GMass vs Klenty: Cold Email Platform Comparison
Compare GMass and Klenty side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.
GMass is a Gmail-based cold email platform starting at $30/month with unlimited contacts and campaigns, best for teams prioritizing affordability and high-volume email sending. Klenty is a multi-channel sales engagement platform starting at $50/month that adds phone, LinkedIn, and SMS outreach with AI-powered prospecting and intent-based follow-ups. GMass costs less and works inside Gmail; Klenty offers broader outreach channels and 8 CRM integrations versus GMass's 4.
Key takeaways
- GMass starts at $30/month compared to Klenty's $50/month entry price, making it 40% more affordable for budget-conscious teams.
- GMass offers unlimited emails, contacts, and campaigns across all plans, while Klenty limits the Starter plan to 15,000 contacts and 75,000 emails per month.
- Klenty provides multi-channel outreach across email, phone, LinkedIn, and SMS, while GMass focuses exclusively on email campaigns within Gmail.
- Klenty integrates with 8 platforms including Salesforce, HubSpot, and Pipedrive, while GMass offers 4 integrations primarily within the Google ecosystem.
- GMass includes free email verification and a Spam Solver deliverability tool, while Klenty offers AI-powered list building, a power dialer, and call recordings.
Reviewed and updated February 6, 2026
GMass vs Klenty: Cold Email Platform Comparison
GMass and Klenty are two of the most talked-about cold email platforms in the market today. Choosing between them depends on your team size, budget, and specific cold email outreach requirements. Here is everything you need to know.
The Quick Answer
GMass stands out with works inside gmail and unlimited emails, contacts, and campaigns. Klenty differentiates itself through multi-channel outreach (email, phone, linkedin, sms) and intent-based follow-ups.
GMass offers a lower entry point at $30/mo compared to Klenty at $50/mo.
If your priority is sending campaigns that land in the inbox and generate replies, both tools can deliver. The right choice depends on your budget, team size, and the specific capabilities you need most.
Understanding the Core Difference
GMass is Gmail-based mass email and mail merge platform with unlimited emails, campaigns, and contacts directly inside Gmail.
Klenty is Sales engagement platform with multi-channel cadences, AI-powered prospecting, intent-based follow-ups, and built-in dialer.
Both platforms offer a/b testing. Where they diverge is in their approach to pricing tiers and advanced capabilities.
Pricing Comparison
GMass Pricing (as of February 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Standard | $30/mo | Unlimited | Unlimited (Gmail limits apply) |
| Premium | $40/mo | Unlimited | Unlimited (Gmail limits apply) |
| Professional | $60/mo | Unlimited | Unlimited (Gmail limits apply) |
| Teams (5 users) | $175/mo | Unlimited | Unlimited (Gmail limits apply) |
Source: GMass Pricing
Klenty Pricing (as of February 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $50/mo | 15,000 contacts/month | 75,000 emails/month |
| Growth | $70/mo | Not specified | 500 emails/day |
| Plus | $99/mo | Unlimited | 500 emails/day |
| Enterprise | Contact Sales | Custom | Custom |
Source: Klenty Pricing
Pricing Analysis
GMass is more affordable at the entry level ($30/mo vs $50/mo). For teams with tight budgets or those just getting started with cold email outreach, this price difference matters.
Features Breakdown
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
Klenty Key Features
- Multi-channel outreach (email, phone, LinkedIn, SMS)
- Intent-based follow-ups
- AI-powered list building and enrichment
- AI sequence creation
- Sales playbooks
- Power dialer and call recordings
- Voicemail automation
- A/B testing
- 14-day free trial
- Advanced reporting and performance digests
Shared Capabilities
Both GMass and Klenty include:
- A/B testing
Unique to GMass
- Works inside Gmail
- Unlimited emails, contacts, and campaigns
- Mail merge personalization
- Free email verification
- Automated follow-up sequences
- Spam Solver deliverability tool
- Custom tracking links
- Inbox rotation
- API and Zapier access
Unique to Klenty
- Multi-channel outreach (email, phone, LinkedIn, SMS)
- Intent-based follow-ups
- AI-powered list building and enrichment
- AI sequence creation
- Sales playbooks
- Power dialer and call recordings
- Voicemail automation
- 14-day free trial
- Advanced reporting and performance digests
Integration Ecosystem
GMass Integrations
GMass connects with: Gmail, Google Sheets, Zapier, Google Workspace.
