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Head-to-head · Sales Email Tracking Software

Mailsuite vs Vocus.io

  • Updated Oct 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score Mailsuite #1 in Sales Email Tracking Software 9.4/10 Free plan Free plan✓ 6 of 6 features Visit Mailsuite
Vocus.io #5 in Sales Email Tracking Software 8.8/10 30-day trial Free trial✓ 5 of 6 features Visit Vocus.io

Mailsuite leads on 2 checks, Vocus.io on 0, and 5 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMailsuite · 9.4/10
  • Free planonly Mailsuite
  • Free trialonly Vocus.io
  • Most featuresMailsuite · 6 of 6

Mailsuite scores higher on our rubric for sales email tracking software: 9.4 against 8.8 out of 10; our editors rank them #1 and #5.

Mailsuite offers free plan; Vocus.io doesn't. On email client support, Mailsuite gives you Gmail_and_outlook where Vocus.io offers Gmail. Mailsuite offers attachment tracking; Vocus.io doesn't.

Mailsuite is the better fit for teams wanting a broad email tracking toolkit. Vocus.io is the better fit for gmail sales teams that want tracking and CRM logging.

  • Mailsuite fits best

    Teams wanting a broad email tracking toolkit

  • Vocus.io fits best

    Gmail sales teams that want tracking and CRM logging

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Mailsuite 9.4/10 Visit ↗ Vocus.io 8.8/10 Visit ↗
At a glance
Editor score 9.4 8.8
Ranking #1 in Sales Email Tracking Software #5 in Sales Email Tracking Software
Best for Teams wanting a broad email tracking toolkit Gmail sales teams that want tracking and CRM logging
Pricing model Free plan + paid Paid
Starting price — $5/user/mo
Free plan ✓ (best) —
Free trial — 30 days
Deployment Cloud, Mobile, Browser extension Browser extension
Platforms Web, iOS, Android, Chrome extension Chrome extension
Integrations 6 integrations 12 integrations
Features Mailsuite 6/6 · Vocus.io 5/6
Open tracking ✓ ✓
Click tracking ✓ ✓
Reply tracking ✓ ✓
Attachment tracking ✓ (best) —
Real-time alerts ✓ ✓
CRM synchronization ✓ ✓
Specs
Email client support Gmail_and_outlook Gmail
Our review
Pros
  • Tracks opens, link clicks, replies, and PDF engagement
  • Offers real-time alerts and reminders for unanswered emails
  • Connects Gmail workflows with Salesforce, HubSpot, and other tools
  • Tracks opens per recipient, link clicks, and replies.
  • Automates follow-ups and provides templates, snippets, and reminders.
  • Logs email activity to CRMs through auto-BCC, webhooks, and Zapier.
Cons
  • Several paid features are Gmail-centered, with a separate Outlook feature set
  • The Free plan keeps only first-open tracking history
  • Mailtrack limits PDF tracking to five documents
  • Supports Gmail and G Suite, not Outlook.
  • No free plan; the 30-day offer is a trial.
  • Campaign attachments can be sent, but attachment tracking is not supported.
Our verdict

Mailsuite brings email tracking and document analytics together for teams that send sales emails from Gmail and want more than open notifications. It records opens, link clicks, replies, and PDF interactions, with alerts and follow-up…

Read the review →

For Gmail and G Suite users, Vocus.io combines email tracking with outreach automation and CRM logging. Sales teams can track opens per recipient, link clicks, and replies, then use scheduled sending, follow-up sequences, reminders, and…

Read the review →
  1. MailsuiteSales Email Tracking Software 9.4Free plan
  2. Vocus.ioSales Email Tracking Software 8.830-day trial

Strengths and trade-offs

  • Mailsuite — where it wins

    • Tracks opens, link clicks, replies, and PDF engagement
    • Offers real-time alerts and reminders for unanswered emails
    • Connects Gmail workflows with Salesforce, HubSpot, and other tools

    Where it doesn't

    • Several paid features are Gmail-centered, with a separate Outlook feature set
    • The Free plan keeps only first-open tracking history
    • Mailtrack limits PDF tracking to five documents
  • Vocus.io — where it wins

    • Tracks opens per recipient, link clicks, and replies.
    • Automates follow-ups and provides templates, snippets, and reminders.
    • Logs email activity to CRMs through auto-BCC, webhooks, and Zapier.

    Where it doesn't

    • Supports Gmail and G Suite, not Outlook.
    • No free plan; the 30-day offer is a trial.
    • Campaign attachments can be sent, but attachment tracking is not supported.

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update