Clearbit vs Apollo.io (2026)

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Weighing a third option?

Not sure either one fits?

We're PipeRocket, a B2B SaaS specialist. If you want an outside read on which way to go, we'll give you an honest one.

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 (~381 to 393 reviews)

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 (~381 to 393 reviews)
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

Clearbit reviews & rating (G2) (accessed July 2026)
Clearbit / Breeze review 2026 (MarketBetter) (accessed July 2026)
Clearbit pricing (Cognism) (accessed July 2026)
Clearbit pricing guide (Cleanlist) (accessed July 2026)
Clearbit review & features (SyncGTM) (accessed July 2026)
How Clearbit works (Prospeo) (accessed July 2026)
Apollo.io reviews & ratings (G2) (accessed July 2026)
Apollo.io reviews (Capterra) (accessed July 2026)
Apollo.io pricing (PhantomBuster) (accessed July 2026)
Apollo.io integrations (accessed July 2026)
Apollo.io review 2026 (SalesQuants) (accessed July 2026)
Apollo.io integrations (UpLead) (accessed July 2026)

Written by Ranjeeth Kumar SEO Manager at PipeRocket

Ranjeeth is a B2B SEO specialist focused on building organic growth engines for SaaS companies. As Manager at PipeRocket Digital, he leads SEO strategy across content, technical, and keyword research — helping clients capture high-intent demand and turn organic traffic into measurable pipeline. With a deep understanding of how SaaS buyers search and convert, Ranjeeth builds scalable SEO programs that compound over time.

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Reviewed by Kamaraj Mathiarasan (Kim) Co-Founder, PipeRocket Digital

Kim is a dedicated SEO expert with over 15 years of experience helping B2B SaaS companies scale their organic presence. As Co-Founder of PipeRocket Digital, he focuses on high-impact SEO strategies, comprehensive content marketing, and revenue-focused optimization. Passionate about driving measurable growth, he builds scalable systems that turn organic traffic into meaningful pipeline.

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