Decision Support · Side-by-side
Compare pricing, strengths, and use cases so it is easier to pick the right fit.
Change tools
For most legal professionals, Diligen wins on ease of use and fast contract review, while Harvey AI is the powerhouse for complex, end-to-end legal workflows. The single biggest difference: Diligen is a focused contract-analysis tool you can start using in a day, whereas Harvey is an enterprise-grade platform that requires significant setup but can automate entire legal processes.
Diligen
Harvey
Scores at a glance
Choose Diligen if
Choose Harvey if
Key differences
Facts side by side
| Diligen | Harvey | |
|---|---|---|
| Free plan | ||
| Mobile app | ||
| API access |
Common questions
Yes, Diligen is better for solo or small firms because it's simpler, faster to set up, and focused on contract review — the most common task. Harvey's enterprise pricing and complexity make it overkill and too expensive for a small practice.
No. Neither tool offers a mobile app. You need a desktop or laptop to use them.
Harvey is far better for legal research. It can search across legal databases, summarize cases, and generate memos with citations. Diligen does not do legal research at all.
With Diligen, you can upload documents and get results within an hour after account setup. With Harvey, expect weeks of onboarding, including security review, integration setup, and training sessions.
Both are highly secure with SOC2 compliance. Harvey also offers GDPR and HIPAA compliance, making it slightly better for firms handling healthcare or European data.
Diligen is the quick, easy contract-review specialist; Harvey is the powerful, pricey all-in-one legal AI platform for enterprises.
If you just need to review contracts faster and don't want a headache, start with Diligen. If you're at a large firm or corporate legal department and need a full AI assistant that can research, draft, and automate complex tasks, Harvey is worth the investment — just be ready for the setup and cost.
