Rank Math vs All in One SEO vs SEOPress (2026): Tested

Rank Math, All in One SEO and SEOPress all write your titles and descriptions, add social tags and build sitemaps. Where they differ is what the free version does on its own, which paid plan a feature sits on, what the plan costs after the first year, and how heavy each one is. We installed the free version of each on the same WooCommerce test store on 6 October 2026, measured what it printed and loaded, walked through every screen shown here, and checked each feature against the developer’s own pages and the plugin code.

The short answer

• Rank Math has the fullest free version: redirects, a 404 monitor, schema types per post, a robots.txt editor and local business schema for one location are all free. PRO covers every site you own for one price. The catch: it asks you to connect an account first, and until we pressed Skip Step it printed nothing at all on our post.
• All in One SEO has a step-by-step setup wizard and, in the free version, readability checks and the only headline analyzer of the three. Redirects, the per-post schema generator and local SEO are paid, it was the heaviest of the three in the editor, and every plan renews at double its first-year price.
• SEOPress is the lightest, and the cheapest over time for one site or for client sites: SEOPress does not raise the price at renewal, and $149 a year covers unlimited sites, client sites included. The free version is leaner: the free SEOPress printed no schema on a blog post, and redirects, breadcrumbs and the robots.txt editor are in PRO.

How we tested

Each plugin was installed on a WordPress test store running WooCommerce and the default Twenty Twenty-Five theme. For each one in turn we switched every SEO plugin off, deleted that plugin’s settings, post data and tables so it started from a first install, activated it through the WordPress admin, and read four pages: a blog post, a product, the home page and the shop page. We compared each page with the same page with no SEO plugin active: WordPress on its own printed no meta description, no social tags and no schema on that post. We then opened every screen shown in this article, typed a focus keyword into Rank Math and SEOPress, and saved what each screen said. The versions were Rank Math 1.0.279, All in One SEO 5.0.2.1 and SEOPress 10.3, the current releases on WordPress.org, and we compared each with the WordPress.org release file by file: all three were identical.

We tested the free versions only. Plan placement for paid features comes from each developer’s pricing and feature pages, read on 6 October 2026, and from the plugin code. We also read the code of PureGPL’s own copies of Rank Math PRO 3.0.122, All in One SEO Pro 5.0.2 and SEOPress PRO 10.3 to see what exists; those copies contain added licence lines, so we did not use them for any screen, measurement or plan placement. This is not a ranking test: no plugin can be shown to rank a page higher from a test like this, and we do not claim it.

At a glance

Prices and renewals

All prices were read from each developer’s pricing page on 6 October 2026. Rank Math’s page showed us prices in euros. Every price on its page that carries both currencies has the same number in each, PRO’s 107.88 included, so we give its prices in dollars. Rank Math bills monthly prices once a year, and it was running a sale: the first-year figures below are sale prices, and its page says each plan renews at the regular monthly price.

All in One SEO’s renewals are exactly double its first-year prices; its FAQ says “Basic renews at $99/year versus its $49.50 regular price”. SEOPress’s page says “renew at the same price every year!”, and its FAQ adds an exception for special promotions.

What three years cost

These totals use the list prices above and assume they do not change. Rank Math’s first-year figures are sale prices; at its regular price PRO costs $323.64 over three years.

What each one does to your site

Each plugin started from a first install, with nothing configured except Rank Math’s account step, which we skipped. Rank Math printed nothing on the front end until we pressed Skip Step: its code stops the front end until the site is connected or the step is skipped. The figures below are after that.

None of the three added a script or stylesheet to the public page; what they add is text in the page head. In the post editor the difference is large: All in One SEO loaded 243 files, about ten times as many as Rank Math, and nearly 4 MB of JavaScript. SEOPress printed no schema on our post; on the home page it printed WebSite schema only. The Product and Offer schema on the product page with SEOPress is WooCommerce’s own: the same page with no SEO plugin printed it too. Rank Math and All in One SEO replace or extend it.

The meta descriptions they wrote

Our post had no description typed in, so each plugin wrote one from the content.

