How do their growth rates compare?

Email Tracker has a month-over-month growth rate of -60.3%; Respond.io has -8.7%.

How does pricing compare?

Email Tracker: Freemium. Free forever plan with unlimited tracked emails, the Email Tracker signature and a limited number of invisible tracker sends. The Professional plan costs about $3.99 per month on annual billing and adds unlimited link tracking, signature removal, invisible/visible toggling and Chrome notifications. Team billing is available. Respond.io: Freemium. Freemium with a free trial. Paid tiers scale by users and monthly active contacts, and WhatsApp messaging fees are billed separately by the channel provider.

What are alternatives to Email Tracker and Respond.io?

Other tools in related categories include Duck.ai, Intercom, Gorgias, Crisp, AiSensy.

Email Tracker vs Respond.io — Traffic (8.24K vs 1.61M), Pricing & Verdict

Open AI Tools

Email Tracker vs Respond.io — Traffic (8.24K vs 1.61M), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Email Tracker	Respond.io
Official Domain	emailtracker.cc	respond.io
Pricing Model	Freemium	Freemium
Monthly Visits	8.24K (8,240)	1.61M (1,606,802)
MoM Traffic Delta	-12.54K (-60.3%)	-152.34K (-8.7%)
Primary Market & Share	🇺🇸 United States (31.9%)	🇲🇾 Malaysia (17.4%)
Direct Visits / mo	3.52K	1.24M
User Rating	3.8	4.5
Supported Platforms	Website	Website

Email Tracker

Free Gmail email tracking with open, link and attachment insights

Real-time open notifications

Get alerted through Chrome notifications or email the moment your message is opened, so you can time a follow-up while the interest is fresh.

Detailed engagement insights

See how many times and exactly when a recipient accessed your email, which helps identify the messages and segments that actually land.

Link and attachment tracking

Know when someone clicks a link in your message or opens an attached file, not just whether the email was opened.

Visible or invisible tracking

Choose a visible tracker to encourage replies, or an invisible tracker when you prefer recipients not to know.

Strengths & Pros

+Free plan genuinely tracks unlimited emails with no cap on volume
+Installs as a Chrome extension and layers onto Gmail without changing how you write email
+Real-time notifications make timely follow-ups practical
+The visible tracker option is an unusual, effective nudge toward higher reply rates