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🚀 Coming soon to Chrome Web Store

Email automation
with fresh zest

Track opens, send mail merges, run bulk campaigns, and analyze results — all inside Gmail. No tab-switching required.

Add to Chrome – It's Free See Features →
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Email Open Tracking

Know exactly when your emails are read with real-time open notifications. See timestamps, locations, and device info.

📋

Mail Merge

Connect Google Sheets and send personalized emails at scale. Variables like {{name}} are replaced automatically for each recipient.

Bulk Send

Send campaigns to hundreds of recipients with smart throttling that respects Gmail limits. Schedule or drip-send over time.

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Campaign Analytics

Track open rates, click rates, and reply rates with visual dashboards. See per-recipient status in real time.

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Email Templates

Save and reuse your best-performing emails. Organize by category and load them instantly into Gmail compose.

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Click Tracking

Track every link click in your emails. See which links get the most engagement to optimize your content.

Privacy-first by design

We request fewer permissions than any competitor. Your inbox stays private.

Zestmail
✓ Email address only
✓ Gmail send (for scheduling)
✓ Sheets read-only (mail merge)
No inbox access
Mailtrack
✗ Read all email
✗ Manage contacts
✗ Modify email
Full inbox access
GMass
✗ Read all email
✗ Full Gmail access
✗ Manage drafts
Full inbox access

Simple pricing

Start free. Upgrade when you need more power.

Free

$0 /month
  • 20 tracked emails/day
  • Open tracking
  • Real-time notifications
  • Side panel dashboard