Akismet vs Kadence Blocks Pro

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Feature Akismet v5.7.2 · checked 23 Oct 2026 Free + paid · ★ 4.7/5 Visit Details Kadence Blocks Pro v2.8.8 · checked 23 Oct 2026 Paid Visit Details
At a glance
Active installs 5M+ —
Last updated August 18, 2026 —
Editions Akismet Anti-spam: Spam Protection · Akismet paid plan ($) Kadence Blocks Pro ($)
Pros Checks comments and contact form submissions against a shared spam database; Works with Contact Form 7 and Gravity Forms; Stats through a dashboard widget and REST endpoints Query loop and filter blocks for WooCommerce and posts; Advanced forms store entries and show analytics; Dynamic content works with ACF and WooCommerce fields
Cons Needs an Akismet API key from akismet.com; Commercial sites must buy a paid plan; Submitted content is sent to Akismet for checking Needs the free Kadence Blocks plugin and a licence key; Sends the licence key in the query string for custom SVG lookups; Form actions call Brevo, ConvertKit and other services when configured
Mentioned in our posts 2 —
More features
Other features Checks comments before they are saved, Spam checks for Gravity Forms and Contact Form 7 submissions, Scheduled deletion of old spam and orphaned comment meta, Block statistics dashboard widget, REST endpoints for key, settings and stats, Webhook endpoint for Akismet account updates, Stats ability for the WordPress Abilities API Query loop and filter blocks for posts and products ($), Stores advanced form submissions and lists them in admin ($), Advanced form analytics ($), Conditional form logic ($), Form actions that send submissions to email services and webhooks ($), Dynamic content from ACF, WooCommerce and other sources ($), Slider, modal, post grid and product carousel blocks ($), Custom SVG library fetched with the licence key ($), Licence activation through the StellarWP Uplink client ($)
Integrations
Email — Brevo (Sendinblue) ($), ConvertKit ($)
E-commerce — WooCommerce ($)
Plugins Contact Form 7, Gravity Forms, Jetpack Advanced Custom Fields ($)
Other Akismet —
Requires WordPress 5.8 6.6
Requires PHP 7.2 7.4
Tested up to 7.1 6.9
Phones home No No
External services rest.akismet.com api.sendinblue.com, api.convertkit.com, api.brevo.com, patterns.startertemplatecloud.com
Blocks — 29