firmographic, technographic, and demographic attributes pulled from 250+ sources, and its Reveal capability de-anonymizes company website visitors. All the free Clearbit tools (Platform, Connect, TAM Calculator, Weekly Visitor Report, free Slack integration) were shut down April 30, 2024, and the independent API access it once offered is discontinued. It now functions only inside HubSpot.

- **Vendor:** Clearbit (HubSpot Breeze Intelligence)
- **Status:** No standalone product since 2024; HubSpot-only
- **Database:** ~200M+ contacts, ~20M+ companies
- **Platform:** Web app (inside HubSpot)
- **Pricing model:** Paid HubSpot subscription + Breeze Intelligence credits
- **Starting price:** ~$75/mo minimum (HubSpot Starter + 100 credits, annual)
- **Public rating:** 4.4/5 G2 (~628 reviews)

### Apollo.io

*All-in-one prospecting + sales engagement · web app + Chrome extension · per-seat*

Apollo.io is an all-in-one prospecting and sales-engagement platform. It pairs a large B2B contact database with native outreach: email sequences, a built-in US dialer with call recording, and LinkedIn workflows. Its database spans 275M+ contacts and roughly 73M companies (230M+ verified), with filterable search and AI accuracy scoring on records. It is CRM-agnostic, syncing bidirectionally with Salesforce and HubSpot and connecting to Pipedrive, Zoho, Gmail/Outlook, Zapier/Make, Slack, and Gong. It carries the higher G2 rating of the two on an order of magnitude more reviews.

- **Vendor:** Apollo.io
- **Category:** Prospecting database + sales engagement
- **Database:** 275M+ contacts, ~73M companies (230M+ verified)
- **Platform:** Web app + Chrome extension
- **Pricing model:** Per-user tiered; free plan available
- **Starting price:** $0 free; paid from $49/user/mo (annual)
- **Public rating:** 4.7/5 G2 (~9,300+ reviews); 4.5/5 Capterra (~396 reviews, as of July 2026)

## Pricing: what you'll actually pay

Pricing is verified from public sources as of 2026. The two models are not directly comparable: Clearbit is a credit add-on that requires a paid HubSpot subscription, while Apollo is per-user with a free tier. Verify current terms live before purchase.

|                             | Clearbit                                                                      | Apollo.io                                                                              |
|-----------------------------|-------------------------------------------------------------------------------|----------------------------------------------------------------------------------------|
| **Entry point**             | ~$75/mo minimum ($30 HubSpot Starter + $45 for 100 credits, annual)           | $0 Free; Basic from $49/user/mo (annual)                                               |
| **Typical operating range** | $45/mo per 100 credits on top of a paid HubSpot plan                          | $49 to $119/user/mo (Basic to Organization, annual)                                    |
| **Full-capability tier**    | Scales with HubSpot plan + credit volume                                      | Organization, $119/user/mo (min 3 users)                                               |
| **Free plan / trial**       | No standalone free tools (shut down April 30, 2024)                           | Free plan: 50 AI credits, basic access, up to 2 sequences                              |
| **Pricing model**           | Credit-based add-on inside HubSpot; credits expire every 30 days, no rollover | Per-user tiered; monthly billing ~15 to 25% higher than annual                         |
| **Real-world cost note**    | Independent standalone API ($99 to $499/mo) discontinued; HubSpot-only        | All-in cost often $150 to $400/user/mo once credit overages + verification factored in |

## Capability comparison

Both platforms touch B2B data, but their overlap is thinner than it looks. Clearbit is built around enrichment and visitor identification inside HubSpot; Apollo is built around searching a contact database and running outreach from the same tool. The gaps show up on outreach, dialing, standalone use, and visitor ID.

| Service                                          | Clearbit                      | Apollo.io                                   |
|--------------------------------------------------|-------------------------------|---------------------------------------------|
| **Data enrichment (firmographic/technographic)** | ✓ (250+ sources)              | ✓ (with AI accuracy scoring)                |
| **Waterfall enrichment**                         | ✕ (single source)             | N/A (single-provider model)                 |
| **Website visitor identification**               | ✓ (formerly Reveal)           | ✕                                           |
| **Form shortening / progressive profiling**      | ✓                             | ✕                                           |
| **Prospecting / filterable search**              | Limited (enrichment-oriented) | ✓ (over 275M contacts)                      |
| **Native outreach / email sequences**            | ✕ (relies on HubSpot)         | ✓                                           |
| **Built-in dialer**                              | ✕                             | ✓ (US dialer + call recording, Pro+)        |
| **LinkedIn integration**                         | Via HubSpot ecosystem         | ✓ (Chrome extension + workflows)            |
| **Buyer intent / scoring**                       | Lead scoring in HubSpot       | ✓ (AI-driven scoring, engagement analytics) |
| **Standalone use (no host CRM required)**        | ✕ (HubSpot-only)              | ✓ (CRM-agnostic)                            |

