Mailmeteor vs Overloop AI: Cold Email Platform vs Sales Engagement Platform Comparison
Compare Mailmeteor (cold email platform) and Overloop AI (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Mailmeteor is a Gmail and Google Sheets based cold email platform starting free, built for mail merge, AI email writing, and follow-up automation. Overloop AI is a sales engagement platform starting at $69/mo, built around a 450M+ contact database and multichannel email plus social outreach. Choose Mailmeteor for inbox-focused cold email, Overloop AI for coordinated multi-channel outreach.
Key takeaways
- Mailmeteor's entry plan is free while Overloop AI's Starter plan costs $69/mo.
- Mailmeteor offers four pricing tiers (Hobby, Starter, Premium, Professional) compared to Overloop AI's three (Starter, Growth, Enterprise).
- Overloop AI lists a 450M+ B2B contact database along with an email finder and verifier, features Mailmeteor does not list.
- Mailmeteor integrates with Gmail, Google Sheets, and Google Workspace, while Overloop AI integrates with HubSpot, Salesforce, Pipedrive, Zapier, Slack, Calendly, Gmail, and Outlook.
- Mailmeteor's Hobby plan allows 500 emails per month at 50 emails per day, while its Professional plan allows 60,000 emails per month at 2,000 emails per day.
Reviewed and updated September 2, 2026
Mailmeteor vs Overloop AI: Cold Email Platform vs Sales Engagement Platform Comparison
Mailmeteor is a cold email platform; Overloop AI is a sales engagement platform. Whether you need one, the other, or both depends on which part of the workflow you are buying for: cold email outreach on one side, multi-channel sales outreach and engagement tracking on the other. This guide lays out what each vendor publishes.
The Quick Answer
Mailmeteor is a cold email platform for cold email outreach; Overloop AI is a sales engagement platform for multi-channel sales outreach and engagement tracking. By each vendor's own wording, Mailmeteor lists gmail and google sheets integration and ai email writer, and Overloop AI lists ai-powered campaigns and 450m+ prospects database.
Mailmeteor offers a lower entry point at $0/mo compared to Overloop AI at $69/mo.
If your priority is sending campaigns that land in the inbox and generate replies, Mailmeteor is the one built for it; for coordinating outreach across email, phone, and social channels, that is Overloop AI. Many teams run one of each.
Understanding the Core Difference
Mailmeteor is Gmail and Google Sheets-based mail merge and email marketing platform with AI email writer, tracking, and automated follow-ups.
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
Hobby
Starter
Mailmeteor Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Hobby | Free | N/A | 500 emails/month (50 emails/day) |
| Starter | $5.99/mo | stored contacts per plan | 5,000 emails/month (250 emails/day) |
| Premium | $17.99/mo | stored contacts per plan | 30,000 emails/month (1,000 emails/day) |
| Professional | $35.99/mo | stored contacts per plan | 60,000 emails/month (2,000 emails/day) |
Source: Mailmeteor 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
Mailmeteor is more affordable at the entry level ($0/mo vs $69/mo). For teams with tight budgets or those just getting started with cold email outreach and multi-channel sales outreach and engagement tracking, this price difference matters.
Mailmeteor offers 4 pricing tiers compared to Overloop AI's 3, giving you more granularity as you scale.
Mailmeteor includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- Gmail and Google Sheets integration
- AI email writer
- Email tracking and analytics
- Automated follow-up sequences
- Email warmup (Pro)
- Email verification (Pro)
- 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
Mailmeteor Key Features
- Gmail and Google Sheets integration
- AI email writer
- Email tracking and analytics
- Automated follow-up sequences
- Email warmup (Pro)
- Email verification (Pro)
- Remove branding (Starter+)
- Reply detection (Premium+)
- Spintax support
- Custom tracking domain (Pro)
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 Mailmeteor
- Gmail and Google Sheets integration
- AI email writer
- Email tracking and analytics
- Automated follow-up sequences
- Email warmup (Pro)
- Email verification (Pro)
- Remove branding (Starter+)
- Reply detection (Premium+)
- Spintax support
- Custom tracking domain (Pro)
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
Mailmeteor Integrations
Mailmeteor connects with: Gmail, Google Sheets, Google Workspace.
Overloop AI Integrations
Overloop AI connects with: HubSpot, Salesforce, Pipedrive, Zapier, Slack, Calendly, Gmail, Outlook.
Shared Integrations
Both tools integrate with: Gmail.
Integrations listed only by Mailmeteor: Google Sheets, Google Workspace.
Integrations listed only by Overloop AI: HubSpot, Salesforce, Pipedrive, Zapier, Slack, Calendly, Outlook.
Use Case Recommendations
Best Fit for Mailmeteor
- Budget-conscious teams looking for an affordable cold email platform
- Teams that want to start free and scale up as needs grow
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
Best Fit for Overloop AI
- Organizations with complex tech stacks needing broad integration support (8 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
Feature Comparison Summary
| Feature | Mailmeteor | Overloop AI |
|---|---|---|
| Starting Price | Free | $69/mo |
| Top Tier Price | $35.99/mo | Contact Sales |
| Total Features Listed | 10 | 10 |
| Integrations | 3 | 8 |
| Founded | 2018 | 2015 |
Getting Started Checklist
- Define your cold email outreach and multi-channel sales outreach and engagement tracking requirements and monthly budget
- Estimate your expected email sending volume and 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
Mailmeteor serves the cold email outreach side of an outbound stack and Overloop AI the multi-channel sales outreach and engagement tracking side. Mailmeteor 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 Mailmeteor and Overloop AI for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Mailmeteor and Overloop AI?
- Mailmeteor is a Gmail and Google Sheets based mail merge and cold email platform with an AI email writer and automated follow-ups. Overloop AI is a sales prospecting and engagement platform that finds verified B2B contacts from a 450M+ database and runs multichannel email and social outreach campaigns.
- How much does Mailmeteor cost compared to Overloop AI?
- Mailmeteor starts free with its Hobby plan, then Starter is $5.99/mo, Premium is $17.99/mo, and Professional is $35.99/mo. Overloop AI starts at $69/mo for its Starter plan, with Growth at $99/mo and Enterprise available on request.
- Does Mailmeteor or Overloop AI have a free plan?
- Mailmeteor offers a free Hobby plan that allows 500 emails per month, or 50 emails per day. Overloop AI does not list a free tier; its lowest published plan is the $69/mo Starter plan.
- What integrations does Overloop AI support that Mailmeteor does not?
- Overloop AI integrates with HubSpot, Salesforce, Pipedrive, Zapier, Slack, Calendly, and Outlook, none of which Mailmeteor lists. Both tools do integrate with Gmail, while Mailmeteor additionally connects with Google Sheets and Google Workspace, which Overloop AI does not list.
- Should I use Mailmeteor and Overloop AI together?
- Many teams run one of each, since Mailmeteor is built for cold email outreach that lands in the inbox while Overloop AI is built for coordinating outreach across email, phone, and social channels. Which one, or both, you need depends on which part of the workflow you are buying for.
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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