Arca vs Curia
Arca
arca.legal
Curia
curia.caSide by side
| Figure | Arca | Curia |
|---|---|---|
| Price from | — | C$39/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 2 | 4 |
| Spec score · AI Legal Research Software | 8.5 (#2) | 8.1 (#9) |
| Headquarters | Arca’s own pages list 205 W 28th St, New York, NY 10001. | Toronto, Ontario, Canada |
| Integrations | The site names Word, Slack, Outlook, and Salesforce as enterprise integrations. | The privacy policy identifies Stripe as the third-party payment processor and Google Analytics for website usage measurement. |
| Product | Arca is a platform for deploying legal and compliance agents that perform research, intake and standard operating procedures. | Curia is an AI legal research workspace for Canadian lawyers, paralegals, law clerks, and legal teams. |
| Security | Arca states that it is SOC 2 Type II certified and GDPR compliant. | The privacy policy lists TLS/SSL encryption in transit and at rest, row-level security, hashed passwords, and regular security reviews and updates. |
| Support | Arca says enterprise deployments include dedicated support and offers demo contact through [email protected]. | The Pro plan includes priority support, and the site lists [email protected] as its contact email. |
Plans
In their own words
Curia
Curia is a web-based legal research workspace for Canadian lawyers, paralegals, law clerks, and legal teams. It searches case law from nine provinces and federal authorities; Quebec and the territories are not supported. Within a matter, users can keep documents, research, timeline events, drafts, and tasks together. Curia can prepare first-pass factums, memos, and letters with linked sources, then export them to Word or PDF. Uploaded documents can inform a matter analysis, with issues extracted, dates added to timelines, and contradictions flagged for review. The citation checker checks citation format and decision metadata matches, but not pinpoint accuracy, proposition support, good-law status, or research completeness. The free plan includes five credits without a credit card. Paid plans begin with Starter at C$39 a month, billed in CAD and cancellable anytime. Credit use varies: document chat answers cost 0.25 credits, most research and drafting actions cost 1, matter analysis costs 3, and settlement proposals cost 5. Curia says data and uploads are stored on servers in Canada and are not used to train models.