Overview Leaderboard Methodology
Industry Report

Personal Knowledge Managers

Tools focused on individual note organization, linking, and retrieval to support personal productivity, research workflows, and long-term knowledge accumulation.

Brands tracked: 30
Brands analyzed: 30
Last updated: 2026-04-23
Model: OpenAI GPT-5
Prompts: 245
Total responses: 168
Top Brand Overall?
Obsidian
33/100

Highest overall AI Visibility Score in this industry.

LBA Leader?
Obsidian
0

Highest score on the LBA metric in this industry.

Authority Leader?
Obsidian
100

Highest score on the Authority metric in this industry.

TOM Leader?
Obsidian
100

Highest score on the TOM metric in this industry.

Personal Knowledge Managers is an emerging or highly fragmented category

No brand in Personal Knowledge Managers scored above 40 on overall AI visibility. That means AI assistants do not currently recommend specific brands for this category with any consistency. Either the category is too new or too regional for the models to have converged on a default set of answers, or the queries users ask don't lend themselves to brand-specific responses.

Brand Leaderboard All 30 Personal Knowledge Managers brands ranked

Ranked by overall AI Visibility Score (smoothed geometric mean of LBA, Authority, and TOM with an LBA-based floor on Authority and TOM, see methodology). Click any brand for the full report.

# Brand LBA Authority TOM Overall
1
Obsidian
obsidian.md
 0
100
100
33
2
Notion
notion.so
 0
64
92
27
3
Logseq
logseq.com
 0
26
81
19
4
Evernote
evernote.com
 0
14
48
12
5
Joplin
joplinapp.org
 0
12
19
8
6
Capacities
capacities.io
 0
10
16
7
7
Roam Research
roamresearch.com
 0
0
57
7
8
Tana
tana.inc
 0
6
28
7
9
Anytype
anytype.io
 0
4
17
5
10
Craft
craft.do
 0
2
26
5
11
DEVONthink
devontechnologies.com
 0
1
22
4
12
Reflect
reflect.app
 0
4
12
4
13
Bear
bear.app
 0
1
12
3
14
Amplenote
amplenote.com
 0
0
9
2
15
Heptabase
heptabase.com
 0
0
11
2
16
RemNote
remnote.com
 0
0
3
1
17
Agenda
agenda.com
 0
0
1
0
18
C
ConnectedText
connectedtext.com
 0
0
0
0
19
Dendron
dendron.so
 0
0
0
0
20
Mem
mem.ai
 0
0
1
0
21
Milanote
milanote.com
 0
0
0
0
22
NotePlan
noteplan.co
 0
0
0
0
23
Simplenote
simplenote.com
 0
0
0
0
24
Standard Notes
standardnotes.com
 0
0
1
0
25
TheBrain
thebrain.com
 0
0
1
0
26
TiddlyWiki
tiddlywiki.com
 0
0
1
0
27
Trilium Notes
triliumnotes.org
 0
0
0
0
28
UpNote
getupnote.com
 0
0
0
0
29
Workflowy
workflowy.com
 0
0
0
0
30
Zettlr
zettlr.com
 0
0
0
0

How is this calculated? Methodology

Every brand in this leaderboard is scored against the same set of 245 shared Personal Knowledge Managers prompts. The same prompts, same model, same iterations. So differences in scores reflect actual differences in AI visibility, not differences in measurement.

Overall AI Visibility Score
Smoothed geometric mean of LBA, Authority and TOM. Authority and TOM are floored at LBA × 0.1 before the geometric mean (the same floor used in the per-metric cards above, so brand cards and the composite tell the same story). Formula: composite = ((LBA + 5)(Authority + 5)(TOM + 5))^(1/3) - 5. The floor keeps brands the model clearly recognises but doesn't yet recommend from collapsing to zero, while a single genuinely weak metric still pulls the composite down. Full methodology.
Shared industry prompts
For Authority and TOM, all brands in the industry are scored against the same 245 category prompts (e.g. "best SEO tools for agencies"). This makes brand-to-brand comparisons valid - everyone faces identical inputs. LBA prompts are per-brand because they ask brand-specific questions.
Latent Brand Association (LBA)
5 brand probes + 1 control prompt, each run 5 times in recall mode (no web search). LBA = quality × meta × stability × share × recognition × 100. Read the full LBA methodology →
LLM Authority
50 organic category prompts (discovery, comparison, problem and transactional intents), each run once in recall mode and once in retrieval mode. Score = frequency × log-decayed prominence × intent weight, then 50/50 averaged across the two modes. Read the full Authority methodology →
Top of Mind (TOM)
15 high-volume discovery prompts (sourced from Keywords Everywhere search-volume data), each run 5 times in pure recall mode (no web). Score = frequency × (0.5 + 0.5 × log-prominence), volume-weighted. Read the full TOM methodology →