Campaign Monitor Forms by Optin Cat

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

Share of active installs on each version of this plugin · 77% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

Refined from the date this plugin crossed into its current band.

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. A small install base leaves thin data to model from.

1. ★★★★★ sleepyjones

   9.0y ago

   Completely useless if you want anything other name Name and Email address This topic was modified 8 years, 11 months ago by sleepyjones.

   Read on wp.org ↗
2. ★★★★★ cpacoaches

   9.8y ago

   why am I getting the ‘client id’ error w/ mailchimp. fix this and I’ll change the rating.

   Read on wp.org ↗
3. ★★★★★ Scott

   10.5y ago

   I’m still fairly new to WordPress and have recently taken over administrating our company’s website. I’ve looked at many different plugins and Optin Cat was by far the easiest to implement into our website without any conflicts. Linking this over to our Campaign Monitor account was likewise smooth and quick. While the free version has many great features and would be great by itself, the premium version is worth the price if you need the extra functionality. Definitely recommend.

   Read on wp.org ↗
4. ★★★★★ jdiebel

   11.3y ago

   I’ve worked with a lot of different email capture solutions and this was by far the easiest to implement. It looks good, works well and I highly recommend it.

   Read on wp.org ↗
5. ★★★★★ freedomstudios

   11.5y ago

   The plugin is easy setup and use. Their form editor is really something very useful and makes life very easy. Linking up to Campaign Monitor and selecting the relevant list is also a breeze. The only thing I would like to see added is an AJAX feature thanking the user for their sign-up without directing to a new page. Great plugin guys!

   Read on wp.org ↗
6. ★★★★★ mandy wong

   11.6y ago

   This is a fantastic plugin and the creators at Fat Cat Apps were so quick at responding to any questions I had. Couldn’t fault it and works perfectly with the latest version of WordPress (4.1). Thanks guys!

   Read on wp.org ↗
7. ★★★★★ TravisJamison

   11.9y ago

   Works perfectly. Super simple to get started (took about 1 minute max), and most importantly to me it actually LOOKS GOOD. Very modern, crisp style. There was a big need for this plugin, and I’m glad to see it’s live.

   Read on wp.org ↗

2 disclosed vulnerabilities on record for this plugin, all fixed in the current version. Sites on older versions stay exposed until they update.

1. Medium · 6.1 Campaign Monitor Forms by Optin Cat <= 2.5.7 - Reflected Cross-Site Scripting ↗
   2024-12-02 CVE-2024-11326 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 2.5.7 Patched in 2.5.8
2. High · 7.1 Campaign Monitor Forms <= 2.5.5 - Missing Authorization to Authenticated(Subscriber+) Options Update via ajax_dismiss_notice ↗
   2023-10-09 CVE-2023-5098 Missing Authorization Affects <= 2.5.5 Patched in 2.5.6

Automated install-time checks, tested on PHP 8.1.12 · WP 7.0.1

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

1. 2025-06-30 300+ → 200+ down after 10 days in tier
2. 2025-06-20 200+ → 300+ up after 1 days in tier
3. 2025-06-19 300+ → 200+ down after 379 days in tier
4. 2024-06-05 400+ → 300+ down after 311 days in tier
5. 2023-07-30 500+ → 400+ down after 19 days in tier
6. 2023-07-11 400+ → 500+ up after 5 days in tier
7. 2023-07-06 500+ → 400+ down after 2 days in tier
8. 2023-07-04 400+ → 500+ up after 1 days in tier

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

• C Campaign Monitor Add-On for FormCraft 50+ installs · 3.6★ · 2 shared tags D
• Campaign Monitor for WordPress 2K+ installs · 2.2★ · 1 shared tag C
• CM Commerce for WooCommerce 90+ installs · 4.5★ · 1 shared tag D
• C Contact Form 7 – Campaign Monitor Addon 80+ installs · 3.6★ · 1 shared tag D
• P Plugin Name: CM Subscriber Stats 20+ installs · 3.6★ · 1 shared tag D
• C Campaign Monitor Dashboard 10+ installs · 4.1★ · 1 shared tag D

Embed this report card

Drop a live Pulse card for Campaign Monitor Forms by Optin Cat into a readme, a review or a deck. It updates itself.

Campaign Monitor Forms by Optin Cat: 200+ active installs, 3.9★ (7 reviews). Plugin Pulse (WP Mayor), as of 2026-09-01. https://plugins.wpmayor.com/plugin/campaign-monitor-wp