AcyMailing vs Mailster
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | AcyMailing v11.1.1 · 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 | 5,000+ | 7,000+ |
| Last updated | October 6, 2026 | October 15, 2026 |
| Editions | AcyMailing Starter · AcyMailing Essential ($) · AcyMailing Enterprise ($) | Mailster Compatibility Tester · Mailster ($) |
| Pros | Campaigns, lists and sign-up forms in the admin; Sign-up form shortcode, block and widget; Works with several email sending services | Server, PHP and mail checks in one admin page; Clear pass, warning or error result for each check; Free to run before buying Mailster |
| Cons | Queue, captcha, automations and bounce handling need a paid licence; Automations and bounce handling need the Enterprise level; Sending depends on cron and the chosen mail service | Offers a Mailster licence purchase on the same page; Downloads the paid Mailster plugin after checkout; Only checks readiness, it is not the newsletter plugin |
| Mentioned in our posts | 1 | 2 |
| More features | ||
| Other features | Newsletter campaigns, Contact lists, Sign-up form shortcode, Sign-up form Gutenberg block, Newsletter archive block and widget, Elementor widgets, Sending queue configuration ($), reCAPTCHA and hCaptcha on forms ($), Automations with triggers ($), Custom subscriber fields ($), Bounce handling mailbox ($) | Server and PHP compatibility checks, Mail delivery check through wp_mail, Admin page for running tests, Mailster licence checkout and download ($) |
| Integrations | ||
| Payment | — | Freemius checkout |
| Brevo, Postmark, SendGrid, Mailgun, AcyMailer sending service ($) | — | |
| Plugins | Elementor | Mailster download endpoint |
| Other | Google reCAPTCHA ($) | — |
| Requires WordPress | 5.8 | 6.0 |
| Requires PHP | 7.4 | 7.4 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | No |
| External services | api.brevo.com, api.postmarkapp.com, api.elasticemail.com, api.mailgun.net, api.eu.mailgun.net, api.sendgrid.com, api.acymailer.com, api.acymailing.com | mailster.co |
| Blocks | 3 | — |
| Shortcodes | 1 | — |