All in One SEO and SEOPress took the first 249 characters of the page text and ran the heading “Seasoning” into the sentence before and after it. Rank Math kept to 155 characters but stopped mid-sentence. None of the three is a description you would publish; write your own for pages that matter. SEOPress’s editor marked its own 249-character description in red against a 160-character limit.

Setup and switching

Rank Math opens on “Connect FREE Account” with a Skip Step button, then a wizard with the steps Getting Started, Import, Your Site, Analytics, Sitemaps, Optimization and Ready. All in One SEO opens its wizard, which says it “takes less than 10 minutes”, and SEOPress’s wizard says it “takes about 3 minutes” and has a Skip for now link.

What they ask differs. Rank Math asks for the site type and logo, offers a Search Console connection, then sitemap post types and tweaks such as nofollow on external links; its Import step only appears when another SEO plugin is installed, and a Custom setup mode that loads a settings file is PRO. All in One SEO walks through the site category and title, organisation or person details, a feature picker, search appearance, smart recommendations, Search Console and a licence key step. SEOPress asks for the site name and type, social profiles, which post types and archives to index, and whether to switch on its metabox and AI assistant. All three can be skipped and finished later.

Moving between them is easy: each imports the other two. Rank Math’s import screen listed Yoast SEO, SEOPress and All In One SEO Pack; All in One SEO listed Rank Math SEO 1.0.279 and SEOPress 10.3 as ready to import; SEOPress offers “Import from Yoast / Rank Math / AIOSEO / SEOFramework”. The sitemap address changes when you switch, so resubmit it in Google Search Console.

Writing and editing

The free versions differ most in keywords. Rank Math takes 5 focus keywords per post, capped by a code filter, and its PRO plugin raises the cap to a fixed 100 although the pricing cards say unlimited. All in One SEO’s free version takes one focus keyword; its paid cards say up to 10, although the Pro code we read sets no cap by default. SEOPress takes as many comma-separated target keywords as you like in the free version. For readability, All in One SEO’s TruSEO checks are on every plan, Rank Math scores title and content readability (short paragraphs, a table of contents, media, power words) without a Flesch score, and SEOPress has a single check for long sections. All in One SEO is the only one of the three with a headline analyzer that scores titles; Rank Math’s title checks look at the keyword position, sentiment, power words and numbers, and SEOPress checks whether a target keyword appears in the title and whether the title is too long. Rank Math and All in One SEO let you edit titles and descriptions in bulk from the post list for free; SEOPress’s free version adds them to Quick Edit, one post at a time.

Rank Math and All in One SEO put their panel in the block editor sidebar; SEOPress puts a metabox under the post. With our test post open, All in One SEO scored it 54/100 before we added a keyword and listed 5 improvements, such as “Your post has no images or videos.” Rank Math’s sidebar showed the snippet preview, the focus keyword we typed and an upgrade box. SEOPress showed pixel and character counts for the title and description, with the description at 249 of 160 characters in red.

Schema

On our blog post, Rank Math printed BlogPosting with the author as a Person, and All in One SEO printed BlogPosting with breadcrumbs. Out of the box Rank Math sets posts to BlogPosting, pages to Article and WooCommerce products to Product; breadcrumb schema only appears once you switch its breadcrumbs on. Choosing a schema type per post is free in Rank Math, from 18 pre-defined types, Basic and up in All in One SEO, where the free version only sets a default type for each post type, and PRO in SEOPress. Product and Review schema on a post that is not a WooCommerce product are free in Rank Math, Basic and up in All in One SEO and PRO in SEOPress. For FAQs, Rank Math’s free FAQ and HowTo blocks print their schema, SEOPress’s free FAQ block prints FAQPage schema too, and All in One SEO’s free FAQ block needs a paid plan for its schema. Podcast episode schema exists only in Rank Math PRO.

Social

Social basics are free in all three: Facebook and X previews in the editor, a per-post social title, description and image, and site-wide organisation or person details with profile links for Google’s Knowledge Graph. SEOPress’s previews only appear once a post is published. All three printed 6 Open Graph tags on our post; Rank Math and SEOPress added 5 X (Twitter) tags and All in One SEO 3.

