Cart66 to Mailchimp vs ClassDex (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
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Quick Verdict
As of April 2026, ClassDex has a higher user rating (5/5 from 3 reviews) while Cart66 to Mailchimp leads in active installations (10 vs 10). Both are free WordPress plugins. Cart66 to Mailchimp has accumulated 2.0K+ total downloads while ClassDex has 4.4K+.
Detailed Comparison
| Metric | Cart66 to Mailchimp | ClassDex | |
|---|---|---|---|
| Rating | N/A | ► | 5/5 |
| Total Reviews | 0 | ► | 3 |
| Active Installs | 10 | 10 | |
| Total Downloads | 2.0K+ | ► | 4.4K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 12 years ago | ► | 11 years ago |
| First Released | 2013 | 2013 | |
| Age | 13 years | 13 years | |
| WP Requires | 2.8.2+ | 3.5+ | |
| PHP Requires | false+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 1.4 | 1.2.4 |
Rating
N/ACart66 to Mailchimp
►ClassDex5/5
Total Reviews
0Cart66 to Mailchimp
►ClassDex3
Active Installs
10Cart66 to Mailchimp
ClassDex10
Total Downloads
2.0K+Cart66 to Mailchimp
►ClassDex4.4K+
Support Resolution
N/ACart66 to Mailchimp
ClassDexN/A
Last Updated
12 years agoCart66 to Mailchimp
►ClassDex11 years ago
First Released
2013Cart66 to Mailchimp
ClassDex2013
Age
13 yearsCart66 to Mailchimp
ClassDex13 years
WP Requires
2.8.2+Cart66 to Mailchimp
ClassDex3.5+
PHP Requires
false+Cart66 to Mailchimp
ClassDexfalse+
Business Model
FreeCart66 to Mailchimp
ClassDexFree
Latest Version
1.4Cart66 to Mailchimp
ClassDex1.2.4
Rating Breakdown
Cart66 to Mailchimp
0/5(0 reviews)
5
0%
4
0%
3
0%
2
0%
1
0%
ClassDex
5/5(3 reviews)
5
100%
4
0%
3
0%
2
0%
1
0%
Frequently Asked Questions
Is Cart66 to Mailchimp or ClassDex more popular?
Cart66 to Mailchimp has 10 active installations while ClassDex has 10. ClassDex is the more widely-used plugin as of April 2026.
Which has better ratings — Cart66 to Mailchimp or ClassDex?
Cart66 to Mailchimp has a 0/5 rating from 0 reviews, while ClassDex has a 5/5 rating from 3 reviews.
Are Cart66 to Mailchimp and ClassDex free?
Cart66 to Mailchimp is free and ClassDex is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Cart66 to Mailchimp or ClassDex?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
Cart66 to Mailchimp was last updated 12 years ago and ClassDex was last updated 11 years ago.
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.