MailChimp for WordPress vs Mailster
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | MailChimp for WordPress v4.14.1 · checked 23 Oct 2026 Free + paid · ★ 4.8/5 Visit Details | Mailster v2.0.3 · checked 23 Oct 2026 Paid · ★ 3.5/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 1M+ | 7,000+ |
| Last updated | September 16, 2026 | October 15, 2026 |
| Editions | MC4WP: Mailchimp for WordPress · Mailchimp for WordPress Premium ($) | Mailster Compatibility Tester · Mailster ($) |
| Pros | Native HTML sign-up forms with full field control; Sign-up hooks for Contact Form 7, WPForms, Gravity Forms and WooCommerce; Form widget and block for placing forms; Lists refreshed daily from the Mailchimp account | Server, PHP and mail checks in one admin page; Clear pass, warning or error result for each check; Free to run before buying Mailster |
| Cons | Form designer, logging and user sync are Premium only; Needs a Mailchimp API key connected to the site; Procaptcha bot protection loads a third-party script when enabled | Offers a Mailster licence purchase on the same page; Downloads the paid Mailster plugin after checkout; Only checks readiness, it is not the newsletter plugin |
| Mentioned in our posts | 2 | 2 |
| More features | ||
| Other features | Sign-up forms built from native HTML, Sign-up form widget, AMP-compatible sign-up forms, Campaigns archive block, Daily Mailchimp list refresh, Background subscribe through Action Scheduler or WP-Cron | Server and PHP compatibility checks, Mail delivery check through wp_mail, Admin page for running tests, Mailster licence checkout and download ($) |
| Integrations | ||
| Payment | — | Freemius checkout |
| Mailchimp | — | |
| E-commerce | WooCommerce, Easy Digital Downloads | — |
| Plugins | Contact Form 7, WPForms, Gravity Forms | Mailster download endpoint |
| Other | Procaptcha (Prosopo) | — |
| Requires WordPress | 5.3 | 6.0 |
| Requires PHP | 7.4 | 7.4 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | No |
| External services | js.prosopo.io, api.prosopo.io, api.mailchimp.com | mailster.co |
| Blocks | 2 | — |