Sitemaps

XML, image and HTML sitemaps are free in all three; video and news sitemaps are paid in all three. SEOPress PRO’s news sitemap covers the last 2 days and up to 1,000 posts. The address differs, which matters when you switch: Rank Math serves its sitemap at /sitemap_index.xml, All in One SEO at /sitemap.xml and SEOPress at /sitemaps.xml.

Redirects and 404s

This is the clearest free-version gap. Rank Math’s redirect manager is free once you switch its module on, with Exact, Contains, Starts With, End With and Regex matching. All in One SEO’s free Redirects screen says “Redirects is a PRO Feature” over an Unlock Redirects button. SEOPress has no redirect manager in the free version: its free metabox handles a redirect for one post at a time, with 301, 302 or 307. Rank Math’s free manager also offers 410 and 451, and its 404 monitor is free; CSV import of redirects is in PRO. In All in One SEO the redirect manager and 404 monitor are on Pro and Elite.

Local SEO and WooCommerce

Rank Math’s free Local SEO module gives one location local business schema with 193 business types; more locations need PRO. All in One SEO’s local SEO is an add-on on Plus and up, and its free Local SEO screen is an upgrade page with an Unlock Local SEO button. SEOPress PRO adds local business schema with opening hours and a Local Business block for one location; for more, you add a Local Business schema to each location page.

For WooCommerce, the free Rank Math replaces WooCommerce’s product schema with its own, which we saw on our product page as ItemPage, Product and Offer, and its free settings can remove the product and category base from URLs. WooCommerce now has its own GTIN field: Rank Math’s free Product schema carries it over, and with SEOPress free WooCommerce’s own schema prints it. The plugins’ extra GTIN, MPN and variation fields are paid in all three. SEOPress’s free version only cleans /product-category/ from URLs and sets a primary category; noindexing the cart, checkout and account pages is in PRO.

AI features

The AI features cost extra in different ways. Rank Math’s free plugin gives 5 uses of its title and description tool; after that you need a separate Rank Math AI plan, and buying PRO only adds a 15-day trial. All in One SEO runs on its own AI credits: the free version gets trial credits and each paid plan includes a monthly allowance. SEOPress PRO uses your own OpenAI, Claude, Gemini, Mistral or DeepSeek key, or a SEOPress AI Credits subscription at $19, $29 or $49 a month.

For AI search, Rank Math’s and All in One SEO’s free versions generate an llms.txt file. SEOPress generates it in PRO; its WordPress.org page lists llms.txt among the free features, but the free plugin’s code has none. All three can connect to AI agents through MCP in the free version: SEOPress 10.3 has a built-in MCP server that is off until you switch it on, and All in One SEO registers 13 abilities.

Links, analytics and rank tracking

Rank tracking is where the plans differ most: Rank Math PRO tracks 500 keywords across all your sites, Business 10,000 and Agency 50,000; All in One SEO keeps it for Elite, with up to 100 keywords from Search Console; and SEOPress sells it as Insights at $99 a year per site, with up to 50 keywords. Search Console data inside WordPress is free in Rank Math, which keeps 90 days of it, Elite only in All in One SEO and PRO in SEOPress. Internal link suggestions are free in Rank Math, an add-on on Pro and Elite in All in One SEO, and PRO in SEOPress. All in One SEO keeps a history of title, description and schema edits on Plus and up, with 15 saved revisions on Plus and 30 on Pro.

Technical SEO

The robots.txt and .htaccess editors are free in Rank Math and All in One SEO and PRO in SEOPress. Breadcrumbs are free in Rank Math (switched off on install) and in All in One SEO, and PRO in SEOPress. For instant indexing, SEOPress’s free version submits URLs to both the Google Indexing API and IndexNow, up to 100 at a time; Rank Math’s free module uses IndexNow, and All in One SEO’s IndexNow add-on needs a paid plan. SEOPress’s free version also strips the generator tag, shortlink, emoji scripts and other clutter from the page head; All in One SEO’s free Crawl Cleanup trims RSS feeds, bots and tracking query arguments instead; Rank Math’s free version strips ?replytocom links and can remove WooCommerce’s generator tag, but not the rest. SEOPress’s free version can also fill in image titles and alt text from the file name on upload.

