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Asymmetric Data
✓ verifiedPaid
Keyword clustering tool that groups terms by Google SERP overlap to turn a keyword list into a content plan.
550 visits/mo
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Duck.ai
✓ verifiedFree
Free, privacy-focused AI chat from DuckDuckGo offering anonymous access to popular chat models without saving conversations.
19M visits/mo
Pricing
$4 per 1,000 keywords
5,000 keywords: $20
100,000 keywords: $400
No public pricing
No public pricing
Core features
- ✦SERP-overlap keyword clustering
- ✦Article-grouping spreadsheet output
- ✦Rank and estimated-traffic data
- ✦Opportunity scoring per cluster
- ✦Support for most languages and countries
- ✦Pay-as-you-go credits (valid 12 months)
- ✦Free AI chat
- ✦Anonymous, privacy-preserving access
- ✦Choice of popular chat models
- ✦No conversation logging or training use
- ✦Video lessons
- ✦Revision notes
- ✦Quizzes
- ✦Flashcards
- ✦Exam-style questions
- ✦Past papers
Use cases
- →Cluster large keyword lists
- →Plan content and article structure
- →Prioritize topics by opportunity
- →Speed up SEO content strategy
- →Chatting with AI privately
- →Quick answers without an account
- →Using multiple AI models anonymously
- →Preparing for Maths and Science exams at KS3, GCSE, and A-Level.
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