Klenty Integrations
Klenty connects with: Salesforce, HubSpot, Pipedrive, Zoho CRM, MS Dynamics, Zapier, Slack, Hippo Video.
Shared Integrations
Both tools integrate with: Zapier.
GMass exclusively offers: Gmail, Google Sheets, Google Workspace.
Klenty exclusively offers: Salesforce, HubSpot, Pipedrive, Zoho CRM, MS Dynamics, Slack, Hippo Video.
Use Case Recommendations
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
Best Fit for Klenty
- Budget-conscious teams looking for an affordable cold email platform
- Organizations with complex tech stacks needing broad integration support (8 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | GMass | Klenty |
|---|---|---|
| Starting Price | $30/mo | $50/mo |
| Top Tier Price | $175/mo | Contact Sales |
| Total Features Listed | 10 | 10 |
| Integrations | 4 | 8 |
| Founded | 2015 | 2016 |
Getting Started Checklist
- Define your cold email outreach requirements and monthly budget
- Estimate your expected 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
GMass and Klenty both serve the cold email outreach market well. GMass offers a more accessible entry point at $30/mo, while Klenty starts at $50/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.
Related Reading
- Best GMass Alternatives in 2026
- Best Klenty Alternatives in 2026
- GMass vs Instantly: Cold Email Platform Comparison
- GMass vs Smartlead: Cold Email Platform Comparison
- Instantly vs Klenty: Cold Email Platform Comparison
Pricing and features verified as of February 2026. Visit GMass and Klenty for current information.
Frequently asked questions.
Frequently asked questions- Which is cheaper, GMass or Klenty?
- GMass is cheaper with a starting price of $30/month compared to Klenty's $50/month entry tier. GMass also offers unlimited contacts and campaigns at this price point, while Klenty's Starter plan caps you at 15,000 contacts and 75,000 emails monthly. For teams with tight budgets or just starting with cold email outreach, GMass provides a more affordable entry point with fewer restrictions on volume.
- Does Klenty work inside Gmail like GMass does?
- No, Klenty does not work inside Gmail. GMass is specifically designed to operate as a Gmail-based platform, allowing you to send campaigns directly from your Gmail interface. Klenty is a standalone sales engagement platform that operates outside of Gmail and focuses on multi-channel outreach including email, phone, LinkedIn, and SMS. If working within Gmail is essential to your workflow, GMass is the appropriate choice.
- Can I make phone calls with GMass?
- No, GMass does not include phone calling capabilities. GMass focuses exclusively on email outreach with features like mail merge, automated follow-ups, and deliverability tools. Klenty offers a built-in power dialer, call recordings, and voicemail automation as part of its multi-channel sales engagement approach. If your outreach strategy requires phone calling alongside email, Klenty provides these capabilities while GMass does not.
- Which platform has better CRM integrations?
- Klenty offers more extensive CRM integrations with 8 total integrations including Salesforce, HubSpot, Pipedrive, Zoho CRM, and MS Dynamics. GMass provides 4 integrations focused on the Google ecosystem: Gmail, Google Sheets, Google Workspace, and Zapier. Both platforms integrate with Zapier for additional connectivity. If you rely on major CRM platforms beyond Google's ecosystem, Klenty provides broader native integration support.
- Do both GMass and Klenty offer A/B testing?
- Yes, both GMass and Klenty include A/B testing capabilities. This is one of the shared features between the two platforms, allowing you to test different email variations to optimize your outreach performance. Beyond A/B testing, the platforms diverge significantly—GMass focuses on unlimited email volume within Gmail, while Klenty adds multi-channel capabilities and AI-powered features like intent-based follow-ups and automated list building.
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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