## Decision matrix - who fits which side

| Criterion                                             | Clearbit | Apollo.io |
|-------------------------------------------------------|----------|-----------|
| Enrichment inside an existing HubSpot stack           | ✓        | ~         |
| Website visitor identification (de-anonymize traffic) | ✓        | ✕         |
| Form shortening / progressive profiling               | ✓        | ✕         |
| Large searchable prospecting database                 | ~        | ✓         |
| Native email sequences and cadences                   | ✕        | ✓         |
| Built-in dialer with call recording                   | ✕        | ✓         |
| CRM-agnostic (Salesforce, HubSpot, Pipedrive, Zoho)   | ✕        | ✓         |
| Usable without a host CRM                             | ✕        | ✓         |
| Free plan to start                                    | ✕        | ✓         |
| Deepest verified review pool                          | ~        | ✓         |

*Check = clear edge. Tilde = capable but not the stronger pick. Cross = outside the model.*

## Strengths & tradeoffs

Both tools handle B2B data competently, but they draw their limits in different places, and each side wins rows the other does not.

| Axis                     | Clearbit                                                                                     | Apollo.io                                                                               |
|--------------------------|----------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|
| **Primary purpose**      | Data enrichment + website visitor identification                                             | Prospecting database + sales engagement in one tool                                     |
| **Database size**        | ~200M+ contacts, ~20M+ companies                                                             | 275M+ contacts, ~73M companies (230M+ verified)                                         |
| **Enrichment depth**     | Firmographic, technographic, demographic via API in milliseconds; 250+ sources               | Enrichment with AI accuracy scoring; single-provider model                              |
| **Waterfall enrichment** | None (single source; a miss returns nothing)                                                 | Not applicable (single-provider database)                                               |
| **Visitor ID**           | Yes (formerly Reveal)                                                                        | Not a core focus                                                                        |
| **Outreach**             | None native; relies on HubSpot                                                               | Email sequences, cadences, built-in US dialer (Pro+)                                    |
| **Standalone use**       | HubSpot-only; no independent API since 2024                                                  | CRM-agnostic; runs on its own or alongside a CRM                                        |
| **Data accuracy**        | Reliable firmographics on US mid-market+; weaker under 50 employees and outside NA/W. Europe | ~80 to 85% email accuracy for US 50+ employee firms; lower on direct-dial and EMEA/APAC |
| **Entry price**          | ~$75/mo minimum (HubSpot + 100 credits, annual)                                              | Free plan; paid from $49/user/mo (annual)                                               |
| **Cost caveat**          | Credits expire every 30 days, no rollover                                                    | All-in cost can reach $150 to $400/user/mo with overages + verification                 |
| **Public proof**         | 4.4/5 G2 (~628 reviews)                                                                      | 4.7/5 G2 (~9,300+ reviews); an order of magnitude larger pool                           |

## Ratings & track record

| Metric         | Clearbit                                                       | Apollo.io                                                        |
|----------------|----------------------------------------------------------------|------------------------------------------------------------------|
| G2 rating      | 4.4 / 5                                                        | 4.7 / 5                                                          |
| G2 reviews     | ~628                                                           | ~9,300+                                                          |
| Capterra       | Listed under Clearbit / Breeze (verify count live)             | 4.5 / 5 (~396 reviews, as of July 2026)                          |
| Status         | HubSpot Breeze Intelligence (no standalone product since 2024) | Independent all-in-one platform                                  |
| Notable signal | Firmographic enrichment + visitor ID inside HubSpot            | Order-of-magnitude larger review base; broad self-serve adoption |

Apollo.io holds both the higher G2 rating (4.7 vs 4.4) and a review pool an order of magnitude larger (~9,300+ vs ~628), giving its score far more statistical depth. Clearbit’s ~628 G2 reviews skew positive (roughly 66% five-star, 26% four-star), and its distinct value sits in enrichment and visitor identification rather than raw scale. Some third-party sources cite 4.8/5 for Apollo on smaller review subsets; the 4.7/5 figure here is from the main G2 product page with the largest sample. Ratings and review counts drift over time, so confirm the live G2 and Capterra pages before relying on them.

