6sense vs Apollo: intent data versus contact data

6sense has no seat price to publish. Apollo does: $49 per seat per month.

6sense publishes no subscription price for its platform: the only dollar figures it names anywhere belong to its advertising module, a $100 minimum campaign budget, a $1.00 minimum CPM, and a 15%-18% data and service fee taken out of ad spend. Apollo instead lists $49 per seat per month for its first paid tier, billed annually. Scope compared, criterion by criterion. Checked 14 September 2026.

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6sense vs Apollo: scope compared, criterion by criterion — checked September 14, 2026
6senseApollo
What each one covers
Its core job
6sense positions itself as an "Intelligence for Agentic GTM" platform (as of 09/14/2026), turning B2B buying signals into intelligence for revenue teams.A filterable B2B contact database, claimed at over two hundred forty million verified contacts and thirty million companies, with no stated measurement date.
What it also does, more lightly
The prospecting module is the AI Email Agent (as of 09/14/2026): emails generated from buying signals and brand voice, plus a Chrome extension for contacts. Not a full multichannel sequencer.Deal management, call recording, and automated workflows exist but are capped: from two workflows per team on Free to five hundred on Organization.
What it does not do at all
Outside email, no cold-outreach channel is published (as of 09/14/2026): no phone, SMS or LinkedIn on the product page or Platform menu, with no tier unlocking them.No European hosting option is offered: the DPA names only US data centers, and no alternative region appears on the security page.
If you only take this one
What you give up
What 6sense alone lacks (as of 09/14/2026): a multichannel sequencer — email and display are published, no calling, SMS or LinkedIn — hence Outreach and Salesloft as "Sales Engagement" partners.Bulk extraction capacity: even on the most expensive plan, a selection tops out at ten thousand records at a time, versus twenty-five on the free plan.
The workaround, and what it costs
Documented workaround (as of 09/14/2026): plug in Outreach or Salesloft ("Sales Engagement & Productivity," dedicated integration page) or the Chrome extension. Cost unquantified: no price published.Moving to the Organization plan raises selection to ten thousand records: one hundred nineteen US dollars per seat per month, three-seat minimum, billed annually.
The point where it stops being enough
The threshold is an event, not a volume (as of 09/14/2026): once the cadence leaves email, the Chrome extension adds contacts to cadences via SalesLoft or Outreach.Bulk import is indexed to annual spend: one hundred thousand rows per week from one thousand dollars, ten million from one hundred thousand dollars.
If you take both
What it exposes to connect
Five named APIs (as of 09/14/2026), including Company Firmographic and People Search, documented at api.6sense.com/docs; native integrations to Salesforce, HubSpot, Outreach, Salesloft.A REST API with scoped keys, an OAuth 2.0 authenticated MCP server at mcp.apollo.io, CSV import and export, and bidirectional CRM sync.
Which one becomes the source of truth
Data matching (as of 09/14/2026) uses four identifiers (domain, country, name, HQ) linking the CRM to the "MCD" database, then writes enriched records back to the customer.The CRM. The perpetual license attaches to contact data incorporated into your own systems, and platform access ends immediately upon termination.
What the tool answers
What it measures or produces
As of 09/14/2026 6sense captures "one trillion signals" daily in its Signalverse; its Sales Intelligence page separately states "500B+ Intent Signals Analyzed Monthly."Apollo produces verified B2B contact data — emails and phone numbers — plus outbound sequences, a dialer, and lead scores, all metered as credits per action.
The job it equips
Roles tooled (as of 09/14/2026): the revenue/ABM marketer (advertising, workflows) and the seller/BDR (account research, buying-group mapping, prioritization, alerts).The outbound SDR: account search, contact reveal, multichannel sequences, and outbound calling all live in one seat-based interface.
What it cannot tell you
Structural limit (as of 09/14/2026): intent data comes from the online trail buyers leave; whatever happens off that web (calls, meetings, internal exchanges) produces no signal and stays invisible.Apollo publishes aggregate monthly refresh volumes but never the verification date of any individual record, and none of those figures carries a publisher date.
Cold outreach
Channels covered
The only outbound channel named (as of 09/14/2026): email (6sense, Gmail, Outlook) and display advertising. LinkedIn, phone and SMS are absent: no multichannel sequence is published.Automated and manual email, calls via built-in dialer, LinkedIn and free-form tasks. LinkedIn steps are manual tasks to be completed, not automated sends.
