Signal-by-signal breakdown
| Signal | Mem | Obsidian |
|---|---|---|
| Signal Score (overall) | 63.2 | 81.9 ✓ |
| Citation Score | 61 | 84 ✓ |
| Trust Score | 64 | 82 ✓ |
| Entity Strength | 62 | 85 ✓ |
| Coverage Score | 57 | 79 ✓ |
| Source Diversity | 60 | 80 ✓ |
| Consistency | 63 | 83 ✓ |
| Freshness | 82 ✓ | 77 |
| Expert Mentions | 66 | 81 ✓ |
Mem- Founded
- 2019
- HQ
- San Francisco, California
- Category rank
- #6
Obsidian- Founded
- 2020
- HQ
- Toronto, Canada
- Category rank
- #1
Which should you choose?
Choose Mem if…
- →People who capture constantly and organize rarely
- →Users who want AI search and summarization over their own notes
- →Early adopters testing AI-native knowledge tools
Choose Obsidian if…
- →Writers and researchers building a long-term knowledge base
- →Users who want their notes stored as local files they control
- →People who extend a tool with community plugins and themes
Frequently asked questions
Which has better AI visibility, Mem or Obsidian?
Obsidian has stronger AI visibility, with a Signal Score of 81.9 versus 63.2 for Mem — a 18.7-point gap. AI engines cite and recommend Obsidian more consistently.
What is Mem's AI visibility score?
Mem has a Top Citation Signal Score of 63.2 out of 100 (Emerging), measured across note-taking apps buyer questions in AI answers.
What is Obsidian's AI visibility score?
Obsidian has a Top Citation Signal Score of 81.9 out of 100 (Strong Signal), measured across note-taking apps buyer questions in AI answers.
How is Mem vs Obsidian measured for AI visibility?
Both brands are scored on Top Citation Signal's eight signals — citation, trust, entity strength, coverage, source diversity, consistency, freshness, and expert mentions — from real answers given by AI engines with live web search. The comparison is independent and not pay-to-play.
How does your brand score?
See exactly how AI engines cite and recommend your business — the same way we scored Mem and Obsidian. Free to start with a Google sign-in.
More note-taking apps comparisons
Want a head-to-head we haven't built yet? Ask us to create it — free, and usually live within days.