Brevo vs Mailster
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Brevo v3.3.5 · checked 23 Oct 2026 Free + paid · ★ 4.1/5 Visit Details | Mailster v2.0.3 · checked 23 Oct 2026 Paid · ★ 3.5/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 100,000+ | 7,000+ |
| Last updated | June 24, 2026 | October 15, 2026 |
| Editions | Brevo | Mailster Compatibility Tester · Mailster ($) |
| Pros | Sign-up forms with double opt-in; Transactional email sent through Brevo; Web push notifications; WooCommerce contact sync | Server, PHP and mail checks in one admin page; Clear pass, warning or error result for each check; Free to run before buying Mailster |
| Cons | Needs a Brevo account and API key; Marketing tracker script loads on every page once connected; reCAPTCHA or Turnstile calls go to Google or Cloudflare when enabled | Offers a Mailster licence purchase on the same page; Downloads the paid Mailster plugin after checkout; Only checks readiness, it is not the newsletter plugin |
| Mentioned in our posts | 2 | 2 |
| More features | ||
| Other features | Sign-up forms with double opt-in, Subscribe widget and shortcode, Transactional email sent through Brevo, Web push subscription, Optional reCAPTCHA or Turnstile on forms, Marketing automation tracker in the site header | Server and PHP compatibility checks, Mail delivery check through wp_mail, Admin page for running tests, Mailster licence checkout and download ($) |
| Integrations | ||
| Payment | — | Freemius checkout |
| Brevo API | — | |
| E-commerce | WooCommerce | — |
| Plugins | — | Mailster download endpoint |
| Other | WonderPush (Brevo web push), Google reCAPTCHA, Cloudflare Turnstile | — |
| Requires WordPress | 4.4 | 6.0 |
| Requires PHP | 5.6 | 7.4 |
| Tested up to | 6.9.1 | 7.1 |
| Phones home | No | No |
| External services | www.google.com, cdn.brevo.com, management-api.wonderpush.com, api.brevo.com, challenges.cloudflare.com | mailster.co |
| Shortcodes | 1 | — |