GMass vs Lemwarm
A factual comparison of features, pricing, and capabilities
Last updated: 2/6/2026
Gmail-based mass email and mail merge platform with unlimited emails, campaigns, and contacts directly inside Gmail.
Starting at: $30/month
Pricing Comparison
Prices shown are monthly rates. Annual billing may offer discounts. Visit official websites for current pricing.
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
Integrations
GMass
GmailGoogle SheetsZapierGoogle Workspace
Lemwarm
GmailGoogle WorkspaceOutlookMicrosoft 365SMTPlemlist (native)HubSpot (via lemlist)Salesforce (via lemlist)Pipedrive (via lemlist)
Information on this page is gathered from official sources and may change. Pricing and features were last verified on 2/6/2026. Please visit the official websites for the most current information.