
RB2B vs ZoomInfo vs Warmly: Which One Is the Best? [2025]
RB2B vs ZoomInfo - which platform is a better option for businesses looking to improve their lead generation efforts?
Read on and find out as I reviewed both tools in detail, covering everything you need to make an informed decision, including their:
- Core functionality.
- Pricing plans.
- Overall user experience.
- Key advantages and drawbacks.
There’s a bonus for everyone who finds neither platform does the trick for them - an alternative solution that checks some boxes that RB2B and ZoomInfo don’t.
Let’s begin!
RB2B vs ZoomInfo: Features
Whenever I review software, I like to begin with the basics - core features.
This is one of the key factors that helps you determine whether a solution is a good fit for your use case and goals, so there’s no better starting point.
RB2B Features
RB2B is a website visitor identification platform popular for its ability to identify the actual individuals surfing your website - not just companies.
It has several notable features, including:
1. Identifies individual stakeholders visiting your website
Unlike most website traffic tracking tools, RB2B can identify individual website visitors, allowing your SDRs to pinpoint the exact decision-maker looking around your website.

However, there’s a catch. Because of GDPR, RB2B works only on US-based website visitors.
This means that unless your website traffic comes primarily from the US, RB2B won’t be of much use to you.
2. Pushes website visitors’ LinkedIn profiles to your Slack
The moment RB2B identifies a website visitor, it proceeds to send their LinkedIn profile to a designated Slack channel.

As a result, your sales reps will be immediately notified when a warm lead lands on your website and can check out their LinkedIn profiles for relevant information.
This enables them to quickly detect leads that match your ICP and tailor their outreach based on the data on their LinkedIn profiles.
3. Hot Pages
Hot Pages is a feature that provides insight into your visitors’ website sessions, i.e., uncovers their first-party buyer intent.

It tracks how users interact with your website, highlighting the pages they visit, the time they spend on each page, the content they consume, and more.
This helps sales reps identify high-intent leads and prioritize them in their outreach strategies.
ZoomInfo Features
ZoomInfo is a sales platform that combines a vast B2B database with versatile functionality. It aims to provide a comprehensive sales solution for large businesses.
Several features stand out the most in comparison to RB2B, including the following:
1. Extensive B2B database
ZoomInfo is best known for its massive B2B database, which captures data on 260 million+ individual and 100 million+ company profiles and covers over 135 million verified mobile phone numbers.

It provides more than 300 company attributes to enable building highly-targeted lead lists and lets you track relevant changes in key accounts, such as job changes, acquisitions, new technology, etc.
2. Predictive analytics
ZoomInfo offers an advanced AI-powered predictive analytics model that helps you:
- Keep your ICP fresh, relevant, and accurate at all times.
- Detect accounts in ZoomInfo’s vast database that could match your product or services well.

Namely, the platform leverages your historical and real-time data, including demographics, pain points, purchasing behavior, etc., to continuously optimize and update your ICP.
At the same time, it analyzes your CRM data to recognize patterns in won and lost deals and best-performing accounts, enabling you to pinpoint leads that are most likely to convert.
3. Copilot AI assistant
Copilot is ZoomInfo’s AI assistant, which can be used to tackle a wide range of sales processes, including:
- Detecting opportunities.
- Suggesting further actions (e.g., sending an email, connecting on LinkedIn, etc.).
- Providing detailed profile and deal summaries to provide SDRs with a 360-degree view of each.
- Personalizing emails.
- Picking up relevant changes in important profiles and immediately notifying you about them.

With Copilot, you’ll give each sales rep a major productivity boost, as this feature helps them focus their attention and efforts on what matters most from the get-go.
RB2B vs ZoomInfo: Pricing
A software tool’s price - or, better to say, its value for money - is the next significant factor that can tip the scale in its favor or against it.
So, let’s see what the numbers are saying.
RB2B Pricing
RB2B has a free forever plan that provides 150 monthly credits for revealing website visitors.
On it, you also get access to the platform’s Slack integration, meaning that you’ll get visitors’ LinkedIn profiles pushed to a designated Slack channel.
All other features are omitted from the free plan.
So, if you’re a more advanced user that needs to go beyond basic website visitor identification, you can subscribe to one of three paid plans:
- Pro: $149/mo for 300 credits or $249/mo for 600, includes Hot Pages, Hot Leads, all integrations, excluding certain pages, etc.
- Pro+: $349/mo for 1000 credits or $499/mo for 2000, includes everything in Pro, plus traffic insights (but only if you opt for the annual plan) and deep CRM integrations.
- Custom: Custom pricing for users that need more than 2000 visitors identified per month.

