Comparison

MailBrother vs GMass

Both send personalized emails from your Gmail account. The difference is where you work, what is free, and which extras you pay for.

MailBrotherGMass
Price Free; $9/month to remove the signature From $25/month per user
Free plan Unlimited time, full Gmail daily limit 50 emails/day trial
Google Sheets mail merge Yes Yes
HTML email insert Yes Yes
Scheduling Yes Yes
Split across days automatically Yes Yes
Open / click / bounce tracking Yes Yes
Unsubscribe link Yes Yes
Automated follow-ups No Yes
A/B testing No Yes
Team plan per user $7 per-user paid plans

GMass pricing: From $25/month per user (Standard); Premium $35, Professional $55. Their prices and limits change; check their site before deciding.

Where GMass is stronger

Automated follow-up sequences, A/B tests, verification and a large feature set for cold email teams.

Where MailBrother is stronger

No daily cap on the free plan beyond Gmail's own, HTML insert and split sending included, one button inside the Gmail compose window, and a $9 flat price to go signature-free.

Which one? Pick GMass if you run cold-email sequences with follow-ups and need A/B tests. Pick MailBrother if you send announcements, offers or one-off outreach and want the core mail-merge features free.

Switching is a five-minute job

  1. Install MailBrother from the Chrome Web Store and sign in with the same Google account.
  2. Keep your Google Sheet as it is: the first row holds column names, MailBrother detects the email column.
  3. Write the email in Gmail, use {Column} placeholders, press Send Mass.

Other comparisons: vs YAMM (Yet Another Mail Merge)  vs Mailmeteor