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OpenedOrNot Alternatives: 7 Options Compared, Including Free (2026)

Explore 7 alternatives to OpenedOrNot — vetted by our editors with real user reviews, pricing, and feature comparisons.

Our 7 top free OpenedOrNot alternatives at a glance

Quick answer

Here's the lineup of OpenedOrNot alternatives: ReadNotify, Boomerang for Gmail and MailTrack. ReadNotify leads the list with a 1.5★ rating from real users. Compare all 7 on rating and pricing below.

There's no single best tool for everyone, so if OpenedOrNot falls short on cost, features, or ease of use, look here. These 7 email tracking software free alternatives lead the field, ranked by SpotScore (a blend of real-user satisfaction and market presence), ratings, and pricing. Compare them quickly in the table, then read each profile.

ProductSpotScoreRatingPricingBest for
ReadNotifyUnleash the power of email tracking.—★★☆☆☆ 1.5(1)Freefrom $3.99 per monthsmall & mid-size businesses
Boomerang for GmailEffortlessly manage your email with one click.—★★★★★ 4.52(353)Freefrom $4.99/moteams of all sizes
MailTrackSmart Email Tracking and Productivity for Gmail—★★★★☆ 4.49(275)Freefrom $8.33 /user/monthteams of all sizes
MassMailerUnleash the power of mass emails with ease.—★★★★☆ 4.16(16)Freefrom $12.49/moteams of all sizes
Vocus.ioStreamline your email outreach and reach success—★★★★☆ 4.27(15)Freefrom $5/moteams of all sizes
Woodpecker.coWarm leads made easy.—★★★★☆ 3.75(83)Freefrom $33/mosmall & mid-size businesses
ReplybuttonMaximize your email effectiveness with Replybutton.—Not yet ratedFreefrom $14 /User/Monthteams of all sizes
ReadNotify

ReadNotify

Unleash the power of email tracking.

Best for: SMB teams · Mid-market

Start Free Trial

1.5

1 verified reviews

Add to compare

What is ReadNotify?

Introducing ReadNotify, a revolutionary email tracking solution that lets you monitor your emails and documents in just minutes. With the tagline "Track Email in Minutes," ReadNotify offers a reliable and easy-to-use platform for tracking the interactions with your correspondence. Gone are the ...

Read more about ReadNotify
Free TrialTry Free →
Boomerang for Gmail - New SaaS Software

Boomerang for Gmail

Effortlessly manage your email with one click.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.5

353 verified reviews

Add to compare

What is Boomerang for Gmail?

Boomerang for Gmail is a sophisticated automated message generation and email management system. This might just be the ideal piece of software for business owners and professionals who wish to confidently manage their emails. One needs to enter the message in the text box and choose ‘Send ...

Read more about Boomerang for Gmail
Free TrialTry Free →·

Boomerang for Gmail offers custom pricing plan

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MailTrack - New SaaS Software

MailTrack

Smart Email Tracking and Productivity for Gmail

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.5

275 verified reviews

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watch-demo

Watch Demo

What is MailTrack?

Mailtrack is a simple yet powerful email tracking solution designed to help professionals stay informed about the status of their emails. Built for sales teams, marketers, freelancers, educators, and business owners, it provides real-time notifications to know when and how often emails are ...

Read more about MailTrack
Free TrialTry Free →
MassMailer - New SaaS Software

MassMailer

Unleash the power of mass emails with ease.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.2

16 verified reviews

Add to compare

What is MassMailer?

With MassMailer, Salesforce CRM customers have a powerful solution to send mass emails and track responses easily. Get rid of the limited email options within Salesforce and exceed any batch or daily limits with this easy-to-use platform. Create email templates right within Salesforce and then ...

Read more about MassMailer
Free TrialTry Free →·

MassMailer offers custom pricing plan

Vocus.io - New SaaS Software

Vocus.io

Streamline your email outreach and reach success

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.3

15 verified reviews

Add to compare

What is Vocus.io?

