Best SEO Content Optimization Software in 2026
Updated
In short: Ahrefs is ranked #1 of 26 as of 4 October 2026, ahead of Frase and GSEOeditor. The best-ranked option with a free plan is Frase. The lowest first paid tier on this page is Keyword Insights at $1/mo.
SEO content optimization tools help you plan and evaluate content with search visibility in mind. Frase, PageOptimizer Pro, and Thruuu lead the ranking, with MarketMuse and Ahrefs also among the early entries. Compared on content briefs, content scoring, keyword recommendations, search intent analysis, SERP analysis, and competitor gap analysis, the options offer several angles for assessing research and revision needs. Consider which stages of your writing process need support, from shaping a brief to reviewing a page against search results. Free plan availability and paid-from pricing round out the comparison, so you can weigh the features against your budget.
26 SEO content optimization software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 Ahrefs Top pick · 7.0 Free plan · $29/mo
#2 Frase Runner-up · 7.0 Free plan · $19/mo
#3 GSEOeditor Also great · 6.9 Free plan · $19/mo
- Free plan apiWeb
- Free plan
- Yes
- Paid from
- 29 /mo
RecognisedDocumentedFree planPlatforms$29/mofirst paid tier About AhrefsVisit site - Free planFree trial apiextensionWeb
- Free plan
- No
- Paid from
- 39 /mo
RecognisedDocumentedFree planPlatforms$19/mofirst paid tier About FraseVisit site - Free plan apiextensionWeb
- Free plan
- Yes
- Content scoring
- Yes
- Search intent analysis
- Yes
- Content briefs
- Yes
- Keyword recommendations
- Yes
RecognisedDocumentedFree planPlatforms$19/mofirst paid tier About GSEOeditorVisit site - Free planFree trial extensionWeb
- Free plan
- No
- Paid from
- 19 /mo
RecognisedDocumentedFree planPlatforms$1.58/mofirst paid tier About NEURONwriterVisit site - Free plan apiWeb
- Free plan
- No
- Paid from
- 13 /mo
- Search intent analysis
- Yes
- Content briefs
- Yes
- Keyword recommendations
- Yes
RecognisedDocumentedFree planPlatforms$13/mofirst paid tier About ThruuuVisit site - Free plan Web
- Free plan
- Yes
- Paid from
- 19 /mo
- Content scoring
- No
- Search intent analysis
- Yes
- Content briefs
- Yes
- Keyword recommendations
- Yes
RecognisedDocumentedFree planPlatforms$19/mofirst paid tier About RankPromptVisit site - Free planFree trial Web
- Free plan
- Yes
- Search intent analysis
- Yes
- Content briefs
- Yes
RecognisedDocumentedFree planPlatforms - apiextensionWeb
- Free plan
- No
- Paid from
- 40 /mo
- Search intent analysis
- Yes
- Content briefs
- Yes
RecognisedDocumentedFree planPlatforms$40/mofirst paid tier About PageOptimizer ProVisit site - apiWeb
- Free plan
- No
- Paid from
- 50 /mo
- Search intent analysis
- Yes
- Content briefs
- Yes
RecognisedDocumentedFree planPlatforms$50/mofirst paid tier About Content HarmonyVisit site - Web
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Free trial apiWeb
- Free plan
- No
- Paid from
- 49 /mo
- Content scoring
- Yes
- Search intent analysis
- Yes
- Content briefs
- Yes
- Keyword recommendations
- Yes
RecognisedDocumentedFree planPlatforms$49/mofirst paid tier About theStaccVisit site - Free trial Web
- Free plan
- No
- Search intent analysis
- Yes
- Content briefs
- Yes
RecognisedDocumentedFree planPlatforms$9/mofirst paid tier About WriterZenVisit site - Free trial Web
- Free plan
- No
- Paid from
- 129 /mo
- Search intent analysis
- Yes
- Content briefs
- Yes
RecognisedDocumentedFree planPlatforms$129/mofirst paid tier About ClearscopeVisit site - Web
- Free plan
- No
- Paid from
- 59 /mo
RecognisedDocumentedFree planPlatforms$59/mofirst paid tier About ScalenutVisit site - apiWeb
- Free plan
- No
RecognisedDocumentedFree planPlatforms$1/mofirst paid tier About Keyword InsightsVisit site - WebRecognisedDocumentedFree planPlatforms
- Free trial Web
- Free plan
- No
- Paid from
- 149 /mo
RecognisedDocumentedFree planPlatforms$1/mofirst paid tier About SEO.aiVisit site - Web
- Free plan
- No
- Paid from
- 189 /mo
RecognisedDocumentedFree planPlatforms$189/mofirst paid tier About SEOwindVisit site - Web
- Free plan
- Yes
- Paid from
- 29 /mo
- Search intent analysis
- Yes
- Content briefs
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- Content scoring
- Yes
- Keyword recommendations
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
- Paid from
- 19 /mo
- Search intent analysis
- Yes
- Content briefs
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
- Paid from
- 23 /mo
- Content briefs
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
- Paid from
- 99 /mo
- Search intent analysis
- Yes
- Content briefs
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
- Paid from
- 49 /mo
- Search intent analysis
- Yes
- Content briefs
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
- Content scoring
- Yes
- Search intent analysis
- Yes
- Content briefs
- Yes
- Keyword recommendations
- Yes
RecognisedDocumentedFree planPlatforms
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which SEO content optimization software is ranked first on Everything Xiaomi?
Ahrefs is ranked #1 of 26 with a score of 7.0. Frase is second and GSEOeditor third.
How many of these have a free plan?
7 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Keyword Insights has the lowest first paid tier we found: $1/mo.
How is this list ranked?
Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on. Paid placements never change a rank.