Mailbox warm-up
No mailbox warm-up is published (as of 09/14/2026): the AI Email Agent page describes only the sending-provider choice, with no warm-up included, optional, or costed.Available but not native: provided by a third party, Warmbox.ai. One mailbox per seat on paid plans; each additional mailbox costs 200 credits per 30-day period.
Personalization
Generative personalization, not a variable list (as of 09/14/2026): the agent combines intent, company/people data, brand voice and CRM history. No merge variables or per-credit charge.Dynamic variables with nested conditional logic, comparators and case modifiers. AI research consumes one run per enrichment field, per saved contact.
Reply detection
On replies (as of 09/14/2026), the agent reads, replies with context, loops in the right rep, and follows up naturally. Specific cases (auto-reply, unsubscribe) are not named.Default rules distinguishing a human reply from an out-of-office: contact marked finished on reply, paused on out-of-office reply, resuming if a return date is detected.
Where the contacts come from
Contacts come from the vendor's own built-in database (as of 09/14/2026): 481M+ profiles published out of 750M+ captured, 111M+ verified emails, 75M+ companies in 200+ countries, unlockable via credits.Three sources: the built-in database, file import, and a Chrome and Edge browser extension working on LinkedIn, Sales Navigator, Gmail, company websites and CRMs.
CRM synchronization
Salesforce sync documented both ways (as of 09/14/2026): inbound integration and "Outbound Sync"/score export. Synced objects and required tier unreadable (JS-loaded).Bidirectional sync with HubSpot, Salesforce or Pipedrive, one CRM connected at a time. The required tier is not named in the publisher's documentation.
Outreach compliance
What is published (as of 09/14/2026) is the vendor's own compliance: legitimate-interest basis, individualized notice, unsubscribe link in its own emails. Nothing is imposed on the customer inside the product.The unsubscribe link is optional and can be switched off by the user. Three GDPR settings can forbid prospecting, sending and tracking towards European residents.
Outbound compliance under US law
Neither TCPA, CAN-SPAM, prior written consent, nor SMS appear in the policy (08/24/2026) or terms (10/03/2023): no compliance tooling is described.Apollo blocks calls to DNC numbers once screening is on (opt-in), but pushes TCPA/CAN-SPAM onto the customer by contract. The email opt-out link is optional, toggleable off, and expires after 47 days. No SMS step exists at all.
The data and how fresh it is
Database size
6sense states (survey date 09/14/2026, undated by the vendor): 750M+ profiles captured, 481M+ published, 111M+ verified emails, 98M+ direct-dial numbers, 75M+ companies across 200+ countries.The publisher states “240M+ contacts and 30M+ companies” on its homepage. No measurement date accompanies this figure, and no counting method is published.
Freshness and verification
Cadence published (as of 09/14/2026): contacts refreshed every 45-60 days, daily firmographic updates, bi-weekly technographic validation; details verified by 15+ sources. No bounce rate or guarantee.Real-time refresh on signal, monthly database checks, seven-step email verification. Two different accuracy rates coexist across the publisher's own pages.
Intent data
Intent data, the core product (as of 09/14/2026): 500B+ signals analyzed monthly, complemented by Bombora, TechTarget, TrustRadius, G2 and Peer Spot. No tier conditions access.Present, but the publisher contradicts itself on the provider and the topic volume. Two official pages give two providers and two incompatible orders of magnitude, and the vendor publishes both.
Phone numbers
6sense states (as of 09/14/2026) 98M+ direct-dial numbers, verified by 15+ sources, billed via data credits. No mobile-coverage rate is published.“Do Not Call” screening against seven countries' national registries, off by default and activatable by an administrator only. Credits are charged even for a listed number.
Credit model
A credit unlocks/exports emails, phone numbers and enriched records (as of 09/14/2026). Monthly rollover and the price of an extra credit are unquantified: help articles have no readable body.Email, mobile and export credits. Renewal on the first day of the billing cycle; expiry at cycle end, no rollover. Annual plans unlock everything at the start of the cycle.
GDPR compliance
Policy updated 08/24/2026: four legal bases for EEA/UK/Switzerland (legitimate interest, consent, legal obligation, contractual obligation), individualized notice to people added to the database.Legal basis invoked: legitimate interests. Email notification of new contacts in the European Union, United Kingdom and Switzerland. Outsourced DPO and named Article 27 representative.
US geographic coverage
