Hexospark vs Overloop AI: Cold Email Platform vs Sales Engagement Platform Comparison
Compare Hexospark (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.
Compare Hexospark (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.
Reviewed and updated September 4, 2026
Hexospark vs Overloop AI: Cold Email Platform vs Sales Engagement Platform Comparison
Hexospark 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
Hexospark 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, Hexospark lists built-in crm and unified inbox, and Overloop AI lists ai-powered campaigns and 450m+ prospects database.
Hexospark offers a lower entry point at $29/mo compared to Overloop AI at $69/mo.
If your priority is sending campaigns that land in the inbox and generate replies, Hexospark 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
Hexospark is Cloud-based cold email and outreach software from Hexact that combines personalized email campaigns at scale, automated follow-up sequences, a built-in CRM for unlimited contacts and a unified inbox, with a browser extension for capturing leads from LinkedIn.
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
Solo
Starter
Hexospark Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Solo | $29/mo | Unlimited contacts; 1 user | Unlimited emails; 1 email inbox; 1GB account storage |
| Team | $98/mo | Unlimited contacts; 1+8 team seats (9 total users); 3 workspaces | Unlimited emails; 10 email inboxes; 10 GB account storage |
| Enterprise | Contact Sales | Custom plan | All the benefits of Team plus team training, personalized onboarding, campaign setup and management |
Source: Hexospark 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
Hexospark is more affordable at the entry level ($29/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.
Features Breakdown
- Built-in CRM
- Unified inbox
- Unlimited contacts
- Unlimited emails
- Automate smart follow-ups
- Rotate email accounts inside campaigns
- 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
Hexospark Key Features
- Built-in CRM
- Unified inbox
- Unlimited contacts
- Unlimited emails
- Automate smart follow-ups
- Rotate email accounts inside campaigns
- Write personal icebreakers
- Email template library
- Pipeline management to grow your sales
- 1-Click lead import to CRM and email campaigns
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 Hexospark
- Built-in CRM
- Unified inbox
- Unlimited contacts
- Unlimited emails
- Automate smart follow-ups
- Rotate email accounts inside campaigns
- Write personal icebreakers
- Email template library
- Pipeline management to grow your sales
- 1-Click lead import to CRM and email campaigns
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
Hexospark Integrations
Hexospark connects with: Gmail, SMTP, LinkedIn.
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 Hexospark: SMTP, LinkedIn.
Integrations listed only by Overloop AI: HubSpot, Salesforce, Pipedrive, Zapier, Slack, Calendly, Outlook.
Use Case Recommendations
Best Fit for Hexospark
- Budget-conscious teams looking for an affordable cold email platform
- Enterprise buyers who prefer custom pricing and dedicated support
- 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 | Hexospark | Overloop AI |
|---|---|---|
| Starting Price | $29/mo | $69/mo |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 10 | 10 |
| Integrations | 3 | 8 |
| Founded | N/A | 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
Hexospark serves the cold email outreach side of an outbound stack and Overloop AI the multi-channel sales outreach and engagement tracking side. Hexospark offers a more accessible entry point at $29/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 Hexospark and Overloop AI for current information.
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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