Rank Math vs SEMrush SEO Writing Assistant
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Rank Math v1.0.280 · checked 23 Oct 2026 Free + paid · ★ 4.8/5 Visit Details | SEMrush SEO Writing Assistant v1.2.1 · checked 23 Oct 2026 Free + paid · ★ 2.8/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 4M+ | 9,000+ |
| Last updated | October 6, 2026 | December 22, 2025 |
| Editions | Rank Math SEO · Rank Math SEO PRO ($) | Semrush SEO Writing Assistant |
| Pros | Sitemaps, schema, redirects and robots.txt in one plugin; On-page SEO analysis and 404 monitoring included; Google Search Console and IndexNow connections built in | Live content recommendations inside the editor; Works on posts, pages and products by default; Free to install with a Semrush account |
| Cons | Content AI needs service credits; Pro features and some modules are upsold in admin | Needs a Semrush account; keyword budgets depend on the plan; Interface and scoring load from Semrush's servers |
| Mentioned in our posts | 2 | 1 |
| Features (SEO plugins checklist) | ||
| Schema markup | Yes | No |
| XML sitemaps | Yes | No |
| Redirects | Yes | No |
| Local SEO | Yes | No |
| WooCommerce | Yes | No |
| AI content | Paid | — |
| Free version | Yes | Yes |
| More features | ||
| Other features | robots.txt editor, llms.txt generator, Image SEO options, 404 monitor, On-page SEO analysis, IndexNow instant indexing, Google Analytics and Search Console reports, Content AI with credits ($), Role manager for SEO capabilities | Editor meta box on posts, pages and products, Remote writing assistant interface, Per-document id for recommendation sets |
| Integrations | ||
| Analytics | Google Search Console, Google Analytics | — |
| E-commerce | WooCommerce | — |
| Plugins | Advanced Custom Fields, BuddyPress | — |
| Other | IndexNow, Content AI service ($) | Semrush |
| Requires WordPress | 6.7 | 4.8 |
| Requires PHP | 7.4 | 5.2.4 |
| Tested up to | 7.1 | 6.9 |
| Phones home | Only if you agree | No |
| External services | rankmath.com, cai.rankmath.com, ai-visibility.rankmath.com, api.indexnow.org, plugins.svn.wordpress.org, api.wordpress.org, searchconsole.googleapis.com, analyticsadmin.googleapis.com, graph.facebook.com, cdn.mxpnl.com, analyticsdata.googleapis.com | www.semrush.com |
| Blocks | 5 | — |
| Shortcodes | 12 | — |
| Custom tables | 1 | — |