Apollo.io vs. ZoomInfo: The Most Popular Sales Platforms Compared

The right sales platform can turn an average sales team into an unstoppable profit-making machine. It can supply qualified leads, streamline actions, and uncover insights crucial for closing sales. With all these functionalities under one roof, you can enjoy a more efficient and effective sales process. 

Still, picking the platform is not a simple task. There are multiple options available and it’s easy to become overwhelmed or make the wrong choice, which is a waste of your dollars and hours.

While I can’t make the decision for you, I can help you reach it faster by condensing all key information and sharing my uncensored opinions. In this article, I’ll tackle two celebrated platforms—Apollo.io and ZoomInfo, and explore their features, data, user experience, pricing, and reviews.

As a bonus tip, I’ll also introduce a simple and free tool that can take your prospecting to the next level and be used with both platforms.

Now, let’s get this Apollo.io vs. ZoomInfo duel underway.

In a hurry? Here's a comparison table that summarizes the key facts.

# Feature Apollo.io ZoomInfo
1 Best for SMBs and growing sales teams that want an affordable all-in-one sales platform Enterprise sales organizations that need premium data, strong US phone coverage, and advanced GTM intelligence
2 Database size 128M+ email addresses, 144M+ phone numbers, and 30M+ global company profiles. 300M+ email addresses, 135M+ phone numbers, and 100M+ global company profiles
3 Email accuracy Strong, with real-time verification Very strong, especially for US enterprise contacts
4 Phone/mobile data accuracy Good global coverage Industry-leading US direct dials and mobile numbers
5 LinkedIn extension Yes Yes
6 Outreach automation Built-in sequences, AI-assisted workflows, dialer SalesOS workflows and multichannel automation
7 Intent data Native buying intent and website activity Advanced first- and third-party intent with optional add-ons
8 Free plan Yes Limited free community edition
9 Starting price Paid plans start at $49/user/month (annual billing) Custom pricing; industry estimates typically start around $15,000/year

Apollo.io vs. ZoomInfo: The Basics

Apollo.io is an end-to-end platform that supports your B2B sales efforts. It provides various tools and data, from contact search to campaign analysis, to help you work more efficiently and close more deals.

Source: Apollo.io

ZoomInfo is also an all-in-one B2B sales platform, but it can boast even more capabilities than Apollo.io. It offers five operating systems, all aimed at securing business growth:

  1. Sales
  2. Marketing
  3. Operations
  4. Talent
  5. DaaS

ZoomInfo Sales is the most popular of the bunch and the equivalent to Apollo.io, so I’ll be focusing on it in my comparison. Like Apollo.io, it can assist you throughout your sales process, including outreach and performance management.

Source: ZoomInfo

Bonus read: Check out my list of best ZoomInfo alternatives.

Key Features 

Both platforms are highly versatile and include a wide range of genuinely useful features. 

My favorite aspects of Apollo.io include:

  • Advanced contact and account search with over 65 filters
  • Outbound engagement automation with AI suggestions
  • Meeting and deal management dashboards
  • Conversation intelligence
  • Campaign performance analytics and rep feedback

Apollo.io also has a Chrome extension, which allows you to prospect leads via LinkedIn. The platform offers around 15 pre-built integrations and an API in case you want to build your own.

Source: Apollo.io

ZoomInfo’s best features include:

  • Contact tracker and search with over 300 company attributes
  • Custom Salesflows for multi-channel prospecting and outreach
  • Conversation intelligence
  • ZoomInfo Copilot, a versatile AI solution that assists in decision-making and writing
  • Enhanced email analytics with recommendations

ZoomInfo has a Chrome extension, as well as a mobile app in case you need to get work done while on the go. Integration-wise, ZoomInfo has over 50 pre-built connections and an API.

Source: ZoomInfo

AI Features

Both Apollo.io and ZoomInfo use AI to reduce manual work, but they take different approaches.

Apollo AI focuses on helping reps execute faster. It recommends prospects, generates personalized emails, summarizes conversations, builds sequences, and suggests next steps throughout the sales workflow. The emphasis is on making outbound prospecting more efficient for individual sellers.

