G2 Vendor Directory

Doubletick - Email Tracking for Gmail and GSuite vs. Apollo.io

A side-by-side comparison based on G2 review data.

MetricDoubletick - Email Tracking for Gmail and GSuite

by Doubletick

Apollo.io

by Apollo.io

Overall rating4.64.7
Review count139,851
Ease of use9.59.2
Ease of setup8.69.0
Quality of support8.68.9
Meets requirements9.09.2
NPS83.33333383.992806
Small Business50.0%66.9%
Mid-Market33.3%28.4%
Enterprise16.7%4.7%
Total page views7326,360
Total LLM citations67186,531

Doubletick - Email Tracking for Gmail and GSuite

Doubletick is Free and unlimited email tracking for Gmail and Google Workspace (G Suite) with real-time desktop notifications and WhatsApp like double tick marks (✓✓) in your sent box. A single blue tick ✓ indicates that an email has been sent, but yet to be opened by the recipient. Double blue ticks ✓✓ mean that your email has been opened by the recipient and grey ticks indicates that email is not tracked.

Pros

  • Affordable
  • Helpful
  • Easy Setup
  • Ease of Use
  • Data Accuracy
  • Email Tracking

Apollo.io

Apollo.io is an AI-powered go-to-market (GTM) platform that helps revenue teams find, engage, and manage B2B buyers across the entire sales cycle. Apollo.io is the company behind the industry’s first fully agentic GTM platform, transforming how revenue teams execute. Going beyond automation, Apollo’s intelligent agents actively drive results across the entire sales funnel – from prospecting to deal management – all in one place.

Pros

  • Ease of Use
  • Lead Generation
  • Features
  • Helpful
  • Time-saving
  • Automation