Tool comparison · Head to head
GMass vs Lemwarm
A factual comparison of features, pricing, and capabilities.
Updated 2/6/2026
The contenders
01
Line by line
Pricing comparison.
Monthly rates shown. Annual billing may offer discounts — visit official sites for current pricing.
Capabilities
Feature comparison.
| Feature | GMass | Lemwarm |
|---|---|---|
| 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 | ||
| Automated email warmup with human-like interactions | ||
| Warm-up network of 20,000+ domains across 150+ countries | ||
| Industry-tailored warmup clusters for natural patterns | ||
| Deliverability score out of 100 | ||
| Technical setup checker (SPF, DKIM, DMARC) | ||
| Personalized warmup using your real email templates (Smart plan) | ||
| Custom deliverability alerts and recommendations | ||
| Free with any lemlist subscription |
Available
Partial/Limited
Not Available
Ecosystem
Native integrations.
GMass.
GmailGoogle SheetsZapierGoogle Workspace
Lemwarm.
GmailGoogle WorkspaceOutlookMicrosoft 365SMTPlemlist (native)HubSpot (via lemlist)Salesforce (via lemlist)Pipedrive (via lemlist)
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Book a strategy callInformation gathered from official sources and may change. Pricing and features last verified 2/6/2026. Please visit the official websites for the most current information.