ZoomInfo Copilot acts more like an enterprise GTM assistant. Beyond drafting emails, it combines buyer intent, CRM activity, conversation intelligence, and account data to recommend which accounts deserve immediate attention and why. Teams already running complex sales motions generally get more value from Copilot because it works across multiple revenue functions instead of just outbound prospecting.

If your goal is faster day-to-day prospecting, Apollo AI is usually sufficient. If you need AI-assisted account prioritization across large enterprise teams, ZoomInfo Copilot offers broader capabilities.

Database Size and Quality

Apollo.io and ZoomInfo are industry leaders when it comes to data coverage. They have huge global B2B contact databases:

Database Apollo.io ZoomInfo
Email addresses 128 million 300 million
Phone numbers 144 million 135 million
Company profiles 30 million 100 million

*Verified June 2026 from https://www.apollo.io/product/b2b-data & https://www.zoominfo.com/data

Besides contact information, the platforms can provide you with the following data:

  • Demographic
  • Firmographic
  • Behavioral
  • Website visitors

ZoomInfo and Apollo.io claim to be compliant and have complex data verification systems of the highest standard. Apollo.io validates data in real time, and ZoomInfo monitors and updates it as soon as it detects a change. 

From my experience, the majority of their data is on-point, but I did come across a decent amount of inaccurate and outdated contacts on both platforms. After checking user reviews, I can say that this is a shared experience among many customers. 

On G2, the data accuracy isn’t 10/10 for either but 8.3/10 for Apollo.io and 7.7/10 for ZoomInfo. Reviews also claim that ZoomInfo has stronger phone data for US enterprise direct dials, while Apollo is more accurate for international leads. 

Keep in mind that some errors are bound to happen with any platform. It’s impossible to be 100% correct—people go through changes all the time. Still, I believe platforms of this caliber should have stricter and more frequent checks and maintain higher data accuracy.

Bonus read: Find out how ZoomInfo stacks up against UpLead.

User Experience

Due to their extensive features, both platforms were a bit difficult to navigate the first time. Thankfully, they provide excellent learning resources, so I was able to figure them out relatively quickly. Once I did, I realized how well-thought-out and user-friendly they are—the interfaces are actually quite similar.

Source: Apollo.io

With Apollo.io, I particularly liked how organized the reports and search results are. ZoomInfo impressed me the most with its seamless integrations.

I also LOVE that they both provide many opportunities for automation, allowing me to skip all the boring busywork and save time. 

For example, Apollo.io can automate tasks such as list-building and intent-triggered sequencing. It offers pre-made automations, i.e., “plays,” but it also lets you create your own. ZoomInfo can also trigger sequences, allowing you to build multi-step, multi-channel campaigns and run A/B tests.

I didn’t personally encounter the customer support of either platform, but reviewers generally praise it. 

Source: ZoomInfo

Pricing and Plans

Apollo.io offers four pricing plans, catering to companies of all sizes:

  1. Free
  2. Basic: $49/user/month*
  3. Professional: $79/user/month
  4. Organization: $119/user/month

*All prices pertain to the annual billing model. Pricing last verified June 2026.

I was pleasantly surprised to learn how generous the offering on the free plan is. While it does have limitations, it comes with all of the platform’s basic functionalities and even API integrations and conversation intelligence. These are usually locked behind steep paywalls. 

Apollo.io also has a free 14-day trial for the Basic and Professional plans.

ZoomInfo isn’t transparent about its pricing and offers custom plans. To get an estimate and start planning your budget, you’ll have to reach out to the sales team first.

The cost depends on various factors, such as the number of features, credits, and licenses you need. Some features, such as real-time intent data, are considered add-ons and charged separately.

If you want to take full advantage of ZoomInfo, you may need to set aside anywhere from a couple of thousand to tens of thousands of dollars. While it’s not the cheapest option on the market, Apollo.io is way more accessible than ZoomInfo, making it more suitable for small businesses.

It’s also worth noting that both Apollo.io and ZoomInfo have mandatory one- to two-year contracts for most of their customers.

