SEO Algorithm Keyword Clustering vs Topvisor

SEO Algorithm Keyword Clustering is a web tool for grouping keyword lists through word stems, AI semantic analysis, or Google-result overlap. CSV and TXT uploads are supported, including the Keyword,Volume format. Stem clustering groups words by roots and is free for up to 200 keywords. AI Semantic looks for synonyms, context, and changes in intent that stemming may miss. SERP-based clustering fetches Google’s live top 10 results for each keyword and groups terms sharing URLs; those results are not cached. Users can choose a Google region or enter a city, region, and country, then set strictness to Loose, Normal, or Tight. The editor allows dragging keywords, merging or splitting groups, and creating groups. Results can be filtered by Commercial, Informational, Transactional, Navigational, or Local intent and sorted by size, alphabetically, intent, or volume. Exports are available in CSV, XLSX, and Google Sheets formats. The Stems plan costs nothing, with no signup or credits.

Topvisor tracks search rankings across Google, Yandex, Yandex.com, Bing, Seznam, YouTube, App Store, Google Play and VK. Checks can target search locations and languages, with desktop and mobile results. Scheduled checks can email detailed reports, and projects can track up to 250 competitor sites; up to five competitors per project can be tracked for free. Teams can share projects with guest access and send selected reports to clients through guest links. Projects and checks and reports remain accessible when the account balance is zero. Projects and keywords are listed as unlimited, but checks consume account balance and only the latest check per day is stored. Connections include Yandex.Metrica, Google Analytics, Yandex.Webmaster and Google Search Console. Topvisor describes its API as free and unlimited on all plans for project management and data retrieval. The XS plan is free; paid plans start at $29 a month. Its privacy policy says personal-data databases are located in the Russian Federation.