* * *

*Both tools’ data is sourced from publicly available information as of July 2026. Prices, ratings, and product packaging change (Clearbit now ships only as HubSpot Breeze Intelligence), so verify directly with each vendor before buying. This comparison is independent; we take no affiliate or referral fees from either.*

## Frequently asked questions

### What is the difference between Clearbit and Apollo.io?

Clearbit (now Breeze Intelligence inside HubSpot) is a data enrichment and website-visitor-identification layer: it fills in firmographic and technographic detail on records and de-anonymizes company traffic. It has no native outreach and works only inside HubSpot. Apollo.io is an all-in-one prospecting and sales-engagement platform: a large searchable contact database plus email sequences, a built-in dialer, and LinkedIn workflows, and it is CRM-agnostic. Clearbit is enrichment-first; Apollo is prospecting-and-outreach-first.

### Is Clearbit better than Apollo.io?

Neither is better in the abstract. Clearbit is better for HubSpot teams that need to enrich inbound records and identify anonymous website visitors, with strong firmographic accuracy on US mid-market and larger companies. Apollo.io is better for outbound sales and prospecting teams that want a large searchable database plus built-in sequencing and dialer in one tool, across Salesforce, HubSpot, Pipedrive, or Zoho. The right pick depends on whether you need enrichment inside HubSpot or an all-in-one prospecting stack.

### Which is cheaper, Clearbit or Apollo.io?

They price differently, so the answer depends on use. Apollo.io starts free and its paid tiers begin at $49/user/mo (annual). Clearbit has no standalone product; it requires a paid HubSpot subscription plus Breeze Intelligence credits, with a practical entry around $75/mo ($30 HubSpot Starter + $45 for 100 credits, annual), and credits expire every 30 days with no rollover. For teams not already on HubSpot, Apollo is the lower floor; for HubSpot customers, Breeze rides on the subscription they already pay for.

### Does Clearbit still work as a standalone tool?

No. HubSpot acquired Clearbit in late 2023, and as of 2024 it is no longer a standalone product. Its capabilities ship as Breeze Intelligence inside HubSpot only. The independent API access it once offered ($99 to $499/mo) is discontinued, and all free Clearbit tools were shut down April 30, 2024. Teams not on HubSpot are effectively locked out.

### Does Apollo.io include a dialer and email sequences?

Yes. Apollo.io includes native email sequences and cadences across paid plans, and a built-in US dialer with call recording from the Professional tier ($79/user/mo annual) and above. This is a core difference from Clearbit, which has no native outreach and relies on HubSpot for engagement.

### How accurate is Apollo.io data compared to Clearbit?

Both are strongest on US-based companies with 50+ employees. Apollo.io reports email accuracy around 80 to 85% for that segment, with lower accuracy on direct-dials and EMEA/APAC, and raw unverified lists can bounce at 25 to 35% if not filtered to verified records. Clearbit’s firmographic data is reliable on US mid-market and larger companies but weaker on companies under 50 employees and outside North America and Western Europe, with contact-level emails and phones less reliable than its firmographic data. Verify against your own target segment before committing.

## Sources and references

01. [Clearbit reviews & rating (G2)](https://www.g2.com/products/clearbit/reviews) (accessed July 2026)
02. [Clearbit / Breeze review 2026 (MarketBetter)](https://marketbetter.ai/blog/clearbit-review-2026/) (accessed July 2026)
03. [Clearbit pricing (Cognism)](https://www.cognism.com/blog/clearbit-pricing) (accessed July 2026)
04. [Clearbit pricing guide (Cleanlist)](https://www.cleanlist.ai/blog/clearbit-pricing-guide) (accessed July 2026)
05. [Clearbit review & features (SyncGTM)](https://syncgtm.com/blog/clearbit-review) (accessed July 2026)
06. [How Clearbit works (Prospeo)](https://prospeo.io/s/how-does-clearbit-work) (accessed July 2026)
07. [Apollo.io reviews & ratings (G2)](https://www.g2.com/products/apollo-io/reviews) (accessed July 2026)
08. [Apollo.io reviews (Capterra)](https://www.capterra.com/p/158696/Apollo/reviews/) (accessed July 2026)
09. [Apollo.io pricing (PhantomBuster)](https://phantombuster.com/blog/ai-automation/apollo-pricing/) (accessed July 2026)
10. [Apollo.io integrations](https://www.apollo.io/product/integrations) (accessed July 2026)
11. [Apollo.io review 2026 (SalesQuants)](https://salesquants.com/apollo-io-review-2026-the-best-all-in-one-outbound-tool-if-you-can-live-with-imperfect-data/) (accessed July 2026)
12. [Apollo.io integrations (UpLead)](https://www.uplead.com/apollo-io-integrations/) (accessed July 2026)