# Ironclad vs Spellbook: who uses which

On usedby, 58 companies use Ironclad and 27 use Spellbook. 1 company uses both, including Dropbox. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-08: 80 of 85 public lines checked.

## Side by side

|  | [Ironclad](https://www.usedby.ai/tools/ironclad.md) | [Spellbook](https://www.usedby.ai/tools/spellbook.md) |
|---|---|---|
| Public customers | 58 | 27 |
| Confirmed | 33 | 13 |
| Observed | 19 | 14 |
| Signals (job posts) | 6 | 0 |
| Top industries of customers | DevTools & Infrastructure (7), Sales Tech & CRM (5), Media & Publishing (4) | Legal & Compliance (2), Consumer Goods (1), DevTools & Infrastructure (1) |
| Category | Legal AI | Legal AI |
| Data processing terms | A data processing agreement is available. ([ironcladapp.com](https://ironcladapp.com/security), checked 2026-10-03) | — |
| Security | — | SOC 2 Type II, HIPAA ([trust.spellbook.com](https://trust.spellbook.com/), checked 2026-10-08) |
| Free trial | — | Free trial or free plan available. ([spellbook.com](https://spellbook.com/pricing), checked 2026-10-08) |
| Integrations | — | Slack, iManage, OneDrive, Dropbox, SharePoint, Google Drive ([spellbook.com](https://spellbook.com/integrations), checked 2026-10-08) |

## Companies named on both

Confirmed or observed on each side. The first public proof is not an adoption date.

| Company | First public proof, Ironclad |
|---|---|
| [Dropbox](https://www.usedby.ai/companies/dropbox.md) | On or before October 2024 |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Ironclad: [Vinted](https://www.usedby.ai/case-studies/vinted-ironclad.md): **120 users**: “120 users across 12 workflows” (published 2025-09-23)
- Ironclad: [Vontier](https://www.usedby.ai/case-studies/vontier-ironclad.md): **3-5 days**: “Now for complex agreements, “It’s more like 3-5 days.”” (published 2026-01-05)
- Spellbook: [KMSC Law LLP](https://www.usedby.ai/case-studies/kmsc-law-llp-spellbook.md): **an extra hour a day**: “Spellbook probably helps me bill an extra hour a day. Maybe more.” (captured by usedby 2026-10-08)
- Spellbook: [Elevare Law](https://www.usedby.ai/case-studies/elevare-law-spellbook.md): story without a checked figure. (captured by usedby 2026-10-08)

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