Each plan lets you onboard unlimited users.
There’s also a 7-day free trial for the Pro and Pro+ plans.
ZoomInfo Pricing
ZoomInfo opted against publishing the exact prices for its packages.
According to its website, ZoomInfo has three plans - for Sales, Talent, and Marketing teams - all of which have custom pricing and lock you into annual contracts.

These packages differ primarily in the integrations and features they include, as each is designed for a specific user type.
You'll have to contact ZoomInfo's team if you want more detailed information, including a custom quote.
What I can tell you from the get-go, however, is that the price will depend on several factors:
- Features and functionality.
- Number of licenses.
- Credit usage.
- The type of intelligence you need (more robust info such as technographic attributes and org charts will create additional costs).
- Add-ons you want included (e.g., Streaming Intent for revealing buying intent in real-time).
- The integrations you need.
Moreover, according to Vendr, the average price of ZoomInfo Sales for mid-sized and large companies ranges from $50,200 to $161,900, meaning that this platform is most definitely one of the more expensive solutions on the market.
RB2B vs ZoomInfo: What Are the Users Saying?
Time to check what some long-term users have to say about RB2B and ZoomInfo’s overall performance.
RB2B Reviews
TL;DR: RB2B users frequently experience issues with the accuracy of website visitor identification. Many users also find it disappointing that the platform can only be used for US visitors. Finally, numerous users are unsatisfied with the platform’s pricing policy and integrations.

“The main downside is the limited coverage, as it often identifies only a small percentage of visitors, primarily from the US. This limits its usefulness for businesses with a global audience. Additionally, the pricing jump from the free plan to the paid version is quite significant, which might be a hurdle for smaller businesses. Lastly, while they have many integrations, some key ones are still in development, limiting its functionality in more complex tech stacks.” - G2 Review

“Very low coverage and accuracy compared to Clearbit, Leadfeeder, and Apollo.
RB2B identifies mostly very irrelevant contacts at accounts that are not picked up by any of the other three - so in this case, the "net new" is not a good thing!” - G2 Review

“The credit-based pricing model is a drawback. After the free trial of 700 credits, costs jump from about $100/month for 200 credits to nearly $400/month for 700 credits, which can run out quickly depending on traffic.
Additionally, we’ve noticed discrepancies in some profile data—occasionally, the profiles RB2B identifies don’t match when those same visitors fill out forms on our website, making it challenging to trust the accuracy fully.” - G2 Review
ZoomInfo Reviews
TL;DR: ZoomInfo users most often complain about the tool’s pricing, data accuracy, and learning curve. However, most agree it is a powerful sales solution for large businesses in particular.

“It is expensive for larger small businesses looking to grow, especially in rural markets. It is a product that is "over our head" when it comes to need. I just don't think our market had a need for it at this price point. But I believe it would be beneficial for others in larger markets. Take that into consideration when making your choice. The product itself is great. I just don't think it's the right fit for everyone.” - G2 Review

“The tool itself can be a bit difficult to manage with multiple features from Workflows, Websights, formcomplete etc. Nice to have everything in one place, but things can often seem crowded. Aldo Advanced searches can be a nightmare at times. I always struggle to filter out Org Exported Contacts/ Accounts. The SFDC Icon is always glitchy on searches and duplicates always exist no matter what I do.” - G2 Review

