# GitBook vs Loopio: who uses which

On usedby, 37 companies use GitBook and 27 use Loopio. 1 company uses both, including Cisco. Counts include every proof level, job-post signals included; each company keeps its proof level on each side. Latest check 2026-11-13: 64 of 64 public lines checked.

## Side by side

|  | [GitBook](https://www.usedby.ai/tools/gitbook.md) | [Loopio](https://www.usedby.ai/tools/loopio.md) |
|---|---|---|
| Public customers | 37 | 27 |
| Confirmed | 16 | 13 |
| Observed | 20 | 14 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers (every proof level) | Fintech & Payments (4), Artificial Intelligence (3), DevTools & Infrastructure (3) | HR & Recruiting (3), Investment & VC (3), EdTech & E-learning (2) |
| Category | Enterprise search & knowledge | Enterprise search & knowledge |
| Security | SOC 2 Type II, ISO 27001 ([gitbook.com](https://www.gitbook.com/industries/security), checked 2026-11-13) | — |
| Your data | Not used to train models by default. ([gitbook.com](https://www.gitbook.com/industries/security), checked 2026-11-13) | — |
| Free trial | Free trial or free plan available. ([gitbook.com](https://www.gitbook.com/pricing), checked 2026-11-13) | — |
| Integrations | GitHub, GitLab, Slack, Intercom, Google Analytics, PostHog, Auth0, Okta, Linear, Segment, Jira, HubSpot ([gitbook.com](https://www.gitbook.com/integrations), checked 2026-11-13) | — |
| Pricing | Free: $0 /mo; Essential: from $65 per site/month; Ultimate: $249 per site/month; Enterprise: contact sales ([gitbook.com](https://www.gitbook.com/pricing), checked 2026-11-13) | — |

## Companies that use both

Every proof level counts; the proof level of each side is shown, strongest proofs first. The first public proof is not an adoption date.

| Company | Proof, GitBook | Proof, Loopio | First public proof, Loopio |
|---|---|---|---|
| [Cisco](https://www.usedby.ai/companies/cisco.md) | Observed | Observed | On or before November 2025 |

## Published results

Reviewed stories only; usedby did not measure the figures.

- GitBook: [Mozilla.ai](https://www.usedby.ai/case-studies/mozilla-ai-gitbook.md): story without a checked figure. (captured by usedby 2026-11-13)
- GitBook: [Tuum](https://www.usedby.ai/case-studies/tuum-gitbook.md): story without a checked figure. (captured by usedby 2026-11-13)
- Loopio: [Businessolver](https://www.usedby.ai/case-studies/businessolver-loopio.md): **50%+**: “RFP team contributes to 50%+ of new revenue won” (published 2017-12-05)
- Loopio: [Netskope](https://www.usedby.ai/case-studies/netskope-loopio.md): **10x**: “Completing RFP responses 10x faster” (published 2018-05-10)

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Source: https://www.usedby.ai/compare/gitbook-vs-loopio · How we check: https://www.usedby.ai/methodology