Buzz.ai vs GMass: Sales Engagement Platform vs Cold Email Platform Comparison
Compare Buzz.ai (sales engagement platform) and GMass (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Buzz.ai is a sales engagement platform for multichannel outreach across email, LinkedIn, calls and voicemail drops, starting at $79/mo. GMass is a Gmail-based cold email platform with unlimited emails, contacts and campaigns, starting at $29.95/mo. Teams needing multichannel coordination should pick Buzz.ai; teams focused on inbox-based cold email should pick GMass.
Key takeaways
- Buzz.ai's entry plan, Core, costs $79/mo and includes 500 credits per month and 1 seat.
- GMass's entry plan, Standard, costs $29.95/mo and includes unlimited contacts and unlimited emails subject to Gmail limits.
- GMass offers 4 pricing tiers (Standard, Premium, Professional, Teams) compared to Buzz.ai's 3 tiers (Core, AI Employee, Enterprise).
- Buzz.ai integrates with Salesforce, HubSpot, Pipedrive, Calendly, Zapier, and Webhooks, while GMass integrates with Gmail, Google Sheets, Zapier, and Google Workspace.
- Buzz.ai lists multichannel outreach across email, LinkedIn, calls and voicemail drops, while GMass lists working inside Gmail with mail merge personalization and a Spam Solver deliverability tool.
Reviewed and updated September 5, 2026
Buzz.ai vs GMass: Sales Engagement Platform vs Cold Email Platform Comparison
Buzz.ai is a sales engagement platform; GMass is a cold email platform. Whether you need one, the other, or both depends on which part of the workflow you are buying for: multi-channel sales outreach and engagement tracking on one side, cold email outreach on the other. This guide lays out what each vendor publishes.
The Quick Answer
Buzz.ai is a sales engagement platform for multi-channel sales outreach and engagement tracking; GMass is a cold email platform for cold email outreach. By each vendor's own wording, Buzz.ai lists multichannel outreach across email, linkedin, calls and voicemail drops and smart campaigns with ai message drafting, and GMass lists works inside gmail and unlimited emails, contacts, and campaigns.
GMass offers a lower entry point at $29.95/mo compared to Buzz.ai at $79/mo.
If your priority is coordinating outreach across email, phone, and social channels, Buzz.ai is the one built for it; for sending campaigns that land in the inbox and generate replies, that is GMass. Many teams run one of each.
Understanding the Core Difference
Buzz.ai is AI SDR platform that runs multichannel outreach across email, LinkedIn, calls and voicemail drops, sequencing touches by prospect engagement, with built-in data search, enrichment and CRM sync.
GMass is Gmail-based mass email and mail merge platform with unlimited emails, campaigns, and contacts directly inside Gmail.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Core
Standard
Buzz.ai Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Core | $79/mo | 500 credits/mo, 1 seat |
| AI Employee | $695/mo | 5,000 credits/mo, 1 seat |
| Enterprise | Contact Sales | 25,000 credits/mo, 5 seats included |
Source: Buzz.ai Pricing
GMass Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Standard | $29.95/mo | Unlimited | Unlimited (Gmail limits apply) |
| Premium | $39.95/mo | Unlimited | Unlimited (Gmail limits apply) |
| Professional | $59.95/mo | Unlimited | Unlimited (Gmail limits apply) |
| Teams (5 users) | $175/mo | Unlimited | Unlimited (Gmail limits apply) |
Source: GMass Pricing
Pricing Analysis
GMass offers the lower entry point ($29.95/mo vs $79/mo). Teams watching their budget will appreciate the savings, especially when starting out.
GMass offers 4 pricing tiers compared to Buzz.ai's 3, giving you more granularity as you scale.
