Apollo.io vs GTM Workspace by ZoomInfo (2026)
This is the comparison most prospecting budgets actually run, and the decision is whether you are buying a published price or a data operation built to be queried. Apollo publishes five tiers with real numbers and a free plan, and it answers the outreach rules its product exists to serve: a registered data broker in four named states, an appointed data protection officer and a named European representative. GTM Workspace, the command centre ZoomInfo sells above its data, answers the person in the database more fully than any vendor in the GTM Tech Index, with four verified request workflows on a dedicated subdomain, and it has built a distribution strategy around being queryable by outside agents, selling its Model Context Protocol support as a named product. Both name their sourcing, and both run a contributor programme alongside it. Where each is weakest mirrors that. ZoomInfo documents six packages, two credit allowances and a mandatory bulk credit purchase for pre packaged integrations without a single currency figure, and states no hosting region. Apollo's sequencer carries a D on sending discipline.
- Budget approval needs a number. Apollo publishes a free plan and per seat rates of forty nine, seventy nine and one hundred and nineteen dollars a month billed annually, with credit allocations and sequence limits per tier. ZoomInfo publishes six packages and two credit allowances and no currency figure at all.
- Your compliance team asks about the sending side as well as the data side. Apollo names its data broker registrations in California, Oregon, Texas and Vermont, an appointed data protection officer and its European representative, where ZoomInfo publishes nothing on the regulations governing the outreach its platform generates.
- You need hosting stated before signing. Apollo's processing addendum states the service runs with United States based data centre providers on multi tenant infrastructure. It offers no residency choice and says so plainly, where ZoomInfo's product surface states no region at all.
- Outside agents and warehouses should query the data directly. ZoomInfo sells its Model Context Protocol support as a named product, places its data inside a major consumer assistant, and delivers records into leading warehouse and analytics platforms through interfaces, webhooks and cloud data shares, which is why the GTM Tech Index grades it A on ecosystem depth.
- The person in the database has to be able to act. A dedicated request subdomain runs four verified workflows covering removal, an access report, profile correction and company record correction, a removal request also opts the person out of sale and sharing, and browser opt out preference signals are honoured automatically.
- You want evidence that is filed rather than asserted. ZoomInfo Technologies is publicly listed on Nasdaq, so customer counts and revenue are audited, one review platform carries a rating of 4.5 across more than nine thousand three hundred reviews, and customer results are attributed to named people at named employers.
This comparison is published by GTM Tech Index, an independent research platform that compares go to market software vendors objectively. Apollo.io and GTM Workspace by ZoomInfo are each graded against the same capability taxonomy, from each vendor's own public materials, under the GTM Tech Index verification standard. No vendor pays for placement, and no vendor has reviewed this page. How this evidence is graded
Plain facts
| Apollo.io | GTM Workspace by ZoomInfo | |
|---|---|---|
| Primary category | Data & Enrichment | Data & Enrichment |
| Founded | Not published | 2007 |
| Headquarters | Not published | Vancouver, WA, United States |
| Website | www.apollo.io | www.zoominfo.com/gtm-workspace |
Side by Side
| Axis | A Apollo.io |
G GTM Workspace by ZoomInfo |
|---|---|---|
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AI Capability
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| AI Centrality | ||
| Autonomy and Oversight Model | ||
| AI Disclosure and Model Transparency | ||
| Operational and Outcome Evidence | ||
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Compliance and Risk
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| Outreach Compliance Posture | ||
| Data Privacy Posture | ||
| Data Licensing and Provenance | ||
| Platform Terms Exposure | ||
| AI Safety and Data Stewardship | ||
| Recipient Disclosure and Authenticity | ||
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Integration and Deployment
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| Ecosystem and Integration Depth | ||
| Deployment Model and Data Residency | ||
| Security Certifications and Trust Center | ||
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Commercial and Operational
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| Commercial Transparency | ||
| Exit and Data Portability | ||
| Deliverability and Sending Discipline | ||
| Segment and Market Coverage | ||
The short version of each
Apollo.io
Apollo.io sells a business contact database with sequencing, a parallel and international dialer, website visitor identification and buyer intent signals in one self serve platform, with a permanent free plan and published per seat pricing from forty nine to one hundred and nineteen dollars a user a month billed annually. The GTM Tech Index grades it A on commercial transparency, the benchmark in the index, and A on data licensing, data privacy and outreach compliance: it names three sourcing routes including a contributor network of more than two million people, publishes a processing addendum covering both its controller and processor roles, and is registered as a data broker in four named states. It hosts with United States providers only and discloses that in its addendum. It grades D on deliverability discipline and C on model transparency, naming no model behind the AI Assistant it launched in March 2026.