ZoomInfo Pricing Reality Check

Unlike Apollo, ZoomInfo doesn't publish its pricing, making it difficult to compare costs upfront. However, based on industry pricing analyses, here's what different team sizes typically pay for ZoomInfo compared to Apollo.io:

# Team Size Typical ZoomInfo Annual Cost Apollo.io's Cost in Comparison
1 Small team (1–5 users) ~$15,000/year Free to ~$1500/year
2 Mid-market (5–20 users) ~$25,000–$35,000/year ~$5,000–$15,000/year
3 Enterprise (20+ users) ~$40,000–$60,000+/year ~$16,000+/year

But those figures are only the starting point. Many growing teams discover that the base subscription doesn't include every capability they need.

For example, while a small team might get by with the core contact database and prospecting features, mid-market sales teams often add Intent Data to prioritize in-market accounts, additional export credits as prospecting volume grows, and Engage for sales automation. 

Also, larger enterprise organizations commonly add Chorus for conversation intelligence, Enrich for CRM enrichment, Global Data for international coverage, and higher credit allowances. And all of these add-ons are priced separately, further increasing the overall cost.

If you want to take full advantage of ZoomInfo, you may need to set aside anywhere from a couple of thousand to tens of thousands of dollars. While it’s not the cheapest option on the market, Apollo.io is way more accessible than ZoomInfo, making it more suitable for small businesses.

Bonus read: We also have an in-depth ZoomInfo vs. RocketReach comparison.

User Reviews

Check out how users have rated Apollo.io and ZoomInfo on popular review sites:

Platform ZoomInfo (Sales) Apollo.io
G2 4.5/5 (9,106 reviews) 4.7/5 (9,673 reviews)
Capterra 4.1/5 (319 reviews) 4.5/5 (395 reviews)
Trustpilot 1.7/5 (319 reviews) 3.0/5 (1180 reviews)
TrustRadius 8.2/10 (1,877 reviews) 8.5/10 (640 reviews)

*Last verified June 2026

Users liked their breadth of data and features, ease of use, and powerful automation capabilities of both platforms. As for the negatives, the most commonly reported ones were data quality issues, difficulty of initial setup, and the high costs.

Here’s a table summing up my opinions and user reviews:

Platform

Platform
Pros Cons
ZoomInfo
  • Large contact database

  • Wide range of features

  • Many automation possibilities

  • User-friendly platform

  • Excellent customer support

  • Custom pricing

  • Occasional data inaccuracies

  • Steep learning curve

  • Highly expensive

Apollo.io
  • Large contact database

  • Wide range of features

  • Many automation possibilities

  • User-friendly platform

  • Excellent customer support

  • More affordable

  • Free plan

  • Occasional data inaccuracies

  • Steep learning curve

Which Option Is Best For Your Business?

Both platforms are excellent, but they're built for slightly different buyers. 

Choose Apollo.io if you:

  • Run a startup or SMB sales team
  • Want transparent, predictable pricing
  • Primarily run email-led outbound campaigns
  • Prefer an all-in-one prospecting and engagement platform
  • Want strong functionality without enterprise-level costs

Choose ZoomInfo if you:

  • Sell into enterprise organizations
  • Rely heavily on phone outreach and direct dials
  • Target senior US decision-makers
  • Need advanced intent data and account intelligence
  • Already operate a mature enterprise GTM technology stack

That way, you are starting with a tool that’s designed to support your existing workflow and fits right into how you already operate.

ZoomInfo vs. Apollo.io: Final Thoughts

Apollo.io and ZoomInfo are well-established platforms with powerful capabilities and excellent reviews. They share many similarities, especially in terms of features and user experience. 

Where they differ is the pricing. With its custom plans and add-ons, ZoomInfo can turn out to be quite an investment. Both platforms are enterprise-friendly, but Apollo.io is the clear choice for small businesses that are still figuring things out.

Don’t worry—I haven’t forgotten about the tip I promised!

Regardless of the platform you choose, you should not miss out on using RB2B to level-up your prospecting. RB2B is the only tool that provides Person-Level Website Visitor Identification—and does so for FREE! 

The tool turns your website visitors into qualified leads, and the data is sent straight to your Slack with minimal effort—and in as little as minutes. Here’s how.