Features Breakdown
- Multichannel outreach across email, LinkedIn, calls and voicemail drops
- Smart campaigns with AI message drafting
- Campaign creation from a single prompt
- Phone calling and voicemail drops
- Connection booster and InMail booster
- AI targeting
- and 4 more listed below
- Works inside Gmail
- Unlimited emails, contacts, and campaigns
- Mail merge personalization
- Free email verification
- Automated follow-up sequences
- A/B testing
- and 4 more listed below
Buzz.ai Key Features
- Multichannel outreach across email, LinkedIn, calls and voicemail drops
- Smart campaigns with AI message drafting
- Campaign creation from a single prompt
- Phone calling and voicemail drops
- Connection booster and InMail booster
- AI targeting
- Unlimited data enrichment
- Email automation with an AI email service
- Social search across profiles, posts, events and groups
- Residential proxy and link tracking
GMass Key Features
- Works inside Gmail
- Unlimited emails, contacts, and campaigns
- Mail merge personalization
- Free email verification
- Automated follow-up sequences
- A/B testing
- Spam Solver deliverability tool
- Custom tracking links
- Inbox rotation
- API and Zapier access
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 Buzz.ai
- Multichannel outreach across email, LinkedIn, calls and voicemail drops
- Smart campaigns with AI message drafting
- Campaign creation from a single prompt
- Phone calling and voicemail drops
- Connection booster and InMail booster
- AI targeting
- Unlimited data enrichment
- Email automation with an AI email service
- Social search across profiles, posts, events and groups
- Residential proxy and link tracking
Listed only by GMass
- Works inside Gmail
- Unlimited emails, contacts, and campaigns
- Mail merge personalization
- Free email verification
- Automated follow-up sequences
- A/B testing
- Spam Solver deliverability tool
- Custom tracking links
- Inbox rotation
- API and Zapier access
Integration Ecosystem
Buzz.ai Integrations
Buzz.ai connects with: Salesforce, HubSpot, Pipedrive, Calendly, Zapier, Webhooks.
GMass Integrations
GMass connects with: Gmail, Google Sheets, Zapier, Google Workspace.
Shared Integrations
Both tools integrate with: Zapier.
Integrations listed only by Buzz.ai: Salesforce, HubSpot, Pipedrive, Calendly, Webhooks.
Integrations listed only by GMass: Gmail, Google Sheets, Google Workspace.
Use Case Recommendations
Best Fit for Buzz.ai
- Organizations with complex tech stacks needing broad integration support (6 integrations)
- 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 GMass
- Budget-conscious teams looking for an affordable cold email platform
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
- SDR teams focused on pipeline generation
Feature Comparison Summary
| Feature | Buzz.ai | GMass |
|---|---|---|
| Starting Price | $79/mo | $29.95/mo |
| Top Tier Price | Contact Sales | $175/mo |
| Total Features Listed | 10 | 10 |
| Integrations | 6 | 4 |
| Founded | N/A | 2015 |
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
Buzz.ai serves the multi-channel sales outreach and engagement tracking side of an outbound stack and GMass the cold email outreach side. GMass offers a more accessible entry point at $29.95/mo, while Buzz.ai starts at $79/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 Buzz.ai and GMass for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Buzz.ai and GMass?
- Buzz.ai is a sales engagement platform built for multichannel outreach across email, LinkedIn, calls and voicemail drops, with data enrichment and CRM sync. GMass is a Gmail-based mass email and mail merge platform focused on cold email campaigns with unlimited emails, contacts, and campaigns sent directly inside Gmail.
- Which is cheaper, Buzz.ai or GMass?
- GMass is cheaper at entry level, starting at $29.95/mo for its Standard plan compared to Buzz.ai's Core plan at $79/mo. GMass also offers 4 pricing tiers versus Buzz.ai's 3, giving more granularity as you scale, according to the pricing analysis.
- Does Buzz.ai or GMass integrate with Salesforce?
- Buzz.ai integrates with Salesforce, along with HubSpot, Pipedrive, Calendly, Zapier, and Webhooks. GMass does not list Salesforce among its integrations, which include Gmail, Google Sheets, Zapier, and Google Workspace. Both tools share Zapier as a common integration.
- Can I use both Buzz.ai and GMass together?
- Yes, the article notes that many teams run one of each. Buzz.ai handles multichannel outreach across email, phone, and social channels, while GMass handles cold email campaigns designed to land in the inbox and generate replies inside Gmail.
- Who is Buzz.ai best suited for compared to GMass?
- Buzz.ai is best suited for organizations with complex tech stacks needing broad integration support, enterprise buyers who prefer custom pricing and dedicated support, and SDR teams needing multichannel coordination. GMass fits teams whose priority is sending cold email campaigns directly inside Gmail with unlimited contacts and campaigns.
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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