Best AI SEO Software in 2026
Updated
In short: DefiniteSEO is ranked #1 of 33 as of 4 October 2026, ahead of Ahrefs and Frase. The best-ranked option with a free plan is Ahrefs. The lowest first paid tier on this page is DefiniteSEO at $0.42/mo.
AI SEO software brings together research, content, and monitoring capabilities for people working on search visibility. Compared on keyword research and competitor analysis, the entries also differ in content optimization, SEO content briefs, rank tracking, technical SEO audits, and publishing workflows. DefiniteSEO, Ahrefs, and Frase are among the options shown. Think about which tasks are central to your work: exploring search terms, improving content, monitoring performance, or checking technical issues. Free-plan availability and paid-from pricing provide cost details to consider alongside the capabilities you need.
33 AI SEO software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 DefiniteSEO iPhone + Android RecognisedPhone appDocumentedFree plan 7.9$0.42/mo Keyword research: advancedContent optimization: advancedRank tracking: none
- 2 Ahrefs No phone app RecognisedPhone appDocumentedFree plan 6.4$29/mo
- 3 Frase No phone app RecognisedPhone appDocumentedFree plan 6.4$19/mo
- 4 Semrush No phone app RecognisedPhone appDocumentedFree plan 6.4Free
- 5 NEURONwriter No phone app RecognisedPhone appDocumentedFree plan 6.3$1.58/mo
- 6 Otimizador.AI No phone app RecognisedPhone appDocumentedFree plan 6.2BRL 499/mo Keyword research: basicContent optimization: advancedRank tracking: daily
- 7 Mangools No phone app RecognisedPhone appDocumentedFree plan 6.1Free
- 8 SearchScore No phone app RecognisedPhone appDocumentedFree plan 6.1£199/mo Keyword research: noneContent optimization: basicRank tracking: weekly
- 9 MarketMuse No phone app RecognisedPhone appDocumentedFree plan 6.0Free
- 10 SpyFu No phone app RecognisedPhone appDocumentedFree plan 5.8$29/mo
- 11 Moz Pro No phone app RecognisedPhone appDocumentedFree plan 5.7$6.58/mo
- 12 PageOptimizer Pro No phone app RecognisedPhone appDocumentedFree plan 5.6$40/mo
- 13 Serpstat No phone app RecognisedPhone appDocumentedFree plan 5.6$50/mo
- 14 Botify No phone app RecognisedPhone appDocumentedFree plan 5.5
- 15 CiteVista No phone app RecognisedPhone appDocumentedFree plan 5.5 Keyword research: noneContent optimization: noneRank tracking: none
- 16 Content Harmony No phone app RecognisedPhone appDocumentedFree plan 5.5$50/mo
- 17 Outranking No phone app RecognisedPhone appDocumentedFree plan 5.5
- 18 Clearscope No phone app RecognisedPhone appDocumentedFree plan 5.4$129/mo
- 19 Oncrawl No phone app RecognisedPhone appDocumentedFree plan 5.4
- 20 Alli AI No phone app RecognisedPhone appDocumentedFree plan 5.3 Keyword research: basicContent optimization: advancedRank tracking: daily
- 21 Keyword Insights No phone app RecognisedPhone appDocumentedFree plan 5.3$1/mo
- 22 Scalenut No phone app RecognisedPhone appDocumentedFree plan 5.3$59/mo
- 23 SE Ranking No phone app RecognisedPhone appDocumentedFree plan 5.3$129/mo
- 24 Search Atlas Link Building Outreach No phone app RecognisedPhone appDocumentedFree plan 5.3$79/mo Keyword research: noneContent optimization: noneRank tracking: none
- 25 SEO Writing AI No phone app RecognisedPhone appDocumentedFree plan 5.3
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 Samsung Mobile US Press?
DefiniteSEO is ranked #1 of 33 with a score of 7.9. Ahrefs is second and Frase 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 mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.