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Gmass vs. SDRx

Built from each tool’s researched, reviewed record. Figures are checked against public pricing pages at research time — always confirm current pricing with the vendor before buying.

The short version

Gmass starts at $18 per seat, versus SDRx at $40.

Full comparison

Gmassfrom $18 per month
SDRxfrom $40 per month
Audyense Score33AS*Low50AS*Low
PositioningGMass is an easy-to-use tool designed for email marketing and cold outreach directly within Gmail.AI SDR for account-based outreach, research, and follow-up.
Free tierYesNo
DeploymentCloud / SaaSCloud / SaaS
Best fitStartup, SMBStartup, SMB, Mid-market
Pricing plans
  • Free$18
  • BasicCustom pricing
  • Professional$43
  • Premium$27
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Turn Gmail into email platformYesDocumented in the sourced profile.—
Mail merge with Google SheetsYesDocumented in the sourced profile.—
Verify lists and fix spamYesDocumented in the sourced profile.—
Send automated follow-upsYesDocumented in the sourced profile.—
Break Gmail’s sending limitsYesDocumented in the sourced profile.—
Track campaign reports easilyYesDocumented in the sourced profile.—
Lead generationYesDocumented in the sourced profile.—
Data enrichmentYesDocumented in the sourced profile.—
Email outreachYesDocumented in the sourced profile.—
Email SenderYesDocumented in the sourced profile.—
AI-built ICP lists from a large prospecting database—Yes
LinkedIn outreach automation—Yes
Autonomous end-to-end outbound execution—Yes
Hyper-personalized 1:1 email generation using CRM/LinkedIn data—Yes
Adaptive multi-step follow-up sequencing—Yes
Automated account and competitor research—Yes
Email deliverability management (warmup, DMARC/DKIM, inbox rotation)—Yes
Integrations verified7+—
Aggregate rating— · No reviews yet5.0 · 6 reviews
Integrations
GmailZapierMakeLinkedInTwitterAPI+1 more
CRM syncEmailLinkedIn
Security & compliance——
Pros
  • Documented capability: Turn Gmail into email platform
  • Documented capability: Mail merge with Google Sheets
  • Profile names a concrete ICP: GMass is recommended for anyone who wants an easy way to send personalized mass emails and cold email sequences using Gmail. It’s great for businesses
  • Public profile names Gmail, Zapier, Make as connected workflow surfaces
  • Deep account research focus.
  • Personalized outreach over multiple channels.
  • Transparent product positioning around AI SDR workflows.
Cons
  • Some pricing or higher-tier terms are not publicly itemized
  • Fit is strongest for the stated Startups, SMBs audience rather than every team
  • Named integrations should be validated against the team's exact plan and workflow
  • Reported outcomes and vendor claims should be validated with the buyer's own data
  • Review volume is still early.
  • Not positioned as a broad GTM platform.
Visit Gmass ↗Visit SDRx ↗