Apollo.io vs Overloop AI: Sales Engagement Platform Comparison
Compare Apollo.io and Overloop AI side by side. See pricing, features, and integrations to choose the right sales engagement platform for your needs.
Apollo.io is the better choice for teams wanting an all-in-one platform with a free tier, a 275M+ contact database, and multi-channel sequences across email, phone, and LinkedIn. Overloop AI, starting at $69/mo, fits teams prioritizing a 450M+ contact database and AI-written email plus social campaigns. Budget and required channels determine the right pick.
Key takeaways
- Apollo.io offers a free entry plan while Overloop AI's Starter plan costs $69/mo.
- Apollo.io's database lists 275M+ contacts and companies, while Overloop AI lists a 450M+ prospects database.
- Apollo.io has four pricing tiers (Free, Basic at $49/mo, Professional at $79/mo, Organization at $119/mo) compared to Overloop AI's three tiers (Starter, Growth at $99/mo, Enterprise).
- Apollo.io lists a built-in dialer with call recording and conversation intelligence on Professional plans and above, features not listed by Overloop AI.
- Overloop AI lists Email Warmup, a Conversations Inbox, and a REST API, features not listed by Apollo.io.
Reviewed and updated September 2, 2026
Apollo.io vs Overloop AI: Sales Engagement Platform Comparison
Sales teams evaluating multi-channel sales outreach and engagement tracking tools often narrow their shortlist to Apollo.io and Overloop AI. Both target the same job, but they cater to different workflows and budgets. This comparison covers pricing, features, and integrations so you can pick the right fit.
The Quick Answer
By each vendor's own wording, Apollo.io lists b2b contact and company database (275m+ contacts) and multi-channel sequences (email, phone, linkedin), while Overloop AI lists ai-powered campaigns and 450m+ prospects database. A capability both offer can appear under different names, so read both feature lists below.
Apollo.io offers a lower entry point at $0/mo compared to Overloop AI at $69/mo.
If your priority is coordinating outreach across email, phone, and social channels, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.
Understanding the Core Difference
Apollo.io is All-in-one sales intelligence and engagement platform combining a 275M+ contact database with automated sequences, email outreach, dialer, and AI-powered workflows for prospecting at scale.
Overloop AI is Sales prospecting platform that finds verified B2B contacts and runs personalized email and social outreach campaigns. Includes a 450M+ B2B contact database, an email finder and verifier, and AI-written campaigns and follow-ups.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Free
Starter
Apollo.io Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Free | Free | 900 credits per seat per year, granted monthly |
| Basic | $49/mo | 30,000 credits per seat per year, granted upfront |
| Professional | $79/mo | 48,000 credits per seat per year, granted upfront |
| Organization | $119/mo | 72,000 credits per seat per year, granted upfront |
Source: Apollo.io Pricing
Overloop AI Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $69/mo | 250 credits per month per user | 1 email account per user; 3 campaigns |
| Growth | $99/mo | 500 credits per month per user | 3 email accounts per user; 10 campaigns |
| Enterprise | Contact Sales | 1,000 credits per month per user | Unlimited email accounts; Unlimited campaigns |
Source: Overloop AI Pricing
Pricing Analysis
Apollo.io is more affordable at the entry level ($0/mo vs $69/mo). For teams with tight budgets or those just getting started with multi-channel sales outreach and engagement tracking, this price difference matters.
Apollo.io offers 4 pricing tiers compared to Overloop AI's 3, giving you more granularity as you scale.