RB2B: The Perfect Companion to Any Sales Platform 

RB2B detects individuals who visit your website and forwards their information directly to your Slack.

Everything is condensed in message form, including the lead’s name, company, job title, email address, and LinkedIn profile. That means you don’t need to deal with any spreadsheets or org charts—you can immediately reach out to the person knowing they’re interested.

As the tool will also inform you which pages the lead visited, you’ll know exactly what interests them. That way, you can personalize your messaging to make it more effective.

You must be thinking—this sounds too good to be true, how is it legal?

I’m happy to report that RB2B is FULLY COMPLIANT with regulations such as the CCPA and CPRA

*GDPR doesn’t apply as the tool detects only traffic within the U.S.

How To Get RB2B

To start using RB2B, you only need to:

  1. Sign up
  2. Validate your email address and fill out basic info
  3. Add RB2B to your website’s header
  4. Integrate RB2B with Slack and turn on alerts

RB2B has two pricing plansfree and Pro. The free version lets you push LinkedIn profiles to Slack and offers 200 monthly credits. If you want additional options, such as other integrations and CSV downloads, you can upgrade to Pro. Not sure if you want to commit? There’s a free 30-day trial at your disposal!

While you’re carefully evaluating whether to invest in Apollo.io or ZoomInfo, get RB2B and start connecting with high-intent leads for free.

Keep reading: Want to learn more? Here’s a list of my other reviews and comparisons:

Featured image source: Artem Podrez

Frequently Asked Questions

1. What Is The Difference Between Apollo.io and ZoomInfo?

Apollo.io is an all-in-one sales engagement platform with prospecting, outreach, and CRM workflows at a more accessible price point. ZoomInfo is built for enterprise GTM teams that need deeper company data, premium phone coverage, and advanced intent signals. Whichever platform you choose, pairing it with RB2B adds real-time, person-level website visitor identification so you know exactly which prospects are already engaging with your business. 

2. Is Apollo.io Better Than ZoomInfo?

It depends on your goals. Apollo.io is typically the better fit for startups and growing sales teams that want transparent pricing, while ZoomInfo is stronger for enterprise organizations that need broader datasets and advanced sales intelligence. RB2B complements both by identifying high-intent website visitors your team can immediately prioritize for outreach. 

3. Which Platform Has Better Data Accuracy? Apollo or ZoomInfo?

Both platforms maintain large, frequently updated databases, but neither guarantees perfect accuracy. ZoomInfo is generally stronger for US direct dials, while Apollo.io performs well for verified emails and international prospecting. RB2B adds another layer of confidence by identifying people who are actively visiting your website right now, giving your team fresh first-party buying signals instead of relying solely on static databases. 

4. Does ZoomInfo Have a Free Plan? 

ZoomInfo offers limited free access through its Community Edition, but most features require a custom enterprise subscription. RB2B provides a more generous free plan, allowing your sales team to start identifying up to 150 website visitors monthly without paying a cent. 

5. Can Apollo.io Replace ZoomInfo? 

For many startups and mid-market businesses, yes. Apollo.io covers prospecting, enrichment, outreach automation, and CRM integrations at a significantly lower cost. Regardless of which platform you choose, add on RB2B to identify the actual people visiting your website so your team can engage buyers already showing intent. 

6. Can I Use RB2B with Apollo.io or ZoomInfo? 

Yes. RB2B integrates seamlessly alongside both platforms, enriching your sales workflow with person-level website visitor identification. While Apollo.io and ZoomInfo help you find prospects, RB2B tells you which prospects are already interested by revealing who is actively browsing your website. 

7. Which Is More Cost-Effective: Apollo.io or ZoomInfo?

Apollo.io is generally the more cost-effective option for startups, SMBs, and growing sales teams thanks to its transparent pricing and generous free plan. ZoomInfo's custom pricing is typically justified for larger organizations that need enterprise-grade data, advanced buying signals, and extensive account intelligence. Whichever platform offers the best value for your business, pairing it with RB2B helps you maximize that investment by identifying the real people already visiting your website, so your team spends less time chasing cold prospects and more time engaging active buyers.

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