Apollo.io vs Crono (2026)
The decision is whether you need to know where the records came from, and only one of these tells you, including the part that implicates the buyer. Apollo names three sourcing routes rather than hiding behind multiple sources: a contributor network of more than two million people who share their business contacts in the course of using the product, with the specific extracting features named so a buyer can see exactly which surface turns their own mailbox into inventory; publicly available sources; and purchased lists. It accepts controller status over that database, registers as a data broker in four named states, and publishes a notice to the individuals in it. Crono runs a waterfall across ten or more providers to return an address or a number and names none of them, while its own compliance page writes down the obligation that where contact information is obtained through a third party, the source must be specified during the initial contact. One vendor published the uncomfortable half of its own supply chain. The other wrote down the duty and left it there.
- The whole purchase path has to be budgetable. Five tiers publish real numbers and real units, from a genuinely usable free plan through per seat pricing at forty nine, seventy nine and a hundred and nineteen dollars a month annually, with credit allocations, sequence limits and feature gates published per tier and the annual discount quantified.
- Compliance has to be shipped rather than described. Apollo screens its database against multiple do not call registries in product, so the obligation is discharged at the data layer rather than left to the buyer to remember, alongside broker registration in four named states, a published data protection officer, a named European representative and framework certification.
- You want a conformance position on at least one platform. Apollo holds a tier two cloud application security assessment for restricted mail scopes, which is an independently assessed conformance regime with a named platform, and sends through official authorisation on both major mail providers rather than scraped sessions.
- You want the platform callable by machines. Crono publishes a public interface with its own documentation site linked from the main navigation rather than gated behind a sales conversation, and a protocol server presented as letting agents and external tools interact with sales workflows directly, where its counterpart gates programmatic access to the upper tiers and publishes no protocol surface.
- Integration reach matters more than integration count. Native connections span both major systems of record plus a third, two mail providers, two telephony products, and both a workflow automation tool and a data orchestration tool, reaching the layers around the system of record rather than only the system of record itself.
- You want a published position on lawful basis rather than an assertion of compliance. Crono's compliance page states that the regulation cites direct marketing as a likely legitimate interest and that most business to business marketing is protected on that basis if executed thoughtfully, while conceding that poorly targeted campaigns may not qualify.
Plain facts
| Apollo.io | Crono | |
|---|---|---|
| Primary category | Data & Enrichment | Sales Engagement & Outreach |
| Founded | Not published | Not published |
| Headquarters | Not published | London, United Kingdom |
| Website | www.apollo.io | www.crono.one |
Side by Side
| Axis | A Apollo.io |
C Crono |
|---|---|---|
|
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 | ||
|
Integration and Deployment
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| Ecosystem and Integration Depth | ||
| Deployment Model and Data Residency | ||
| Security Certifications and Trust Center | ||
|
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 is the default all in one prospecting and engagement platform for small and mid market buyers, combining a very large business contact database with search filters, multichannel sequencing, a parallel and international dialer, website visitor identification, buyer intent signals and a browser extension, sold product led with a usable permanent free tier. The GTM Tech Index grades it A on data licensing and provenance, the first on that axis in the index: three sourcing routes are named rather than behind multiple sources, including a contributor network of more than two million people, with the specific extracting product features named so a buyer can see which surface turns their own mailbox into inventory. It grades Apollo D on deliverability discipline.
Source: GTM Tech Index, 2026
Crono
Crono is a sales execution platform for business to business revenue teams, combining a seven hundred million contact database with waterfall enrichment across ten or more providers, buying signals and lead scoring, multichannel sequences across email, phone and social messaging, and an agents hub for building agents into outbound workflows. The GTM Tech Index grades it A on ecosystem and integration depth, the deepest integration surface graded outside the enterprise platforms, spanning both major systems of record plus a third, two mail providers, two telephony products, a workflow automation tool and a data orchestration tool, with a public interface documented openly and a protocol server published on the vendor's own homepage rather than announced as a roadmap item.
Source: GTM Tech Index, 2026
Common questions
Is Apollo.io better than Crono?
