Expert Guide

The Best Content Optimization Tools in 2026

Two of these grade a draft against SERP terms and bill by seat. The rest are a free plugin, a free console or a WordPress plan in euros.

Louis CorneloupFounder, Dupple · 930,000+ readers · Updated Sep 2026

Product links may be affiliate links. How we rate 5 tools compared

TL;DR

Surfer yearly: Discovery $49, Standard $99, Pro $182, Peace of Mind $299 per month. Frase yearly: Starter $39, Professional $103, Scale $239 per month (monthly is $49 / $129 / $299). Rank Math PRO is €8.99 a month billed annually (ex VAT), less during first-year promotions. Google Search Console is free. Rank Math's free plugin covers on-page basics without a grader.

Key facts5 tools compared: Surfer, Frase, Rank Math, Google Search Console, Google Keyword Planner

Updated: September 25, 2026
Top pick: Surfer (best for: Writers who want a content editor scored against the current SERP)
Top pick price as of September 25, 2026: Surfer: From $49/mo (Discovery, billed yearly); monthly billing is higher

5 tools compared: Surfer, Frase, Rank Math, Google Search Console, Google Keyword Planner
Frase (best for: Teams that want research briefs and an optimizer in one login): From $39/mo (Starter, billed yearly; $49 monthly); extra seats $29
Rank Math (best for: WordPress sites that need schema, sitemaps and on-page SEO checks): Free plugin; PRO €8.99/mo billed annually (ex VAT), first year often discounted
Google Search Console (best for: Seeing the queries you already get, before you buy a grader): Free; you need to verify the property

Content optimization tools look like one job: make the page rank. They bill as two. Graders sell a content score against the current SERP. Plugins sell schema, sitemaps and a traffic light in WordPress.

Search Console sells nothing and still has the query data the graders are guessing at.

A comparison that treats Surfer's $99 and Rank Math's €9 as the same product is how a writer pays for a score they never needed, or a site owner buys a grader and still has no Search Console property.

Top Picks

Based on features, real-world fit, and value for money.

Best Content Optimization Tools in 2026: 5 tools compared, updated Sep 2026
Tool	Pricing	Best for
Surfer	From $49/mo (Discovery, billed yearly); monthly billing is higher	Writers who want a content editor scored against the current SERP
Frase	From $39/mo (Starter, billed yearly; $49 monthly); extra seats $29	Teams that want research briefs and an optimizer in one login
Rank Math	Free plugin; PRO €8.99/mo billed annually (ex VAT), first year often discounted	WordPress sites that need schema, sitemaps and on-page SEO checks
Google Search Console	Free; you need to verify the property	Seeing the queries you already get, before you buy a grader
Google Keyword Planner	Free with a Google Ads account; you do not have to run ads	Checking whether a topic has demand before you open Surfer

Pricing read from each vendor's own published pricing page, checked Sep 2026. Every vendor here publishes a price.

Lowest monthly figure each vendor publishes, checked Sep 2026. A tilde marks a figure the vendor states approximately. Per-seat and usage charges can sit on top of it. 2 of 5 do not publish a comparable monthly price and are left out rather than estimated.

Surfer

Top Pick

Best for: Writers who want a content editor scored against the current SERP

PricingFrom $49/mo (Discovery, billed yearly); monthly billing is higher

+Content Editor is still the default "make this rank" workflow

+Yearly Standard at $99 is the plan people actually stay on

+SERP-based terms beat a generic keyword density plugin

−Discovery at $49 is easy to outgrow the week you need real article volume

−A score is not a strategy. Thin pages still fail

Visit Surfer →

Frase

Best for: Teams that want research briefs and an optimizer in one login

PricingFrom $39/mo (Starter, billed yearly; $49 monthly); extra seats $29

+Research and the draft live in one tool, which Surfer splits more often

+Yearly Starter at $39 is cheaper than Surfer Discovery if the caps fit

+Extra seats are a published $29, not a hidden quote

−Starter caps will bounce a real editorial calendar onto Professional

−Monthly is $49 / $129 / $299, so the yearly discount is the real price

Visit Frase →

Rank Math

Best for: WordPress sites that need schema, sitemaps and on-page SEO checks

PricingFree plugin; PRO €8.99/mo billed annually (ex VAT), first year often discounted

+Free plugin covers the on-page basics most sites actually need

+PRO at €8.99 a month yearly is a site cost, not a writer seat

+Schema and sitemaps are the job, and it does that job

−It is WordPress. Other CMSs need something else

−Content AI on paid plans is not the same product as Surfer's editor

Visit Rank Math →

Google Search Console

Best for: Seeing the queries you already get, before you buy a grader

PricingFree; you need to verify the property

+Actual impressions and clicks, not a model of the SERP

+No seat and no article cap

+The first place to look when a page "should rank" and does not

−It does not score a draft or write a brief

−Data lags and samples on large properties

Visit Google Search Console →

Google Keyword Planner

Best for: Checking whether a topic has demand before you open Surfer

PricingFree with a Google Ads account; you do not have to run ads

+No subscription

+Good enough to kill a topic that has no searches

+Sits next to Search Console in a sane workflow

−Ranges, not exact volumes, on a quiet Ads account

−It is not an optimizer

Visit Google Keyword Planner →

What it is

A content optimization tool either scores a draft against terms competitors already rank for, or implements on-page SEO on the site that publishes it. Surfer and Frase are graders with research around them.