Vocus.io makes it easy to reach out to the right people with the right message. Get hundreds of personalized emails out with just a few clicks. Tailor Vocus.io to autofill longer phrases with a simple slash. Plus, you'll have easy access to your calendar for easy availability tracking. Make the ...

Read more about Vocus.io
Free TrialTry Free →
Woodpecker.co - New SaaS Software

Woodpecker.co

Warm leads made easy.

Best for: SMB teams · Mid-market

Start Free Trial

3.8

83 verified reviews

Add to compare

What is Woodpecker.co?

Woodpecker.co is a simple and efficient way to start warm business conversations. Easily integrate with software and email services, and rely on the advanced algorithm features for list verification, real time response tracking, and bounce shield. With sales automation and customizable ...

Read more about Woodpecker.co
Free TrialTry Free →·

Woodpecker.co offers custom pricing plan

Replybutton - New SaaS Software

Replybutton

Maximize your email effectiveness with Replybutton.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is Replybutton?

Replybutton automates personalized email outreach to multiple contacts simultaneously, replacing manual follow-up sequences. Its analytics track reply rates and engagement per email, helping sales teams identify the most engaged prospects and prioritize their pipeline.

Read more about Replybutton
Free Trial

OpenedOrNot competitors, compared

Buyers comparing OpenedOrNot usually weigh it against these 7 email tracking software competitors, starting with ReadNotify, Boomerang for Gmail and MailTrack. Each is compared against OpenedOrNot on rating, pricing and feature coverage below.

Sites and apps like OpenedOrNot

Searches for "sites like OpenedOrNot" and "apps like OpenedOrNot" land on the same shortlist as "OpenedOrNot alternatives" — the 7 options below cover both, whether you want a like-for-like replacement or something lighter.

What each OpenedOrNot alternative is good at

ReadNotifyBest for small & mid-size businesses
Boomerang for GmailBest for teams of all sizes

Automated email scheduling

Watch for: Limited to Gmail users

MailTrackBest for teams of all sizes

Mailtrack provides instant notifications when an email is opened or a link is clicked, enabling users to follow up promptly and optimize communication timing.

Watch for: While integration with Gmail is excellent, Mailtrack has limited compatibility with other popular email platforms, which may restrict usage for non-Gmail users.

MassMailerBest for teams of all sizes

Mass email capabilities

Watch for: Limited features outside Salesforce

Vocus.ioBest for teams of all sizes

Personalized email outreach

Watch for: Limited to email outreach

Woodpecker.coBest for small & mid-size businesses

Easy-to-use interface that makes creating and monitoring campaigns quick.

Watch for: Customer support responses can take a day or so to come back.

ReplybuttonBest for teams of all sizes

How to choose among OpenedOrNot alternatives

The hard numbers across these 7 email tracking software free alternatives: 7 offer a free tier; paid plans run $3.99–$33, with ReadNotify the cheapest entry point; and Boomerang for Gmail is the highest rated at 4.52★ across 353 reviews.

How positions are set.

Frequently Asked Questions (FAQs)

Stuck on something? We're here to help with all the questions and answers in one place.

The top-rated alternatives to OpenedOrNot are Boomerang for Gmail (4.5★), MailTrack (4.5★), Vocus.io (4.3★). Compare all 7 alternatives side-by-side above.

When evaluating alternatives to OpenedOrNot, prioritize: Email Tracker, Reporting, Real Time Analytics, Alert Notifications, transparent pricing, free trial availability, and integrations with your existing tools. Use the filters above to compare by feature, budget, and team size.

Migration difficulty depends on how deeply OpenedOrNot is integrated into your workflows. Most alternatives offer data export/import tools and dedicated onboarding support. We recommend narrowing to 2–3 options, running a free trial, and checking each vendor's migration guides before committing.

How to settle on the best OpenedOrNot alternative

How to cut over from OpenedOrNot

Before switching off OpenedOrNot, run the checks that prevent headaches later. Export your data, verify the import, and confirm feature parity for your must-have workflows. Pilot the new tool free, then migrate, leaving OpenedOrNot active until you're done.

Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].