Apollo.io includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- B2B contact and company database (275M+ contacts)
- Multi-channel sequences (email, phone, LinkedIn)
- AI-powered email writing and optimization
- Built-in dialer with call recording
- Automated workflows and engagement rules
- A/B testing for email sequences
- and 4 more listed below
- AI-powered campaigns
- 450M+ prospects database
- Verified Email Addresses
- Smart multichannel campaigns (Email + social)
- AI-powered Outreach Followups
- Email Finder & Verifier
- and 4 more listed below
Apollo.io Key Features
- B2B contact and company database (275M+ contacts)
- Multi-channel sequences (email, phone, LinkedIn)
- AI-powered email writing and optimization
- Built-in dialer with call recording
- Automated workflows and engagement rules
- A/B testing for email sequences
- Buying intent signals and job change alerts
- Advanced lead scoring and filtering
- Email deliverability tools and mailbox rotation
- Conversation intelligence (Professional+)
Overloop AI Key Features
- AI-powered campaigns
- 450M+ prospects database
- Verified Email Addresses
- Smart multichannel campaigns (Email + social)
- AI-powered Outreach Followups
- Email Finder & Verifier
- Chrome Extension for LinkedIn
- Conversations Inbox
- Email Warmup
- REST API
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by Apollo.io
- B2B contact and company database (275M+ contacts)
- Multi-channel sequences (email, phone, LinkedIn)
- AI-powered email writing and optimization
- Built-in dialer with call recording
- Automated workflows and engagement rules
- A/B testing for email sequences
- Buying intent signals and job change alerts
- Advanced lead scoring and filtering
- Email deliverability tools and mailbox rotation
- Conversation intelligence (Professional+)
Listed only by Overloop AI
- AI-powered campaigns
- 450M+ prospects database
- Verified Email Addresses
- Smart multichannel campaigns (Email + social)
- AI-powered Outreach Followups
- Email Finder & Verifier
- Chrome Extension for LinkedIn
- Conversations Inbox
- Email Warmup
- REST API
Integration Ecosystem
Apollo.io Integrations
Apollo.io connects with: Salesforce, HubSpot, Pipedrive, Gmail, Microsoft Outlook, LinkedIn, Zapier, Slack, Sendgrid, Outreach, Salesloft, Webhooks API.
Overloop AI Integrations
Overloop AI connects with: HubSpot, Salesforce, Pipedrive, Zapier, Slack, Calendly, Gmail, Outlook.
Shared Integrations
Both tools integrate with: Salesforce, HubSpot, Pipedrive, Gmail, Zapier, Slack.
Integrations listed only by Apollo.io: Microsoft Outlook, LinkedIn, Sendgrid, Outreach, Salesloft, Webhooks API.
Integrations listed only by Overloop AI: Calendly, Outlook.
Use Case Recommendations
Best Fit for Apollo.io
- Budget-conscious teams looking for an affordable sales engagement platform
- Organizations with complex tech stacks needing broad integration support (12 integrations)
- Teams that want to start free and scale up as needs grow
Best Fit for Overloop AI
- Enterprise buyers who prefer custom pricing and dedicated support
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
- Revenue teams coordinating email, phone, and social touches
Feature Comparison Summary
| Feature | Apollo.io | Overloop AI |
|---|---|---|
| Starting Price | Free | $69/mo |
| Top Tier Price | $119/mo | Contact Sales |
| Total Features Listed | 10 | 10 |
| Integrations | 12 | 8 |
| Founded | 2015 | 2015 |
Getting Started Checklist
- Define your multi-channel sales outreach and engagement tracking requirements and monthly budget
- Estimate your expected sequences and engagement actions to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
Apollo.io and Overloop AI both serve the multi-channel sales outreach and engagement tracking market. Apollo.io offers a more accessible entry point, while Overloop AI starts at $69/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit Apollo.io and Overloop AI for current information.
Frequently asked questions.
Frequently asked questions- Which is cheaper, Apollo.io or Overloop AI?
- Apollo.io is cheaper at the entry level, offering a free plan, while Overloop AI's lowest tier, Starter, costs $69/mo. Apollo.io's paid tiers run from $49/mo to $119/mo, and Overloop AI's paid tiers go from $69/mo to $99/mo before its Enterprise tier, which requires contacting sales.
- How big is the contact database in each tool?
- Apollo.io lists a B2B contact and company database of 275M+ contacts, while Overloop AI lists a 450M+ prospects database. Both figures come directly from each vendor's own marketing pages, so they reflect self-reported totals rather than an independent audit.
- Does Apollo.io or Overloop AI have a built-in dialer?
- Apollo.io lists a built-in dialer with call recording among its features, allowing phone outreach within the platform. Overloop AI's listed features do not include a dialer, focusing instead on email and social channels through smart multichannel campaigns.
- What integrations does Apollo.io support?
- Apollo.io connects with Salesforce, HubSpot, Pipedrive, Gmail, Microsoft Outlook, LinkedIn, Zapier, Slack, Sendgrid, Outreach, Salesloft, and a Webhooks API. This gives teams flexibility to plug the platform into existing CRM and outreach workflows.
- Which tool has more pricing tiers?
- Apollo.io has four pricing tiers (Free, Basic, Professional, and Organization), while Overloop AI has three (Starter, Growth, and Enterprise). The article notes this gives Apollo.io more granularity for teams scaling their usage over time.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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