BookStackSimple & Free Wiki Software
vs
CapacitiesA studio for your mind
Comparison · Knowledge Management · weekly run Nov 3
BookStack vs Capacities
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
BookStack is the stronger AI pick in Knowledge Management: it has a visibility score of 3.6 versus 2.2 for Capacities.
Choose BookStack if…
- You want the brand AI engines rank higher (3.6 vs 2.2)
- Book-like content organization
- Free and open-source with unlimited users
Choose Capacities if…
- Organizes information around real-world objects rather than flat files or folders
- Natural knowledge organization
AI visibility side by side
Latest weekly run · Nov 3
| Metric | BookStack | Capacities |
|---|---|---|
| Visibility score | 3.6% | 2.2% |
| Change vs last week | New | New |
| Rank in Knowledge Management | #22 | #31 |
| Share of voice | 1% | 0.6% |
| Mentions this run | 5 | 3 |
| Positive in AI answers | 40% | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
BookStack 0pp · Capacities 0pp over 0 weekly runs.
Engine by engine
BookStack leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
BookStackCapacities
Head to head in AI answers
0 engine answers name both brands
0BookStack ranked higher
0Capacities ranked higher
Features, pricing & fit
| Dimension | BookStack | Capacities |
|---|---|---|
| Pricing model | — | Flat tiers |
| Entry price | — | Free; paid from $9.99 / mo |
| Free plan | — | Yes |
| Deployment | Self-hosted | Desktop, web and mobile apps |
| Support | Documentation, Support plans, Community discussions | Active Discord community, Email support, Priority support for Believer subscribers |
| Founded | 2015 | 2022 |
| Headquarters | — | Freiburg im Breisgau, Germany |
| Employees | — | 1–10 |
| Funding | — | Accelerator-type deal (Media Lab Bayern) |
| Best for | Teams that want simple, self-hosted wiki software | Individuals who think for a living, such as writers, researchers, students, developers and founders |
Plans side by side
BookStack
Pricing not available.
Capacities
Capacities Basic$0free forever
Capacities Pro$9.99month
Capacities Believer$12.49month
Pros and cons
Themes from the AI answers that mention each brand
BookStack
- Book-like content organization
- Free and open-source with unlimited users
- Must be self-hosted and maintained by the user
Capacities
- Organizes information around real-world objects rather than flat files or folders
- Natural knowledge organization
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “BookStack vs Capacities”, https://slateindex.ai/compare/bookstack-vs-capacities, data of Nov 3, 2026. Licence: CC BY 4.0.