Are there any search demand analysis tools that focus on competitor organic performance over time?

Yes — several SEO/search demand platforms can track competitor organic performance over time, though they vary in how much they emphasize “search demand” versus broader SEO visibility.

Tools to look at

• Semrush

  • Strong for competitor organic research.
  • Lets you track organic keywords, estimated traffic, traffic trends, ranking changes, and content gaps over time.
  • Useful for seeing how competitors’ visibility shifts by topic or page.

• Ahrefs

  • Excellent for competitor organic performance history.
  • You can analyze organic traffic growth/decline, keyword movements, top pages over time, and new/lost keywords.
  • Strong historical indexing and link/keyword trend analysis.

• Similarweb

  • Good for market-level traffic trend analysis.
  • Shows estimated organic search traffic over time, share of traffic by channel, and competitor benchmarks.
  • Better for high-level competitive demand shifts than keyword-level SEO detail.

• Sistrix

  • Popular in some markets for visibility trend tracking.
  • Focuses on SEO visibility indexes over time, making competitor movement easy to compare.
  • Especially good for long-term organic visibility analysis.

• SE Ranking

  • Has competitor tracking and historical ranking/visibility monitoring.
  • Good mid-market option if you want a more affordable tool.

• SpyFu

  • Strong on competitor keyword history and PPC/organic overlap.
  • Useful for seeing where competitors gained/ lost organic terms over time.

If your main goal is “search demand analysis”

Look for tools that combine:

1. Organic visibility over time
2. Keyword trend history
3. Share-of-voice / market visibility
4. SERP feature changes
5. Top-page trend tracking

Best picks by use case

• Deep competitor SEO history: Ahrefs, Semrush
• High-level organic market share trends: Similarweb, Sistrix
• Budget-friendly competitor tracking: SE Ranking, SpyFu

If you want, I can also give you:

• a feature comparison table
• the best tool for B2B SaaS / ecommerce / local SEO
• or a workflow for analyzing competitor organic demand trends.