Prime SEO reads the titles, descriptions, keywords and schema settings Rank Math stored for every post (23 fields, plus your homepage titles and the redirect table) and copies them in one click, while Rank Math stays installed until you have compared the two. There is no credit balance to top up, no add-on subscription and no second plugin arriving with an update.
Three quotes from one- and two-star reviews on WordPress.org, out of the 300 most recent ones we read on September 22, 2026. Links go to the original reviews.
“a few days after purchasing Rank Math SEO “PRO”, I was charged for a subscription to “Content AI Starter”, which I never subscribed to.”
Review on WordPress.org, June 2, 2026
“They just installed imagify with the most recent update.”
Review on WordPress.org, November 21, 2025
“I am a Rank Math Pro paid user, and the support experience has been extremely disappointing.”
Review on WordPress.org, January 5, 2026
Helper::get_content_ai_credits() in class-content-ai.php); reviews describe a separate paid subscriptionFile counts and sizes: the plugin folders from WordPress.org, measured on September 22, 2026 (Rank Math 1.0.278). The crawler finding: our file-by-file read of five free SEO plugins.
The Migration Tool reads Rank Math’s own data. Nothing in Rank Math is deleted, so you can compare both plugins before switching off the old one.
| Rank Math data | Fields | Imported |
|---|---|---|
| SEO title, meta description, focus keyword | 3 | ✓ Yes |
| Canonical URL, robots and advanced robots | 3 | ✓ Yes |
| Facebook title, description, image and image ID; Twitter title, description, image, image ID, “use Facebook” flag | 9 | ✓ Yes |
| Rich snippet type, snippet name and description, primary category, breadcrumb title, pillar content | 6 | ✓ Yes |
| SEO score and Content AI score (kept for reference) | 2 | ✓ Yes |
| Homepage title and description (Rank Math variables converted) | site settings | ✓ Yes |
Redirects from the rank_math_redirections table |
table | ✓ Yes |
| Content AI drafts, keyword rank tracking, Analytics module data | — | ✕ Not imported |
Field list from class-prime-seo-migration.php in Prime SEO 1.2.0: 23 rank_math_* post meta keys, the rank_math_options_general and titles options and the rank_math_redirections table.
A switch costs an afternoon. These are the reasons not to make it.
Rank Math free ships 22 modules, including Local SEO, Google Analytics integration, WooCommerce and Web Stories. Prime SEO covers the SEO core and the AI crawler side, nothing for local listings or rank tracking.
Rank Math reports 4 million active installs in the directory. Prime SEO is a 2026 plugin with a fraction of that, one developer and no premium support tier.
Rank Math free has an llms module (includes/modules/llms). The difference is around it: Prime SEO adds llms-full.txt, per-bot robots rules for 15 crawlers and a log of which AI crawlers visited, all free.
yoursite.com/sitemap.xml./sitemap.xml instead of /sitemap_index.xml). Keep the Rank Math plugin folder for a week in case you want to compare, then delete it.Rankings depend on the tags a crawler reads in the head of the page (title, description, canonical, robots directives), and every one of them is imported unchanged, so a crawler visiting the day after the switch finds the same head section it indexed the week before.
Not from the switch itself. The tags Google reads (title, description, canonical, robots) are imported as they were. What can change rankings is deactivating Rank Math without importing first, which leaves posts with no meta description for a while. Import, verify, then deactivate.
No. The Migration Tool reads Rank Math’s own data and copies it. It deletes nothing. If you reactivate Rank Math, everything is where it was.
Nothing on our side: it is a Rank Math account product, cancelled in your Rank Math account. Prime SEO Pro’s AI features are part of the one $59 plan, with no credits to buy.
The free version has two admin notices: a review request after seven days of use and a conflict warning when another SEO plugin is active, shown only on Prime SEO’s own pages. Pro features appear as buttons where they apply, such as “Generate with AI” in the post editor. There are no banners, no popups and nothing installs itself.
For the import, yes. For a live site, no: two SEO plugins each output their own meta tags and sitemaps, and search engines get duplicates. Deactivate Rank Math once the import is verified.
The version on WordPress.org includes titles and descriptions, sitemaps, schema, redirects, 404 monitor, IndexNow, breadcrumbs, image SEO, llms.txt and the AI Bots Manager. Pro ($59 a year) adds AI-written titles and descriptions, a bulk generator, an AI content score and a video sitemap.
Install the free version, run the import, look at three posts. Rank Math stays active until you switch it off.
Install Free on WordPress.org Read the Migration Tool documentation →