Overloop AI vs Reply.io: Sales Engagement Platform vs Cold Email Platform Comparison
Compare Overloop AI (sales engagement platform) and Reply.io (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Overloop AI is a sales engagement platform built for multi-channel outreach across email, phone, and social, starting at $69/mo, while Reply.io is a cold email platform focused on inbox deliverability and reply generation, starting at $59/mo. Teams needing multi-channel coordination should pick Overloop AI; teams focused on cold email should pick Reply.io.
Key takeaways
- Overloop AI's Starter plan costs $69/mo and includes 250 credits per user per month, 1 email account per user, and 3 campaigns.
- Reply.io's Email Volume plan costs $59/mo and includes 1,000 active contacts with unlimited emails.
- Overloop AI lists a 450M+ prospects database while Reply.io lists a 1 billion B2B contacts database.
- Reply.io offers 4 pricing tiers, ranging from $59/mo to $800/mo, compared to Overloop AI's 3 tiers.
- Both platforms integrate with HubSpot, Salesforce, Pipedrive, and Zapier.
Reviewed and updated September 2, 2026
Overloop AI vs Reply.io: Sales Engagement Platform vs Cold Email Platform Comparison
Sales teams building an outbound stack often weigh Overloop AI, a sales engagement platform for multi-channel sales outreach and engagement tracking, against Reply.io, a cold email platform for cold email outreach. They cover different parts of the workflow, so this comparison covers what each one does, what each one costs, and where they overlap.
The Quick Answer
Overloop AI is a sales engagement platform for multi-channel sales outreach and engagement tracking; Reply.io is a cold email platform for cold email outreach. By each vendor's own wording, Overloop AI lists ai-powered campaigns and 450m+ prospects database, and Reply.io lists unlimited email warmup and 1 billion b2b contacts database.
Reply.io offers a lower entry point at $59/mo compared to Overloop AI at $69/mo.
If your priority is coordinating outreach across email, phone, and social channels, Overloop AI is the one built for it; for sending campaigns that land in the inbox and generate replies, that is Reply.io. Many teams run one of each.
Understanding the Core Difference
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.
Reply.io is AI-powered sales engagement platform with 1B+ B2B contacts, multichannel sequences, and AI SDR capabilities.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter
Email Volume
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
Reply.io Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Email Volume | $59/mo | 1,000 active contacts | Unlimited |
| Multichannel | $99/mo | Unlimited active contacts | Unlimited emails; 10 mailboxes |
| Agency Core | $210/mo | Unlimited clients & users | Unlimited mailboxes |
| AI SDR Starter | $800/mo | 1,000 active contacts | Unlimited mailboxes & warm-ups |
Source: Reply.io Pricing
Pricing Analysis
Reply.io offers the lower entry point ($59/mo vs $69/mo). Teams watching their budget will appreciate the savings, especially when starting out.
Reply.io offers 4 pricing tiers compared to Overloop AI's 3, giving you more granularity as you scale.
Features Breakdown
- 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
- Unlimited email warmup
- 1 billion B2B contacts database
- Anti-spam & deliverability suite
- LinkedIn automation (add-on)
- SMS and calls (add-on)
- AI personalization
- and 3 more listed below
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
Reply.io Key Features
- Unlimited email warmup
- 1 billion B2B contacts database
- Anti-spam & deliverability suite
- LinkedIn automation (add-on)
- SMS and calls (add-on)
- AI personalization
- AI SDR capabilities
- Multi-workspace for agencies
- 14-day free trial
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 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
Listed only by Reply.io
- Unlimited email warmup
- 1 billion B2B contacts database
- Anti-spam & deliverability suite
- LinkedIn automation (add-on)
- SMS and calls (add-on)
- AI personalization
- AI SDR capabilities
- Multi-workspace for agencies
- 14-day free trial
Integration Ecosystem
Overloop AI Integrations
Overloop AI connects with: HubSpot, Salesforce, Pipedrive, Zapier, Slack, Calendly, Gmail, Outlook.
Reply.io Integrations
Reply.io connects with: HubSpot, Salesforce, Pipedrive, Copper CRM, Zendesk Sell, Close, Zapier, Make, n8n.
Shared Integrations
Both tools integrate with: HubSpot, Salesforce, Pipedrive, Zapier.
Integrations listed only by Overloop AI: Slack, Calendly, Gmail, Outlook.
Integrations listed only by Reply.io: Copper CRM, Zendesk Sell, Close, Make, n8n.
Use Case Recommendations
Best Fit for Overloop AI
- Teams that need a wide feature set (10 capabilities listed)
- Enterprise buyers who prefer custom pricing and dedicated support
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
Best Fit for Reply.io
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
- SDR teams focused on pipeline generation
Feature Comparison Summary
| Feature | Overloop AI | Reply.io |
|---|---|---|
| Starting Price | $69/mo | $59/mo |
| Top Tier Price | Contact Sales | $800/mo |
| Total Features Listed | 10 | 9 |
| Integrations | 8 | 9 |
| Founded | 2015 | N/A |
Getting Started Checklist
- Define your multi-channel sales outreach and engagement tracking and cold email outreach requirements and monthly budget
- Estimate your expected sequences and engagement actions and email sending volume 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
Overloop AI serves the multi-channel sales outreach and engagement tracking side of an outbound stack and Reply.io the cold email outreach side. Reply.io offers a more accessible entry point at $59/mo, 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 Overloop AI and Reply.io for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Overloop AI and Reply.io?
- Overloop AI is a sales engagement platform focused on multi-channel sales outreach and engagement tracking across email and social, while Reply.io is a cold email platform focused on cold email outreach and deliverability. Overloop AI lists AI-powered campaigns and a 450M+ prospects database, while Reply.io lists unlimited email warmup and a 1 billion B2B contacts database.
- Which is cheaper, Overloop AI or Reply.io?
- Reply.io has the lower entry price at $59/mo compared to Overloop AI's $69/mo starting price. Reply.io also offers 4 pricing tiers ranging up to $800/mo for its AI SDR Starter plan, while Overloop AI has 3 tiers with its top tier requiring you to contact sales.
- Do Overloop AI and Reply.io integrate with the same tools?
- Both tools share integrations with HubSpot, Salesforce, Pipedrive, and Zapier. Overloop AI additionally integrates with Slack, Calendly, Gmail, and Outlook, while Reply.io additionally integrates with Copper CRM, Zendesk Sell, Close, Make, and n8n.
- Which tool is better for multi-channel outreach, Overloop AI or Reply.io?
- Overloop AI is built for coordinating outreach across email, phone, and social channels, making it the better fit for multi-channel sequences. Reply.io does offer LinkedIn automation and SMS and calls, but as add-ons rather than core features, and its core focus remains cold email.
- Can you use both Overloop AI and Reply.io together?
- Yes, the article notes that many teams run one of each since the platforms cover different parts of the outbound workflow. Overloop AI handles multi-channel sales engagement and tracking, while Reply.io focuses on cold email campaigns that land in the inbox and generate replies.
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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