Mailster vs Newsletter
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Mailster v2.0.3 · checked 23 Oct 2026 Paid · ★ 3.5/5 Visit Details | Newsletter v9.4.9 · checked 23 Oct 2026 Free + paid · ★ 4.6/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 7,000+ | 200,000+ |
| Last updated | October 15, 2026 | October 22, 2026 |
| Editions | Mailster Compatibility Tester · Mailster ($) | Newsletter · Newsletter Professional Addons ($) |
| Pros | Server, PHP and mail checks in one admin page; Clear pass, warning or error result for each check; Free to run before buying Mailster | Subscriber lists with signup forms and double opt-in; Open and click tracking built in; Free core plus free add-ons such as archive and locked content |
| Cons | 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 | Professional add-ons need a paid licence; Sending depends on the site's own mail setup; Tracking adds pixels and redirect routes to emails |
| Mentioned in our posts | 2 | 2 |
| More features | ||
| Other features | Server and PHP compatibility checks, Mail delivery check through wp_mail, Admin page for running tests, Mailster licence checkout and download ($) | Subscription forms and newsletter_form shortcode, Single and double opt-in subscription, Open and click tracking routes, Subscriber profile and unsubscribe shortcodes, Cron-driven sending engine, Free add-ons: registration, archive, locked content, Professional add-ons via paid licence ($) |
| Integrations | ||
| Payment | Freemius checkout | — |
| Plugins | Mailster download endpoint | Polylang, WPML |
| Other | — | Akismet |
| Requires WordPress | 6.0 | 6.1 |
| Requires PHP | 7.4 | 7.0 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | No |
| External services | mailster.co | www.thenewsletterplugin.com |
| Blocks | — | 1 |
| Shortcodes | — | 11 |
| Custom tables | — | 1 |