No US-specific figure is published (as of 09/14/2026): only global volumes (750M+ captured, 481M+ published, 98M+ phone numbers, 4.2B+ IPs). No European figure either.No US volume published: only undated global totals, 240M+ contacts and 30M+ companies, appear on the pages tested as of 2026-09-07. No regional breakdown at all, so no imbalance to report. The product page sends the buyer to run a search inside a free account instead.
What comes out of it
Export formats
Export exists (as of 09/14/2026) via data credits and a dedicated help article. No format is named (CSV, XLSX...) and no per-tier export cap is published.The documented export format is CSV. The real ceiling is the record selection limit: 25 on Free, 1,000 on Basic, 2,500 on Professional, 10,000 on Organization.
Shareable reports
In-platform reports (as of 09/14/2026): Buying Stage, Funnel Insights, industry reports, real-time dashboards. No scheduled report, public link, or white labeling.Custom reports can be shared per user or team with three permission levels, or set to “Everyone” visibility. No PDF export or scheduled delivery is documented.
API access
The API exists and is publicly documented (as of 09/14/2026). The quota unit is not published: the dedicated article returned only its header, price unstated.Quota is counted in requests per minute, hour, and day, per team: 50/200/600 on Free, 200/400/2,000 on Basic and Professional, 200/600/6,000 on Organization.
What it connects to
Native integrations
No total count of native integrations is published (as of 09/14/2026). Main ones: Salesforce and HubSpot (CRM), Marketo and Eloqua (MAP), plus Outreach and Salesloft (Sales Engagement).The only publisher-stated count, “50+ tools,” appears in the marketplace page's meta description, not on the page itself. Salesforce, HubSpot, and Outreach matter most.
Google tools it connects to
The only Google tool named (as of 09/14/2026) is Google Ads, an audience sync destination from the native DSP. Search Console, Analytics, Sheets, Looker Studio are absent.Per the grid, the Free plan connects Gmail and Microsoft mailboxes; paid plans accept all providers. A Gmail extension ships on all four plans.
Bringing your existing data across
Data migration runs through the customer's CRM, not a competitor import (as of 09/14/2026): activation with field review, then real-time and bulk enrichment on a configurable cadence.CSV import requires at least one of company name, website, LinkedIn URL, or email, and the publisher advises against files over ten thousand rows.
Getting started, and the fine print
Where the data is hosted
Hosting is with AWS (as of 09/14/2026): the SOC 3 report (12/01/2024-11/30/2025) names "AWS US East"; the privacy policy (08/24/2026) allows storage outside the person's country, including the US.The United States. The DPA names outsourced US-based data center providers and frames transfers with the EU Standard Contractual Clauses.
Data residency and regulated cloud
The only US region named (as of 09/14/2026): "AWS US East," cited in the SOC 3 reports for 2023-2024 and 2024-2025. Neither FedRAMP, StateRAMP, GovCloud, HIPAA nor a BAA is mentioned.Apollo hosts in the US with no region named (AWS, Google Cloud, Databricks, Snowflake, OpenAI). Own certs: ISO/IEC 27001, SOC 2 Type II (A-LIGN), CASA Tier 2. FedRAMP, StateRAMP, GovCloud, BAA absent.
Interface languages shipped
No list or count of interface languages is published (as of 09/14/2026): product, pricing and help center in American English ("en" locale). The "40+ languages" concern detection.Apollo announces five interface languages and names only four on the page: English, Spanish, Portuguese, Italian. English is not split US/UK. Help center translated into es-419, it-it, pt-br. No excluded screen documented.
What it costs
The entry price and what it includes
No subscription price is published (as of 09/14/2026): three bundles with no amount, directing to a demo. Only published amount: the advertising module — $100 minimum, $1.00 CPM, 7-day duration.The first paid tier, Basic, costs 49 US dollars per seat per month billed annually, with thirty thousand credits per seat per year granted upfront.
What pushes the bill up
The line item a reader can't compute alone (as of 09/14/2026): data/service fees (typically 15%-18%) deducted from ad spend, overrun tolerated up to 2%. No priced mandatory onboarding.Phone data: one email costs one credit, one phone number costs eight, and the US dialer costs two credits per call minute.
Procurement and invoicing
The only payment method published (as of 09/14/2026): invoicing, monthly for advertising, payment due within 30 days. Trust Center provides a W-9. No self-service purchase path.Net-30 in USD (ToS), late interest 1.5%/month, subscriptions non-cancelable and nonrefundable. Major cards accepted (PayPal, Apple Pay, Google Pay excluded). ACH only for Organization/Custom plans, on request. PO and W-9 absent.