Whether you need to know where the records came from. Apollo names three sourcing routes, a contributor network of more than two million people who share their business contacts in the course of using the product, publicly available sources, and purchased lists, and it names the specific product features that do the extracting. Crono runs a waterfall across ten or more providers and names none of them. One vendor published the uncomfortable half of its own supply chain. The other wrote down the duty on its compliance page and left it there.
Which one tells you where its data comes from?
Apollo, and the GTM Tech Index grades it A, the first on that axis in the index. It names the contributor network outright, names the two product features that turn a customer's connected mailbox into inventory so a buyer can see exactly which surface does it, accepts controller status over that database, is a registered data broker in four named states, and publishes a notice to the individuals whose details it has added. The hard edge remains: the people whose details are extracted from a customer's mailbox never agreed to anything, and the notice and removal route are the best available answer to a problem the business model creates.
Which one protects my sending domain?
Apollo's is worse on the published record and Crono is less examined rather than better. Apollo holds the first D on this axis in the index, publishing no warmup, placement testing, domain health monitoring, rotation policy, bounce threshold or documented response to reputation degradation, while its own help centre documents why customers see high bounce rates. Crono sends from the operator's own connected mailbox, which is the sound half, and offers three mailboxes per user on the mid tier with no warmup, authentication guidance, bounce threshold or blocklist monitoring described.
Which one addresses outreach compliance?
Apollo, comprehensively, and the GTM Tech Index grades it A on that axis. Registration as a data broker in four named states, a published legal entity and address, an appointed data protection officer with a published contact, a named European representative as the transfer article requires, and framework certification covering three jurisdictions. The shipped control that makes it more than paperwork is in product screening of the database against multiple do not call registries, so the obligation is discharged at the data layer. Crono publishes a real position on lawful basis and no product control enforcing it.
How much do Apollo.io and Crono cost?
Apollo publishes five tiers with real numbers and real units, from a genuinely usable free plan through per seat pricing at forty nine, seventy nine and a hundred and nineteen dollars a month annually, with credit allocations, sequence limits and feature gates published per tier, which the index treats as the benchmark for this axis. Crono publishes named tiers and a detailed set of commercial answers covering credit expiry, seat transfer and cancellation timing, with the tier figures coming from third party reporting because the pricing page declines automated access.
How does the GTM Tech Index grade Apollo.io and Crono?
Both are graded on the same seventeen capability and compliance axes from public sources, at documented depths of sixteen and seventeen. The GTM Tech Index grades Apollo.io A on outreach compliance posture, data privacy posture, data licensing and provenance and commercial transparency, and B on operational evidence, platform terms exposure, ecosystem depth, residency, security certifications and segment coverage, with a D on deliverability discipline. Crono takes A on ecosystem and integration depth and B on autonomy, operational evidence, commercial transparency and segment coverage. 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 Sales Engagement & Outreach page.
Apollo carries the first D on sending discipline in this index and the evidence is largely its own. No warmup, no inbox placement testing, no domain health monitoring, no mailbox rotation policy, no published bounce or complaint threshold and no documented response to reputation degradation, on a platform built for high volume sequencing from the customer's own connected mailbox, which means it is the buyer's domain reputation being spent.
The load bearing evidence is the vendor's own knowledge base, which publishes entries addressing why third party verification vendors flag Apollo's verified emails as invalid, and why customers see high bounce rates from mailboxes connected to Apollo. Independent review consensus across three platforms puts bounce rates at fifteen to twenty five percent against a published accuracy figure of ninety six percent.
Documenting your own most common quality complaint in your own help centre is disclosure almost nobody in this index offers and it is credited on the evidence axis; it does not substitute for the discipline itself. Crono is not better here, only less examined: sending runs from the operator's own connected mailbox, which is the sound half, and three mailboxes per user on the mid tier raise throughput per seat with no warmup, authentication guidance, bounce threshold, blocklist monitoring or placement testing described anywhere.
The shared silence is the training boundary, and at Apollo it compounds rather than merely sits open. A buyer has already accepted one channel by which their data flows outward, since connecting a mailbox feeds business contact data into a shared database served to every other customer including competitors, so whether a second channel exists in which customer records, sequence content or call recordings train models serving other accounts is the sharper question. At Crono the same question is raised by the vendor's own copy, which describes a proprietary model learning from the user, with no statement on training, tenancy or retention anywhere.