Audits and author SEO

Both free audits need an account. All in One SEO’s free version audits the home page only, and on our store it showed “Connect with AIOSEO to see your Site Score” in place of a score; the full Site Audit needs a paid plan. Rank Math’s free SEO Analyzer runs its 30+ tests through rankmath.com, and its screen said “Analyze your site by linking your Rank Math account”. SEOPress’s Site Audit is in PRO and checks 13 issues on every page. For author credibility, All in One SEO’s Author SEO add-on on Plus and up adds author bios, expertise and a Reviewed By field with reviewedBy schema; Rank Math’s free author schema has no credential fields; SEOPress PRO adds ProfilePage schema for author archives.

Agencies and client sites

Rank Math PRO excludes client sites, so agencies need Business (100 client sites) or Agency (500). All in One SEO allows client sites within each plan’s site count. Every SEOPress PRO licence may be used on client sites, and SEOPress is the only one of the three with a white label screen, in PRO; Rank Math says it does not offer white label, apart from its email reports on Business and Agency, and All in One SEO has no white label option. Multisite networks are supported in the free Rank Math and SEOPress, and need Elite in All in One SEO.

Support and refunds

Free users of all three get the WordPress.org forum. Rank Math’s 30-day refund is the longest but applies to new purchases only; All in One SEO and SEOPress give 14 days, and SEOPress AI Credits are never refunded.

Where each one goes further

• Rank Math: the free redirect manager, 404 monitor and Search Console data; schema type per post from 18 types and Product schema on any post, free; local schema for one location, free; one PRO price for every site you own, with 500 tracked keywords; a 30-day refund.
• All in One SEO: a headline analyzer and TruSEO checks in the free version; free Crawl Cleanup; SEO revision history on Plus and up; Author SEO with Reviewed By schema on Plus and up; client sites allowed on any plan within its site count.
• SEOPress: unlimited target keywords in the free version; free Google Indexing API and IndexNow submission; free head clean-up and image attribute automation; the same price at renewal; white label in PRO; the lightest install on our store.

Pros and cons

Rank Math

• Pro: the most in the free version, including redirects, a 404 monitor, schema per post, local schema and Search Console data.
• Pro: PRO covers every site you own and includes rank tracking for 500 keywords.
• Con: it asks you to connect an account first, and printed nothing until we skipped that step.
• Con: client sites need Business or Agency, and AI tools need a separate Rank Math AI plan.

All in One SEO

• Pro: a step-by-step setup wizard, a headline analyzer and TruSEO checks in the free version.
• Pro: SEO revision history and Author SEO with Reviewed By schema on Plus and up.
• Con: redirects, schema per post and local SEO are paid, and every plan renews at double its first-year price.
• Con: the heaviest in the editor on our store, with 243 files loaded.

SEOPress

• Pro: the lightest of the three and the same price at renewal; $149 a year covers unlimited sites, client sites included, with white label.
• Pro: unlimited keywords, Google Indexing API submission and head clean-up in the free version.
• Con: the free version printed no schema on a blog post, and redirects, breadcrumbs and the robots.txt editor are in PRO.
• Con: rank tracking is a separate Insights licence for each site.

Which should you pick

Our verdict

If you want one plugin and will not pay, install Rank Math: on our store its free version did the most, as long as you skip or complete its account step and switch on the modules you need, such as redirections. If you will pay and care about cost over several years, SEOPress is the clear choice for one site without rank tracking, for a few sites, or for client work: $147 over three years for one site and $447 for unlimited sites, at the same price every year. All in One SEO is the friendliest for a beginner on one site, but check the renewal before you buy, because its plans renew at double the first-year price, and expect the heaviest editor of the three. Whichever you choose, write your own meta descriptions for the pages that matter: none of the three wrote one we would publish.