“When it comes to the data itself, ZoomInfo says its data is 90% accurate. I would venture a guess that it is closer to 75%. Which is still pretty great considering the hundreds of millions of records they have. If they could fix three key issues: swapping someone’s current job with their last job, merging different people with the same name into one contact, and giving people the same “local” address as the company’s corporate headquarters, their accuracy score would come much closer to that 90%.” - G2 Review
RB2B vs ZoomInfo - Pros & Cons
RB2B
✅ Unlimited users on all plans.
✅ Reveals first-party buyer intent.
✅ Solid free plan for micro businesses and individuals with low website traffic.
❌ Credit-based pricing can lead to costs adding up before you know it.
❌ Limited integrations.
❌ Can identify only US-based website visitors.
ZoomInfo
✅ One of the most comprehensive B2B databases on the market.
✅ Chrome extension for accessing leads’ data on the go.
✅ A wide range of sales and marketing features let you handle various processes from a single point of control.
❌ Very expensive.
❌ Learning curve.
❌ Issues with data accuracy.
Want a More Comprehensive Alternative?
So, what happens if you decide neither platform is what you need?
No worries because Warmly might just do the trick in that case.
Warmly is a signal-based revenue orchestration platform that:
- Identifies website visitors.
- Reveals which of them are most likely to convert right now.
- Lets you automate essential sales processes on top of buying intent signals.
Let’s look at some features that make Warmly so popular among GTM teams worldwide.
Warmly Features
Although the platform boasts a wide range of functionality, I’ll cover the most relevant ones to adequately compare it to ZoomInfo and RB2B.
Feature #1: Identifies website visitors and reveals their buyer intent
Similar to RB2B, Warmly identifies both companies and individuals visiting your website.
Every identified lead is enriched with granular B2B data that helps your reps determine which of them fit your ICP profile and tailor their approach accordingly, including:
- Contact details (company and personal names, email addresses, LinkedIn profiles, phone numbers, etc.).
- Firmographics (location, industry, size, etc.).
- Technographics (the technology and software a company primarily uses).
- Demographics (individual job roles, seniority, etc.).
- CRM data (past interactions with your reps, won and lost deals, former champions, etc.).

However, that’s not all. Warmly also tracks intent data, translating it into actionable insights your reps can leverage to detect leads most likely to convert right now.
Warmly detects several types of intent data, such as:
- First-party intent: This includes intent signals leads left in your channels (website, app, etc.), such as website visits, the specific pages they visited, time spent on high-intent pages, recurring visits, etc.
- Second-party signals: These come from monitoring LinkedIn for things like job change intent, new funding rounds, etc.
- Third-party intent: This includes the intent signals your leads left across the web, such as web searches that include keywords relevant to your product, visits to competitors’ websites or interactions with their ads, etc.

Why is this so important?
With this data at their fingertips, your SDRs can identify and prioritize your hottest leads from the start instead of wasting their efforts on cold or low-value leads.
As a result, you’ll experience more conversions and ROI before you know it.
Check out our product walkthrough to learn more about Warmly’s features in use:
Feature #2: Comprehensive prospecting database
Warmly recently included a static B2B database, Coldly, to help you further improve your prospecting efforts and build targeted lead lists.
Coldly holds data on 200M+ accounts and contacts worldwide and has over 25 built-in filters (with the option for creating custom ones to fit specific business needs and industries) to help you find and reach your ideal customers more easily.

The data is refreshed daily, ensuring that all your B2B data is accurate, relevant, and up-to-date.
Feature #3: Sales automation
Warmly has several automation features to help you put essential sales operations on autopilot and ensure that no high-value lead is missed again.
Firstly, the Orchestrator lets you streamline LinkedIn and email outreach by automatically adding high-intent leads to specific sequences.
It allows you to set up all the essential parameters, enabling you to completely customize it to fit your needs, goals, and target market, including letting you:
- Specify the trigger that sets the sequence in motion (e.g., a visitor goes to a high-intent page, such as pricing).
- Define the criteria the visitor needs to meet to be targeted (e.g., company size, industry, job role).
- Set up the frequency at which you want the workflows to run and the maximum number of people targeted in a single account.
- Decide what action you want the Orchestrator to take (e.g., sending a contextual email, personalized LinkedIn DM, or connection request).

Try it yourself 👇or watch it in action.
Then there’s the AI Chat that leverages the power of AI to engage high-intent leads on your website by:
- Asking them qualifying questions.
- Answering their queries.
- Booking meetings.
- Offering relevant collaterals, etc.

The AI that powers AI Chat is fully trainable, meaning you can tailor it to your specific brand tone of voice and other requirements.
Finally, Warmly’s automated alerts notify sales reps via Slack whenever a high-intent lead lands on your website or takes a high-intent action. This significantly shortens the time to lead, increasing your chances of getting more conversions.

