KMS LighthouseThe Way to Know
vs
ObsidianSharpen your thinking. The free and flexible app for your private thoughts.
Comparison · Knowledge Management · weekly run Nov 3
KMS Lighthouse vs Obsidian
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Obsidian is the stronger AI pick in Knowledge Management: it has a visibility score of 5.2 versus 2.4 for KMS Lighthouse.
Choose KMS Lighthouse if…
- You need SOC 2 Type II or ISO 27001 coverage
- You prefer a larger, established vendor (201–500 employees)
- Usability and advanced search
- Configurable workflows and feedback management
Choose Obsidian if…
- You want the brand AI engines rank higher (5.2 vs 2.4)
- Strong for personal knowledge management
- Maximum ownership of your files
AI visibility side by side
Latest weekly run · Nov 3
| Metric | KMS Lighthouse | Obsidian |
|---|---|---|
| Visibility score | 2.4% | 5.2% |
| Change vs last week | New | New |
| Rank in Knowledge Management | #27 | #17 |
| Share of voice | 0.9% | 1.1% |
| Mentions this run | 5 | 6 |
| Positive in AI answers | — | 50% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
KMS Lighthouse 0pp · Obsidian 0pp over 0 weekly runs.
Engine by engine
Obsidian leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
KMS LighthouseObsidian
Head to head in AI answers
0 engine answers name both brands
0KMS Lighthouse ranked higher
0Obsidian ranked higher
Features, pricing & fit
| Dimension | KMS Lighthouse | Obsidian |
|---|---|---|
| Pricing model | — | Per seat |
| Entry price | — | Free; paid from $4 per seat / mo |
| Free plan | — | Yes |
| Deployment | SaaS | Local desktop and mobile apps, with optional cloud Sync and Publish add-ons |
| Compliance | SOC 2 Type II, ISO 27001 | — |
| Support | — | Discord community, Discussion forum, Help site, Priority support with paid Sync and Publish plans |
| Founded | — | 2020 |
| Headquarters | Petach Tikva, Israel | Toronto, Ontario, Canada |
| Employees | 201–500 | 1–10 |
| Funding | Incubator/Accelerator (weXelerate) | Bootstrapped |
| Best for | Banks, insurers, health plans and public services, where every answer has to be right. | Individuals and small teams who want private notes stored locally as plain text files they can keep long term |
Plans side by side
KMS Lighthouse
Pricing not available.
Obsidian
Free$0forever
Sync$4per user per month, billed annually ($5 billed monthly)
Publish$8per site per month, billed annually ($10 billed monthly)
Pros and cons
Themes from the AI answers that mention each brand
KMS Lighthouse
- Usability and advanced search
- Configurable workflows and feedback management
- Integrations
- Well suited to midsize and large enterprises
Obsidian
- Strong for personal knowledge management
- Maximum ownership of your files
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “KMS Lighthouse vs Obsidian”, https://slateindex.ai/compare/kms-lighthouse-vs-obsidian, data of Nov 3, 2026. Licence: CC BY 4.0.