MC4WP: Mailchimp for WordPress vs HollerBox — Fast & Effective Popups &… (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
MC4WP: Mailchimp for WordPress
1.0M+ active installs
Free
HollerBox — Fast & Effective Popups &…
3.0K+ active installs
Free
Quick Verdict
As of April 2026, MC4WP: Mailchimp for WordPress has a higher user rating (4.8/5 from 1,492 reviews) and leads in active installations (1.0M+ vs 3.0K+). Both are free WordPress plugins. MC4WP: Mailchimp for WordPress has accumulated 73M+ total downloads while HollerBox — Fast & Effective Popups &… has 186K+.
Detailed Comparison
| Metric | MC4WP: Mailchimp for WordPress | HollerBox — Fast & Effective Popups &… | |
|---|---|---|---|
| Rating | 4.8/5 | 4.8/5 | |
| Total Reviews | 1,492 | ◄ | 32 |
| Active Installs | 1.0M+ | ◄ | 3.0K+ |
| Total Downloads | 73M+ | ◄ | 186K+ |
| Support Resolution | 89% | N/A | |
| Last Updated | 1 week ago | ◄ | 8 months ago |
| First Released | 2013 | 2017 | |
| Age | 13 years | 9 years | |
| WP Requires | 4.6+ | 5.0+ | |
| PHP Requires | 7.4+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 4.12.1 | 2.3.10.1 |
Rating Breakdown
MC4WP: Mailchimp for WordPress
HollerBox — Fast & Effective Popups &…
Download Trends
Over the past 30 days, MC4WP: Mailchimp for WordPress averaged approximately 39,899 daily downloads while HollerBox — Fast & Effective Popups &… averaged 13.
Recent Reviews
MC4WP: Mailchimp for WordPress Reviews
Good but Limited
Works well for basic email setup & easy to connect with Mailchimp. UI is simple. But needs more flexibility in forms. Overall, a good plugin. tnx 👍
Simple Mailchimp Connect
Good plugin for connecting Mailchimp with WP. Setup was pretty easy and forms started collecting emails without much hassle. UI is clean too. A few more design options would be nice, but overall works
Just Started Using This API
I like it so far and will update this review as time goes on.
HollerBox — Fast & Effective Popups &… Reviews
It works
Works without problem. Simple configuration.
Doesn’t work
I installed the plugin and when trying to create my first popup I got the following error: “We could not load the editor because the defined template is no longer available.” I can’t create any pop
I like it.
I was looking for something lightweight, simple, and, with an intuitive real-time interface for my client. This met the requirements. Here are some sugestions for improvement, though. Adding a
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Frequently Asked Questions
Is MC4WP: Mailchimp for WordPress or HollerBox — Fast & Effective Popups &… more popular?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.