GMass vs Mailshake

A factual comparison of features, pricing, and capabilities

Last updated: 2/6/2026

GMass

Gmail-based mass email and mail merge platform with unlimited emails, campaigns, and contacts directly inside Gmail.

Starting at: $30/month

Mailshake

Sales engagement platform with email outreach, VOIP dialer, and LinkedIn automation for sales teams.

Starting at: $29/month

Pricing Comparison

Prices shown are monthly rates. Annual billing may offer discounts. Visit official websites for current pricing.

Feature Comparison

Feature	GMass	Mailshake
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
Unlimited email warmup
Unlimited campaigns
Mail merge
AI email writing
Email rotation
Unified inbox
LinkedIn automation (Sales Engagement+)
VOIP dialer (US/Canada unlimited)
Lead Catcher

Available

Partial/Limited

Not Available

Integrations

GMass

GmailGoogle SheetsZapierGoogle Workspace

Mailshake

SalesforcePipedriveHubSpotZapier

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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.