MC4WP: Mailchimp for WordPress vs CallBack Widget for WordPress (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
CallBack Widget for WordPress
40 active installs
Free
Quick Verdict
As of April 2026, CallBack Widget for WordPress has a higher user rating (5/5 from 2 reviews) while MC4WP: Mailchimp for WordPress leads in active installations (1.0M+ vs 40). Both are free WordPress plugins. MC4WP: Mailchimp for WordPress has accumulated 73M+ total downloads while CallBack Widget for WordPress has 5.7K+.
Detailed Comparison
| Metric | MC4WP: Mailchimp for WordPress | CallBack Widget for WordPress | |
|---|---|---|---|
| Rating | 4.8/5 | ► | 5/5 |
| Total Reviews | 1,492 | ◄ | 2 |
| Active Installs | 1.0M+ | ◄ | 40 |
| Total Downloads | 73M+ | ◄ | 5.7K+ |
| Support Resolution | 89% | N/A | |
| Last Updated | 1 week ago | ◄ | 10 years ago |
| First Released | 2013 | 2015 | |
| Age | 13 years | 11 years | |
| WP Requires | 4.6+ | 3.0.1+ | |
| PHP Requires | 7.4+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 4.12.1 | 20150911 |
Rating Breakdown
MC4WP: Mailchimp for WordPress
CallBack Widget for WordPress
Download Trends
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.
CallBack Widget for WordPress Reviews
No reviews yet
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Frequently Asked Questions
Is MC4WP: Mailchimp for WordPress or CallBack Widget for WordPress more popular?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.