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Frequently Asked Questions
MarkBook is the world's largest free AI tools directory, with 116,000+ AI tools across 500+ categories. You can search, compare, filter by pricing, and see live rankings.
Yes. Searching, browsing, comparing, and reading rankings on MarkBook is 100% free with no signup.
Daily. New AI tools are added continuously, and rankings refresh based on live signals.
Visit markbook.top/submit — the review is free and usually takes 1-3 days.