Note: On Warmly’s Business plan and above, you can also automate lead routing using the round-robin method or set up any other criteria by which you want leads to be distributed.
Feature #4: Live lead engagement
Warmly has another trick up its sleeve for users who want to make the most of the traction gained by the intent insights the platform uncovers.
Namely, Warmly lets you engage your leads in a live video call while they’re still on your website.
When you go to the “Warm Calls” section of Warmly’s dashboard, you can see who’s visiting your website and monitor their sessions in real-time.
Once your reps assess the time is right, they can hop on a video call straight from Warmly’s dashboard.
As any sales rep knows, nothing can help you close more deals than one-on-one meetings, so make sure to make the most of it.

Note: The Live Video Chat feature is available only on Warmly’s Enterprise plan.
Try it out here:
Warmly Pricing
Warmly offers a free forever plan that allows you to identify up to 500 companies and individuals visiting your website per month.
In addition to that, you can set up ICP filters to quickly identify high-quality leads and automate basic lead routing.
If you need more, there are four tiers to choose from:
- Micro: Starts at $499/mo when billed monthly or $4,000 when billed annually, includes unlimited seats, 5,000 monthly visitors revealed, first-party intent signals, alerts, and access to Warmly’s prospecting database.
- Starter: Starts at $15,000/year, everything in Micro, plus 10,000 monthly visitors, third-party signals, AI Chat, and CRM syncs.
- Business: Starts at $19,000/year for up to 10,000 visitors or $45,000/year for up to 75,000 visitors, everything in Starter, plus second-party signals, sales orchestration, and lead routing.
- Enterprise: Custom pricing, lets you identify a custom number of visitors, includes everything in Business, plus custom signals and warm calling.

Warmly Reviews
TL;DR: Warmly users agree on several points - the platform is very easy to install and integrate into existing tech systems, uncovers hot leads even on its free plan, and provides many efficient options for engaging leads while their interest is at its peak.

“Warmly has been great for our business. We've been able to identify interested customers using the trial version- and so far have been really happy. Warmly was really easy to implement and I'm very satisfied with the customer support. I think it's a fantastic tool and I'm really happy we found it through a recommendation from a friend!” - G2 Review

“The ability to proactively engage with anonymous website visitors has been a game changer for our team. Warmly's AI-driven autonomous chat seamlessly initiates personalized conversations with prospects while they’re still exploring our site, qualifying leads faster than before. Its capability to de-anonymize visitors, and enrich their profiles ensures that our outreach is always timely and relevant. Integration with Slack is great too. All of this for free.” - G2 Review

- Integration truly only took minutes to do, with minimal knowledge of website systems required.
- Generous free tier means you can get started quickly to see if it works for your business.
- BIG PLUS: Warmly sales team was informative and did not pressure us at all; truly felt like they wanted to do what was right for our business, not just to get us to upgrade. - G2 Review
Warmly Pros & Cons
✅ Identifies companies and individuals visiting your website.
✅ Enriches each identified lead with detailed B2B intelligence and reveals intent data.
✅ Versatile sales orchestration options.
✅ Live sales engagement capabilities.
✅ Reveals who your hottest leads are right now.
❌ Warm calling feature is available only on the Enterprise plan.
Reveal Your Hottest Leads with Warmly
There you have it - a detailed review of RB2B vs ZoomInfo, with Warmly as an additional option for users who need more than the first two platforms have to offer.
So, if you’re looking for a solution that provides versatile functionality, lets you identify and engage hot leads, and offers transparent pricing, Warmly is your best bet.
Sign up for its free plan and start identifying your hottest leads right now.
You can also book a demo with our team to learn how Warmly can enhance your lead generation and conversion strategies at all levels.
Read More
- ZoomInfo Review: Learn more about one of Warmly’s top competitors, ZoomInfo, and what functionality it offers.
- Cognism Review: Check out my review of Cognism, which is a direct competitor of platforms like Clay and Apollo.
- Leadfeeder Review: Learn more about Leadfeeder’s pricing structure, features, customer support, and data quality.
- 6sense Review: Check out my review of 6sense, going over its features, data quality, and integrations.
- Best B2B Data Providers: Find the optimal B2B data platform for your use case.
- Best Lead Intelligence Software: Find the best platform for gaining critical insight into your leads.
- Best GTM Tools: Optimize your GTM strategy with some of the best GTM software on the market today.
Best Sales Intelligence Tools: Look beyond popular options like Apollo and Zoominfo to find the optimal solution for your use case.