Every category where a model named BookStack for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.

Category	Function	Share	Rank	Negative rate	Labels	Quadrant	Since September 2026
IT documentation	IT operations and endpoint	13%	4 of 92	5%	20	accepted challenger

Movement

This is the first edition on this tier, so no move can be computed for BookStack yet. From the next edition this section shows, per buyer segment and per category, whether its share moved by more than the measured noise floor.

By model

How each model treated BookStack across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.

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Model	First choice	Alternative	Mention	Negative	Labels
Claude Haiku 4.5	1	0	0	0	1
GPT-5.4 mini	0	1	0	0	1
Gemini 3.5 Flash	1	3	1	1	6
Perplexity Sonar	0	0	0	0	0
Grok 4.1 Fast	1	2	0	0	3
Mistral Small	0	0	0	0	0
DeepSeek V4 Flash	1	0	0	0	1
Llama 4 Maverick	0	0	1	0	1
Qwen 3.7 Flash	0	2	0	0	2
Kimi K2	2	0	0	0	2
GLM 4.7 FlashX	1	1	0	0	2
MiniMax M2.5	0	0	0	0	0
GPT-6 Luna	1	0	0	0	1
Muse Glimmer 30B	0	0	0	0	0

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.

FramingLabels by classFirst choices

Direct2 labelsNone

Paraphrase3 labelsNone

Comparative7 labelsNone

Budget-constrained21 labels12

Scale-constrained2 labelsNone

Negative12 labels1not counted in share

First choiceAlternativeMentionNegative47 labels in all, every segment counted; 12 of the 13 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“Start with BookStack (free) if you can self-host it. It's purpose-built for IT documentation, has no hidden costs” DeepSeek V4 Flash · IT documentation · budget prompt · first choice

“Best on a tight budget: BookStack—if your team can host and maintain it. It’s free, open-source, and self-hosted” GPT-6 Luna · IT documentation · budget prompt · first choice

“If you have technical resources, BookStack offers the best value (completely free with excellent features)” Kimi K2 · IT documentation · budget prompt · first choice

“Safer Alternatives to Consider | Open source/self-hosted | BookStack, DokuWiki, Outline | No vendor lock-in” Kimi K2 · IT documentation · negative prompt · first choice

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“Open-source projects like BookStack, Wiki.js, or ITFlow... they come with a distinct warning label” Gemini 3.5 Flash · IT documentation · negative prompt · soft negative

Named alongside

The products named in the same answers as BookStack, over the 47 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and BookStack was named but was not.

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ProductSame answerTook the first choice insteadHead to head

Confluence38 of 473Compare →

Notion35 of 475Compare →

IT Glue33 of 474Compare →

Hudu29 of 4716Compare →

Wiki.js12 of 470Not among the top eight

Document36011 of 471Compare →

DokuWiki10 of 470Not among the top eight

Outline10 of 470Not among the top eight

Scribe9 of 471Not among the top eight

Docusaurus9 of 470Compare →

A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named BookStack. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 46 of the 47 answers that named BookStack and are not a share of its labels.

Domains cited

ferndesk.com26

ones.com17

reddit.com16

flamingo.run15

g2.com15

medium.com14

aimultiple.com12

document360.com12

pageloop.ai12

clickup.com10

149 of the 149 domain citations in answers naming BookStack came from somebody else's page.

Pages cited

ferndesk.com/blog/best-it-documentation-software24

aimultiple.com/it-documentation-software12

medium.com/@ivanpalii/6-best-it-documentation-software-tools-c6a6e10d0c4612

pageloop.ai/blog/best-it-documentation-software-tools12

atera.com/blog/best-it-documentation-software8

syncmonkey.com/best-it-documentation-software8

adoc-studio.app/blog/choosing-a-documentation-tool7

clickup.com/blog/it-documentation-software7

Pages are listed as the models cited them.

Search and answers

bookstackapp.com is not in Google's top ten for any of the category's searches. In the answers, BookStack takes 13% of first choices and Hudu takes 17%.

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In search

Google, US estimates

Position for “it documentation platform”

–

not in the top ten

Position for “it documentation platforms”

–

not in the top ten

Searches for its name, Google: 12,100 a month (“bookstack”)
AI search demand for its name, est.: 98 a month
Organic visits to its site: about 9,396 a month
Searches its site ranks for: 229 · 50 in the top three
Sites linking to it: 3,177
Paid Google search: No ads found in the estimate; that does not mean it runs none

Ads on Google

None found in Google's ad transparency records for the US

In answers

This edition

Share of first choices

13%

rank 4 of 92 in IT documentation

Segment leader

17%

Hudu

First choices: 12 across its categories
Named in: 47 answers
Its own site cited: in 46 of the answers that named it

Search figures are US estimates from DataForSEO, read September 28, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.

What it publishes

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Addresses on bookstackapp.com

241

subdomains included

Content

152

counted in the table below

Documentation

Product · Integration

0 · 0

Kind	Pages	Last 90 days	2025-11 to 2026-10	Latest	Categories named
Blog	149	undated
Comparison	3	undated

How it is countedHide how it is counted

Every page bookstackapp.com exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. Read October 5, 2026.

Follow BookStack

An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.

Already following? Everything you follow, with a stop for each.

The company

BookStack is its own company.

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In its own words

Stated by the vendor, not checked

Positioning: A simple, open-source, self-hosted, easy-to-use platform for organising and storing information.
bookstackapp.com
For: self-hosted & enterprise environments
bookstackapp.com
Price stated: There is no cost to downloading and installing your own instance of BookStack. bookstackapp.com
Free plan or trial: There is no cost to downloading and installing your own instance of BookStack. bookstackapp.com
Certifications: MIT licensed
Not stated on the pages read: Starting price, integrations, hosting, customers

What BookStack's own pages state, read October 5, 2026: bookstackapp.com, bookstackapp.com/docs/admin/security. A claimed page can correct any of them.

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when BookStack's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as BookStack, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

What a new claim receivesHide what a new claim receives

A new claim receives the current edition's vendor brief for BookStack by email, built from the raw record of the edition. It shows:

where BookStack is named, by buyer and by framing, and which cells hold its first choices;
the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
its vocabulary against the segment leader's, and the pages the models cited;
who was chosen in the answers that did not name BookStack, and every reason the record gives;
a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
one page of published figures cleared to show a buyer.