What other comparisons get wrong

• Rank Math’s own pricing page lists SEOPress at 148 for 1 site, 356 for 3, 1,139 for 10 and 10,049 for 100 sites, in a table last updated on 3 June 2026. Those figures equal SEOPress PRO plus its $99-a-year Insights add-on for every site; SEOPress PRO alone is $49, $59 or $149. The same table sets Rank Math PRO against 100 sites, but PRO excludes client sites.
• Rank Math’s price. blogvault.net says Rank Math’s “Pro plan runs $84/year”; aioseo.com says it “starts at $69 per year”; searchatlas.com gives “$6.99/month”; linkwhisper.com and growthmarketingpro.com give $59 a year. Rank Math’s page showed $95.88 for the first year on sale and $107.88 after.
• A free version that does exist. growthmarketingpro.com says All in One SEO “is the only option on this list that doesn’t have a free version”. It has one on WordPress.org, with 2 million+ active installations.
• SEOPress for 5 sites. searchatlas.com says “SEOPress Pro costs $49/year for 5 sites”; $49 is the 1-site plan and 5 sites cost $59.
• All in One SEO’s plans. linkwhisper.com lists “Business (up to 10 sites): $99.50/year”; the $99.50 plan is Plus, for 3 sites. aioseo.com’s own comparison still quotes Basic at $49.60.
• Rank Math’s client plans. quickcreator.io says Business “supports 200 client websites”; Rank Math’s page says 100.
• Sitemap pings. blogvault.net says Rank Math creates sitemaps “with daily search engine pings”. Rank Math’s code on our store has no sitemap ping.
• Old prices. growthmarketingpro.com, first published in 2023, gives SEOPress PRO as $39 a year; it is $49.

On PureGPL

Rank Math PRO 3.0.122, All in One SEO Pro 5.0.2 and SEOPress PRO 10.3 are each $4.99 in our catalogue.

What a GPL copy does and does not include

These plugins are licensed under the GPL, which is why they can be redistributed. A GPL copy is not a licence with the developer: it comes without their support, and anything that runs through the developer’s own account or servers is not part of it. For SEO plugins that matters more than usual, because keyword rank tracking, AI credits and connected analytics are services the developer hosts. Our copies of Rank Math PRO, All in One SEO Pro and SEOPress PRO contain added licence lines, so they are not the developer’s unmodified files. If you need the hosted services or the developer’s support, buy from the developer.

Sources

Prices, plan contents and features were read from these pages on 6 October 2026. The measurements and screens are from our own test store.