Key takeaways

6sense has no price page, only a demo request

6sense’s pricing section lists three bundles and attaches no amount to any of them, routing every visitor toward a demo instead of a checkout. The only dollar figures the vendor publishes anywhere sit inside its advertising module: a minimum campaign budget of one hundred dollars, a minimum cost per thousand impressions of one dollar, and a minimum campaign duration of seven days. None of that is a seat price, and none of it tells a buyer what the platform itself costs.

Those dollars fund an ad auction, not a software seat

Running a 6sense campaign also means paying a data and service fee, typically fifteen to eighteen percent, deducted directly from the ad budget, with an overrun tolerated up to two percent before it is enforced. The vendor prices no mandatory onboarding on top of that fee. Read plainly, the whole of 6sense’s published pricing describes what it costs to buy media through the platform, not what it costs to license the platform itself.

Apollo prices the seat, then prices what runs on it

Apollo’s first paid tier, Basic, costs forty-nine dollars per seat per month billed annually, with thirty thousand credits per seat granted upfront for the year. Reaching Apollo’s largest bulk-export selection, ten thousand records at once, requires the Organization plan at one hundred nineteen dollars per seat per month with a three-seat minimum, also billed annually. Both figures are seat prices in the ordinary sense; 6sense has none to set beside them.

One vendor invoices only; the other takes a card

6sense’s only published payment method is invoicing, billed monthly for advertising and due within thirty days; its Trust Center supplies a W-9 on request, but no self-service purchase path exists anywhere on the site. Apollo accepts major cards for its paid plans, excluding PayPal, Apple Pay and Google Pay, and reserves ACH for the Organization and Custom tiers, available only on request. Neither vendor documents a purchase-order process or names a dollar threshold that unlocks one.

Apollo prices bulk import by how much you already spend, not by a named tier

Apollo’s bulk-import ceiling rises with annual spend rather than with a plan name: one hundred thousand rows a week become available starting at one thousand dollars of annual spend, and ten million rows a week starting at one hundred thousand dollars. That scale sits outside the four named subscription tiers entirely, priced as its own negotiated line.

Apollo’s own pages disagree about where its intent data comes from

Apollo does publish intent data, but two of its own official pages name two different providers and give two incompatible orders of magnitude for the topics tracked. Apollo publishes both and reconciles neither. The same pattern repeats on accuracy: two different verification accuracy rates coexist across Apollo’s own pages, with nothing explaining which one applies when.

Apollo blocks the call, but not the promise

Apollo’s Do Not Call screening blocks calls to numbers on national registries once an administrator turns it on, off by default. Compliance with TCPA and CAN-SPAM themselves, though, is pushed onto the customer by contract rather than enforced by the product: the email opt-out link is optional and can be switched off, and it expires after forty-seven days regardless. 6sense names neither TCPA nor CAN-SPAM, prior written consent nor SMS, anywhere in its policy or its terms, and describes no compliance tooling of its own.

Frequently asked questions

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jordan@bulldozer-collective.com
Does 6sense publish a subscription price, unlike Apollo?
No: as of 09/14/2026, 6sense publishes no subscription price, its three bundles all pointing to a demo with no amount. The only published amount concerns its advertising module: a 100-dollar minimum, a 1-dollar CPM, over a 7-day duration — that is not a subscription price. Apollo, on the other hand, lists a first paid tier, Basic, at forty-nine US dollars per seat per month billed annually, with 30,000 credits per seat granted upfront each year. Comparing the two vendors on price therefore means asking 6sense for a quote.
Does Apollo contradict itself on its intent data?
Yes: on intent data, two official Apollo pages give two different providers and two incompatible orders of magnitude for the topic volume covered — the vendor publishes both versions without reconciling them. 6sense, for its part, states more than 500 billion signals analyzed monthly, complemented by Bombora, TechTarget, TrustRadius, G2 and Peer Spot, with no tier condition to access it. A buyer comparing the two will need to check for themselves which of Apollo’s two versions applies to their case.
Does each of 6sense and Apollo have a blind spot, geographic or functional?
For 6sense, outside of email, no cold-outreach channel is published as of 09/14/2026: no phone, SMS or LinkedIn appears on the product page or in the Platform menu, and no tier unlocks them. For Apollo, no European hosting option is offered: the data processing agreement names only US data centers, with no alternative region on the security page. The choice depends on whether the missing channel or the data location is a dealbreaker for the buyer.

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