Amplemarket vs GMass: Sales Engagement Platform vs Cold Email Platform Comparison
Compare Amplemarket (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.
Compare Amplemarket (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.
Reviewed and updated September 2, 2026
Amplemarket vs GMass: Sales Engagement Platform vs Cold Email Platform Comparison
Sales teams building an outbound stack often weigh Amplemarket, a sales engagement platform for multi-channel sales outreach and engagement tracking, against GMass, 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
Amplemarket 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, Amplemarket lists multichannel sequences and duo copilot ai sales agent, and GMass lists works inside gmail and unlimited emails, contacts, and campaigns.
GMass offers a lower entry point at $29.95/mo compared to Amplemarket at $600/mo.
If your priority is coordinating outreach across email, phone, and social channels, Amplemarket 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
Amplemarket is AI sales copilot and multichannel engagement platform that combines a B2B contact and company database, intent signals, sequences across email, phone and social, and mailbox deliverability tooling for outbound sales teams.
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
Startup
Standard
Amplemarket Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Startup | $600/mo | 27,000 contacts |
| Growth | Contact Sales | 140,000 contacts |
| Elite | Contact Sales | 400,000 contacts |
Source: Amplemarket 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 $600/mo). Teams watching their budget will appreciate the savings, especially when starting out.
GMass offers 4 pricing tiers compared to Amplemarket's 3, giving you more granularity as you scale.
Features Breakdown
- Multichannel Sequences
- Duo Copilot AI sales agent
- Duo Copywriter for personalized first-touch emails
- Duo Voice for AI voice messages at scale
- Duo Inbox with automatic draft replies
- Contact and company search over a B2B database
- 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
Amplemarket Key Features
- Multichannel Sequences
- Duo Copilot AI sales agent
- Duo Copywriter for personalized first-touch emails
- Duo Voice for AI voice messages at scale
- Duo Inbox with automatic draft replies
- Contact and company search over a B2B database
- AI Intent Signals
- Job change alerts on tracked contacts
- Outbound Dialer for verified phone numbers
- Domain Health Center with deliverability booster and spam checker
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 Amplemarket
- Multichannel Sequences
- Duo Copilot AI sales agent
- Duo Copywriter for personalized first-touch emails
- Duo Voice for AI voice messages at scale
- Duo Inbox with automatic draft replies
- Contact and company search over a B2B database
- AI Intent Signals
- Job change alerts on tracked contacts
- Outbound Dialer for verified phone numbers
- Domain Health Center with deliverability booster and spam checker
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
Amplemarket Integrations
Amplemarket connects with: Salesforce, HubSpot, Pipedrive, Gmail, Microsoft 365, Zapier, Clay, Okta, CloudTalk, Orum, Nooks, SendSpark.
GMass Integrations
GMass connects with: Gmail, Google Sheets, Zapier, Google Workspace.
Shared Integrations
Both tools integrate with: Gmail, Zapier.
Integrations listed only by Amplemarket: Salesforce, HubSpot, Pipedrive, Microsoft 365, Clay, Okta, CloudTalk, Orum, Nooks, SendSpark.
Integrations listed only by GMass: Google Sheets, Google Workspace.
Use Case Recommendations
Best Fit for Amplemarket
- Mid-market to enterprise teams with established multi-channel sales outreach and engagement tracking budgets
- Organizations with complex tech stacks needing broad integration support (12 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
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 | Amplemarket | GMass |
|---|---|---|
| Starting Price | $600/mo | $29.95/mo |
| Top Tier Price | Contact Sales | $175/mo |
| Total Features Listed | 10 | 10 |
| Integrations | 12 | 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
Amplemarket 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 Amplemarket starts at $600/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 Amplemarket and GMass 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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