• WordPress.org plugin data: all-in-one-seo-pack
• WordPress.org plugin data: seo-by-rank-math
• WordPress.org plugin data: wp-seopress
• aioseo.com/best-seo-plugins-for-wordpress
• aioseo.com/features
• aioseo.com/features/access-controls
• aioseo.com/features/ai-assistant
• aioseo.com/features/author-seo-google-e-e-a-t
• aioseo.com/features/breadcrumbs
• aioseo.com/features/broken-link-checker
• aioseo.com/features/google-news-sitemaps
• aioseo.com/features/indexnow
• aioseo.com/features/internal-link-assistant
• aioseo.com/features/keyword-rank-tracker
• aioseo.com/features/llms-txt-generator
• aioseo.com/features/local-seo
• aioseo.com/features/redirection-manager
• aioseo.com/features/rich-snippets-schema
• aioseo.com/features/search-statistics
• aioseo.com/features/smart-xml-sitemaps
• aioseo.com/features/truseo-score-analysis
• aioseo.com/features/video-seo-sitemaps
• aioseo.com/introducing-aioseo-mcp
• aioseo.com/pricing
• aioseo.com/pricing-broken-link-checker
• aioseo.com/terms
• rankmath.com/ai/pricing
• rankmath.com/free-vs-pro
• rankmath.com/kb/content-ai-plans-and-credits
• rankmath.com/kb/llms-txt
• rankmath.com/kb/local-seo
• rankmath.com/kb/mcp-tools
• rankmath.com/pricing
• seopress.org/features
• seopress.org/features/google-search-console
• seopress.org/features/instant-indexing
• seopress.org/features/keyword-rank-tracker
• seopress.org/features/local-seo
• seopress.org/features/openai
• seopress.org/features/white-label
• seopress.org/features/woocommerce-seo
• seopress.org/pricing
• seopress.org/seopress-free-vs-pro
• seopress.org/support/faq
• seopress.org/support/guides/edit-your-llms-txt-file
• seopress.org/terms-conditions
• seopress.org/wordpress-seo-plugins/insights
• seopress.org/wordpress-seo-plugins/seopress-ai-credits
• wordpress.org/plugins/all-in-one-seo-pack
• wordpress.org/plugins/seo-by-rank-math
• wordpress.org/plugins/wp-seopress
• aioseo.com/aioseo-vs-seopress (competitor page we checked)
• aioseo.com/all-in-one-seo-vs-rank-math (competitor page we checked)
• blogvault.net/seopress-vs-rank-math (competitor page we checked)
• growthmarketingpro.com/rank-math-vs-yoast-vs-seopress-vs-aioseo (competitor page we checked)
• linkwhisper.com/all-in-one-seo-vs-rankmath (competitor page we checked)
• quickcreator.io/blogs/rankmath-vs-seopress-vs-yoast-seo-vs-all-in-one-seo (competitor page we checked)
• searchatlas.com/blog/seopress-vs-rank-math (competitor page we checked)
• wpmanta.com/blog/seopress-vs-rank-math-vs-yoast-vs-all-in-one-seo (competitor page we checked)

Frequently asked questions

Which is best: Rank Math, All in One SEO or SEOPress?

Rank Math if you want the most in the free version or run several of your own sites; SEOPress if you want the lowest cost over time or build client sites; All in One SEO if you want a step-by-step setup wizard and writing help.

Is Rank Math better than All in One SEO?

For free features, yes: redirects, a 404 monitor and schema per post are free in Rank Math and paid in All in One SEO. All in One SEO has a headline analyzer and readability checks in its free version.

Is SEOPress better than Rank Math?

SEOPress is lighter and its paid plan costs less over three years for one site or for client sites. Rank Math’s free version does more.

Which is the lightest?

SEOPress on our store: 13.2 MB, 1 database table, 1,678 bytes added to a post and 17 files loaded in the editor.

Do they slow down the front end?

None of the three added a script or stylesheet to our public pages; each added between 724 and 4,812 bytes of text to the page head.

Can I switch from one to another?

Yes. Each imports the other two. Take a backup first and resubmit your sitemap afterwards, because the address changes.

Does All in One SEO have a free version?

Yes, on WordPress.org, with 2 million+ active installations.

Is Rank Math free?

Yes, the core plugin is free on WordPress.org with 4 million+ active installations. PRO costs $107.88 a year at its regular price.

Does SEOPress have a free version?

Yes, with 300,000+ active installations. SEOPress PRO starts at $49 a year for one site.

Which is best for beginners?

All in One SEO has a step-by-step setup wizard and writing checks. Rank Math’s wizard is also guided, but it asks for an account connection first.

Which has the most features in the free version?

Rank Math: redirects, a 404 monitor, schema per post, local schema for one location, Search Console data and a robots.txt editor are all free.

Which is best for WooCommerce?

Rank Math’s free version prints its own Product schema for WooCommerce products and can clean product URLs. All in One SEO and SEOPress need a paid plan for product schema beyond what WooCommerce prints.

Do they generate llms.txt?

Rank Math and All in One SEO do in their free versions; SEOPress does in PRO.

Do they renew at the same price?

SEOPress does. All in One SEO renews at double its first-year price. Rank Math renews at its regular monthly price, billed yearly.

Which has the best free redirects?

Rank Math: its redirect manager and 404 monitor are free. In All in One SEO and SEOPress they are paid.

See also: best SEO plugins for WordPress and Rank Math vs Yoast SEO.