Verdict
Choose Oncrawl when
- Technical SEO matters to you. Core capability: comprehensive audits, JS rendering, indexing, crawlability, internal linking, CWV and monitoring.
- AI-search / GEO matters to you. AI Search Lens explicitly measures AI-bot crawling, citation visibility, clicks, coverage and opportunities from real logs.
- GEO readiness matters to you. AI visibility and Content Lens support modern search readiness, intent coverage, semantic completeness and structured-data correlation; no evidence of direct optimization deployment.
- Measurement & tracking matters to you. Tracks crawl/log/ranking/traffic changes, historical data, bot behavior, alerts and visibility over time.
Verdict
Choose SparkToro when
- Value accessibility matters to you. Has a free plan and no-card free start, with paid tiers for richer data and teams.
- Free tools matters to you. Offers a free account/report entry point and 200 free API credits per new key, though free app data is preview-only.
Read the full reviews: Oncrawl and SparkToro.