Best AI SEO Software in 2026
Updated
In short: DefiniteSEO is ranked #1 of 33 as of 4 October 2026, ahead of Frase and Ahrefs. The best-ranked option with a free plan is Frase. The lowest first paid tier on this page is DefiniteSEO at $0.42/mo.
Search-focused workflows can bring research, content work, and ongoing monitoring together in AI SEO software. Compare keyword research and competitor analysis with content optimization and SEO content briefs; rank tracking and technical SEO audits cover other parts of the work. Publishing workflows, free-plan availability, and paid-from pricing add useful points to weigh. The ranking begins with Ahrefs, DefiniteSEO, and Semrush, with SpyFu and Moz Pro also among the early entries. Consider which mix of research, optimization, publishing, and tracking capabilities fits the SEO tasks you need to handle.
33 AI SEO software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 DefiniteSEO Top pick · 7.7 Free plan · $0.42/mo
#2 Frase Runner-up · 7.0 Free plan · $19/mo
#3 Ahrefs Also great · 6.9 Free plan · $29/mo
- Free planFree trial AndroidapiextensioniOSLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
- Paid from
- 4.99 /mo
- Keyword research
- advanced
- Content optimization
- advanced
- Rank tracking
- none
- Technical SEO audits
- advanced
RecognisedDocumentedFree planPlatforms$0.42/mofirst paid tier About DefiniteSEOVisit site - Free planFree trial apiextensionWeb
- Free plan
- No
- Paid from
- 39 /mo
RecognisedDocumentedFree planPlatforms$19/mofirst paid tier About FraseVisit site - Free plan apiWeb
- Free plan
- Yes
- Paid from
- 29 /mo
RecognisedDocumentedFree planPlatforms$29/mofirst paid tier About AhrefsVisit site - Free planFree trial extensionWeb
- Free plan
- No
- Paid from
- 19 /mo
RecognisedDocumentedFree planPlatforms$1.58/mofirst paid tier About NEURONwriterVisit site - Free plan api
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Free plan Web
- Free plan
- Yes
- Keyword research
- basic
- Content optimization
- advanced
- Rank tracking
- daily
- Technical SEO audits
- advanced
RecognisedDocumentedFree planPlatformsBRL 499/mofirst paid tier About Otimizador.AIVisit site - Free plan Web
- Free plan
- Yes
- Keyword research
- none
- Content optimization
- basic
- Rank tracking
- weekly
- Technical SEO audits
- basic
RecognisedDocumentedFree planPlatforms£199/mofirst paid tier About SearchScoreVisit site - Free plan api
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Free planFree trial Web
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - apiWeb
- Free plan
- Yes
- Paid from
- 29 /mo
RecognisedDocumentedFree planPlatforms$29/mofirst paid tier About SpyFuVisit site - Free trial extensionWeb
- Free plan
- No
RecognisedDocumentedFree planPlatforms$6.58/mofirst paid tier About Moz ProVisit site - apiextensionWeb
- Free plan
- No
- Paid from
- 40 /mo
RecognisedDocumentedFree planPlatforms$40/mofirst paid tier About PageOptimizer ProVisit site - apiWeb
- Free plan
- No
- Paid from
- 50 /mo
RecognisedDocumentedFree planPlatforms$50/mofirst paid tier About Content HarmonyVisit site - Web
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - WebWindowsmacOS
- Free plan
- No
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- Keyword research
- none
- Content optimization
- none
- Rank tracking
- none
- Technical SEO audits
- basic
RecognisedDocumentedFree planPlatforms - Free trial Web
- Free plan
- No
- Paid from
- 129 /mo
RecognisedDocumentedFree planPlatforms$129/mofirst paid tier About ClearscopeVisit site - api
- Free plan
- Yes
- Paid from
- 50 /mo
RecognisedDocumentedFree planPlatforms$50/mofirst paid tier About SerpstatVisit site - apiRecognisedDocumentedFree planPlatforms
- Web
- Free plan
- No
- Paid from
- 79 /mo
- Keyword research
- none
- Content optimization
- none
- Rank tracking
- none
- Technical SEO audits
- none
RecognisedDocumentedFree planPlatforms$79/mofirst paid tier About Search Atlas Link Building OutreachVisit site - Web
- Free plan
- No
- Keyword research
- basic
- Content optimization
- advanced
- Rank tracking
- daily
- Technical SEO audits
- basic
RecognisedDocumentedFree planPlatforms - apiRecognisedDocumentedFree planPlatforms
- Web
- Free plan
- No
- Paid from
- 59 /mo
RecognisedDocumentedFree planPlatforms$59/mofirst paid tier About ScalenutVisit site - Web
- Free plan
- Yes
- Paid from
- 19 /mo
RecognisedDocumentedFree planPlatforms - api
- Free plan
- No
- Paid from
- 2,500 /mo
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 AI SEO software is ranked first on Everything Xiaomi?
DefiniteSEO is ranked #1 of 33 with a score of 7.7. Frase is second and Ahrefs third.
How many of these have a free plan?
9 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, DefiniteSEO has the lowest first paid tier we found: $0.42/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.