Rank Math is a WordPress plugin that happens to sell Content AI on paid plans. Search Console is the click-and-impression log from Google. They stack. They do not replace each other.

Why it matters

The meter on the paid graders is seats and articles, not traffic. A $99 Surfer Standard seat that one writer uses on ten drafts a month is a different invoice from Rank Math PRO at €8.99 covering the site.

Buying both without Search Console is the usual waste: you optimize for a model of the SERP and never look at the queries you already get.

Key features to look for

What you are buying

A SERP grader, a WordPress plugin or raw query data. These are three jobs.

Seat versus site

Surfer and Frase bill people. Rank Math bills websites. Search Console bills nothing.

Article or credit caps

Yearly plans look cheap until the extra-article overage shows up. Read that line before you pick Starter.

CMS lock-in

Rank Math is WordPress. Graders are Google Docs and web editors. A Webflow site does not need Rank Math.

Whether the score is the work

A 90 in Surfer is not a published page. Someone still has to write and ship.

Pricing

Surfer, Frase and Rank Math publish list prices, checked 25 September 2026, while Google Search Console and Keyword Planner are free, so nobody here is quote-only. Surfer and Frase charge per seat, and yearly billing is lower than monthly, while Rank Math charges per site in euros, ex VAT, and first-year promotions sometimes undercut the standard rate.

The cheapest credible entry is free, and the cheapest paid plan is Rank Math PRO at €8.99 a month billed annually, less during first-year promotions. Among the graders, Frase Starter is $39 a month on a yearly plan and Surfer Discovery is $49.

The bill jumps at Frase Scale and Surfer Peace of Mind, and again on Frase monthly billing or a $29 extra seat.

Plan	Price	Best for
Surfer Discovery	$49/mo, billed yearly	Lowest yearly rate; monthly billing costs more
Surfer Standard	$99/mo, billed yearly	Yearly rate; monthly billing costs more
Surfer Pro	$182/mo, billed yearly	Yearly rate; monthly billing costs more
Surfer Peace of Mind	$299/mo, billed yearly	Highest listed yearly rate; monthly costs more
Frase Starter	$39/mo yearly ($49 monthly)	Caps push a full calendar onto Professional
Frase Professional	$103/mo yearly ($129 monthly)	The step up when Starter caps run out
Frase Scale	$239/mo yearly ($299 monthly)	Highest Frase plan, yearly or monthly
Frase extra seat	$29 extra seat	Published price for an extra seat
Rank Math PRO	€8.99/mo billed yearly ex VAT; first-year promos vary	Paid site plan; a free plugin also exists
Rank Math Business	€27.99/mo billed yearly ex VAT; first-year promos vary	Annual site plan above PRO
Rank Math Agency	€64.99/mo billed yearly ex VAT; first-year promos vary	For teams with client-site volume
Google Search Console	Free	You need to verify the property
Google Keyword Planner	Free	Wider volume ranges if the account is not spending

Mistakes to avoid

×Buying Surfer and skipping Search Console. The grader is a model. Console is what Google already showed you.

×Paying Frase monthly at $129 when yearly Professional is $103. The discount is the real list price.

×Installing Rank Math and calling the content strategy done. A green light in WordPress is not a brief.

Expert tips

→Open Search Console on the URL before you buy a grader. If the page already gets impressions on the term, the job is the draft, not another tool.

→On Surfer and Frase, read article caps on the cheap yearly plan. That is the upsell.

→Use Rank Math PRO if you are on WordPress and only need schema and on-page. Add Surfer when a writer needs a SERP checklist, not before.

The bottom line

Use Google Search Console and Keyword Planner first. They are free. Add Surfer Standard at $99 a month yearly when a writer needs a SERP-scored editor, or Frase yearly Starter at $39 if briefs matter more than the Surfer editor.

Put Rank Math on WordPress (free, or PRO at €8.99 a month yearly) for schema and on-page. Do not buy a grader to replace Console.

Frequently asked questions

What is the best free content optimization tool?

Google Search Console for queries you already get, Keyword Planner for demand, Rank Math's free plugin for WordPress on-page. None of those grades a draft against the live SERP the way Surfer does.

How much does Surfer cost?

Checked 25 September 2026 on yearly billing: Discovery $49, Standard $99, Pro $182, Peace of Mind $299 per month. Monthly billing is higher.

How much does Frase cost?

Checked 25 September 2026: yearly Starter $39 a month ($49 if you pay monthly), Professional $103 ($129 monthly), Scale $239 ($299 monthly). Extra seats $29.

Do I need Surfer if I have Rank Math?

Only if you want a SERP-based content score. Rank Math implements SEO on WordPress. Surfer tells a writer which terms to cover. Most sites need the plugin. Fewer sites need the grader.

Sources

Prices and plan details come from each vendor's own pricing page, re-checked by the Toolradar pricing tracker.