Source: GTM Tech Index, 2026
GTM Workspace by ZoomInfo
GTM Workspace is the unified account command centre ZoomInfo sells above its data, combining the customer's own system of record with ZoomInfo's company and contact profiles, organisational charts, intent signals, buying group maps and website visitor identification, then applying agents that research accounts, draft follow ups and update fields. ZoomInfo Technologies was founded in 2007, is based in Vancouver, Washington, and is listed on Nasdaq. The GTM Tech Index grades it A on four axes: data licensing, where it names four source classes including an employed research team and a named community contribution programme, data privacy, where a dedicated subdomain runs four verified request workflows, ecosystem depth, where Model Context Protocol support is sold as a named product, and outcome evidence. It grades D on commercial transparency, publishing six packages and their credit mechanics with no currency figure, and states no hosting region.
Source: GTM Tech Index, 2026
Common questions
Is Apollo.io better than ZoomInfo?
It depends on whether you are buying self serve or buying infrastructure. Apollo publishes every price, includes sequencing and a dialer on the same seat, and answers the outreach rules its product serves. ZoomInfo's GTM Workspace carries the deepest ecosystem and the most developed data subject rights in the GTM Tech Index, is publicly listed, and prices only through a sales conversation. Both take A on data licensing and data privacy, so provenance is not what separates them.
Is Apollo.io cheaper than ZoomInfo?
Apollo is the only one of the two that lets you check. It publishes a free plan and per seat rates of forty nine, seventy nine and one hundred and nineteen dollars a month billed annually. ZoomInfo publishes six packages, included credit allowances of seventy five thousand and one hundred and fifty thousand on two of them, and intent topic counts, with no seat rate, credit rate or package price. It also discloses that pre packaged integrations carry a base installation cost and require a minimum bulk credit purchase. Graded by GTM Tech Index against seventeen capability axes from each vendor's own published materials, verified September 21, 2026. No vendor pays for placement.
Where do Apollo.io and ZoomInfo get their data?
Both name their sources, and both grade A on data licensing in the GTM Tech Index. Apollo names three routes: a contributor network of more than two million people sharing contacts through named product features, publicly available sources and purchased lists. ZoomInfo names four source classes: collection across the web with its own technologies, specialist third party providers, community contributors through a named programme, and an employed research team, and its personal information notice enumerates the fields it holds.
Which one handles privacy requests better?
Both grade A on data privacy, and ZoomInfo's request handling is the most developed in the index. Four verified workflows sit on a dedicated subdomain, removal doubles as a sale and sharing opt out, and browser opt out signals are honoured automatically. Apollo's strength is the legal architecture: it explains its controller and processor roles, incorporates a processing addendum with standard contractual clauses into its terms, and publishes a notice telling people their data was added. Graded by GTM Tech Index against seventeen capability axes from each vendor's own published materials, verified September 21, 2026. No vendor pays for placement.
How does the GTM Tech Index grade Apollo.io and GTM Workspace by ZoomInfo?
Both are graded on the same seventeen capability and compliance axes from public sources, at a documented depth of sixteen each. Apollo takes A on commercial transparency, data licensing, data privacy and outreach compliance, and D on deliverability. GTM Workspace takes A on data licensing, data privacy, ecosystem depth and outcome evidence, B on four more, and D on commercial transparency. The index publishes no composite score and declares no winner.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers. The full set for this category is on the Data & Enrichment page.
The shared silence is leaving. Both meter export as a commercial unit: at Apollo ten export credits a month on the free plan, at ZoomInfo a credit consumed on every exported profile, whether from the platform, the browser extension or any interface call. The volume a customer can take out is governed by what it bought rather than what it holds, and neither publishes a post termination retention period or a deletion timeline. The second shared silence is the model layer.
Neither names a model provider for its assistant, agents or email generation, or states whether customer data trains anything. ZoomInfo maintains a page written to tell external systems authoritative facts about the company, and that page does not say which systems the company runs on. On the outreach side the gap belongs to ZoomInfo.
Its platform ships intelligent dialing, automated outreach workflows and generated email, and nothing published names a commercial email statute, a consent standard or a do not call obligation attached to the dialer. The benign reading is that these obligations sit in customer terms rather than on public pages. Ask both in writing what may be retained after termination, and ask ZoomInfo for its TCPA position on the dialer.