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12 Best Diligen Alternatives in 2026, Free Options Included

Explore 12 alternatives to Diligen, vetted by our editors with real user reviews, pricing, and feature comparisons.

The 12 free Diligen alternatives buyers consider most

Quick answer

The strongest Diligen alternatives right now are Legartis, Zuva DocAI and Definely. Legartis takes the top spot with a SpotScore of 7.9. Compare the full set of 12 on score, rating, and price below.

Ready to move on from Diligen? These 12 contract review AI software alternatives are the picks worth testing first. Our ranking leans on SpotScore, which weighs verified satisfaction against market presence, then star ratings and pricing model. Editors check each tool. Start with the table for a fast read, then go section by section below.

ProductSpotScoreRatingPricingBest for
LegartisEfficiency, security and value-driven legal decisions.7.9Not yet ratedFreeFree Trial · Quotation Basedsmall & mid-size businesses
Zuva DocAITransforming contracts with powerful AI capabilities.7.6Not yet ratedFreeFreemium · Subscriptionteams of all sizes
DefinelyIn-document contract review tooling for complex agreements—Not yet ratedQuotation Basedmid-size companies
DraftWiseContract drafting and negotiation from a firm's own precedent—Not yet ratedQuotation Basedmid-size companies
Genie AIAI contract drafting and review with an open template library—Not yet ratedFreeFreemiumsmall businesses
ThoughtRiverPre-signature contract review and risk scoring—Not yet ratedQuotation Basedmid-size companies
HarveyLegal AI for contract analysis and professional services work—Not yet ratedQuotation Basedenterprises
LegalOnAI contract review built on lawyer-written playbooks—Not yet ratedQuotation Basedmid-size companies
Robin AIContract review, search and obligation tracking for legal teams—Not yet ratedQuotation Basedteams of all sizes
LuminanceContract drafting, negotiation and compliance across the enterprise—Not yet ratedQuotation Basedteams of all sizes
IvoAI contract review for in-house legal teams—Not yet ratedQuotation Basedmid-size companies
TermScoutContract certification and market-standard benchmarking—Not yet ratedQuotation Basedmid-size companies

7.9

SpotScore

Legartis - eDiscovery Software

Legartis

Efficiency, security and value-driven legal decisions.

Best for: SMB teams · Mid-market

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What is Legartis?

Legartis is the ultimate platform for digital legal contracts that harnesses the power of AI. It helps your team to automatically review and analyse documents, quickly extract confidential data in a secure environment, and quickly make value-driven legal decisions. It promotes maximum ...

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Free Trial·

Legartis offers custom pricing plan

7.6

SpotScore

Zuva DocAI - Contract Management Software

Zuva DocAI

Transforming contracts with powerful AI capabilities.

Best for: SMB teams · Mid-market · Enterprise

Try for Free

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What is Zuva DocAI?

Zuva DocAI is the perfect AI platform to integrate contract intelligence into applications without the need for extensive development or infrastructure. Our intuitive Admin Console quickly generates tokens for easy access to API endpoints. Documents can be quickly uploaded to the file cache and ...

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Starts from $1.25, also offers free forever plan

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Definely - Logo

Definely

In-document contract review tooling for complex agreements

Best for: Mid-market

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What is Definely?

Definely works inside Microsoft Word, surfacing defined terms, cross-references and related provisions without leaving the document, so lawyers can review long agreements without losing their place.

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Definely offers custom pricing plan

DraftWise - Logo

DraftWise

Contract drafting and negotiation from a firm's own precedent

Best for: Mid-market

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What is DraftWise?

DraftWise surfaces a firm's previously negotiated language while drafting and reviewing, letting lawyers compare proposed terms against what they have accepted before.

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DraftWise offers custom pricing plan

Genie AI - Logo

Genie AI

AI contract drafting and review with an open template library

Best for: SMB teams

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What is Genie AI?

Genie AI drafts and reviews contracts against an open library of legal templates, aimed at startups and small legal teams that need agreements produced and checked without external counsel.

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ThoughtRiver - Logo

ThoughtRiver

Pre-signature contract review and risk scoring

Best for: Mid-market

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What is ThoughtRiver?

ThoughtRiver reads inbound contracts before signature, scores them against a company's risk position and flags the clauses that need negotiation, aimed at in-house legal teams handling high contract volume.

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ThoughtRiver offers custom pricing plan

Harvey - Logo

Harvey

Legal AI for contract analysis and professional services work

Best for: Enterprise

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What is Harvey?

Harvey applies large language models to legal work including contract review and analysis, research and drafting, and is used by law firms and in-house legal departments.

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Harvey offers custom pricing plan

LegalOn - Logo

LegalOn

AI contract review built on lawyer-written playbooks

Best for: Mid-market

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What is LegalOn?

LegalOn reviews contracts against playbooks authored by practising lawyers, flagging risky or missing clauses and suggesting revisions. It covers a range of agreement types for in-house legal teams.

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LegalOn offers custom pricing plan

Robin AI - Logo

Robin AI

Contract review, search and obligation tracking for legal teams

Best for: SMB teams · Mid-market · Enterprise

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What is Robin AI?

Robin AI reviews, analyses and finalises contracts for enterprise legal teams, with a chat interface for interrogating a document, advanced search across thousands of contracts that automatically detects contract types and key terms, obligation tracking with alerts for deadlines and compliance, ...

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Robin AI offers custom pricing plan

Luminance - Logo

Luminance

Contract drafting, negotiation and compliance across the enterprise

Best for: SMB teams · Mid-market · Enterprise

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What is Luminance?

Luminance automates contract work end to end — drafting and generation, AI-assisted negotiation review inside Microsoft Word, enterprise-wide contract analysis, compliance monitoring, and discovery for litigation. It uses a multi-model architecture the company describes as a panel of judges to ...

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Luminance offers custom pricing plan

Ivo - Logo

Ivo

AI contract review for in-house legal teams

Best for: Mid-market

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What is Ivo?

Ivo reviews contracts against a team's own positions and issue lists, producing redlines and summaries inside Word, aimed at in-house counsel handling repetitive commercial agreements.

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Ivo offers custom pricing plan

TermScout - Logo

TermScout

Contract certification and market-standard benchmarking

Best for: Mid-market

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What is TermScout?

TermScout analyses commercial contracts and certifies how favourable their terms are relative to market standard, letting buyers and sellers see where an agreement sits against comparable deals.

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TermScout offers custom pricing plan

Who competes with Diligen?

Diligen competes with 12 other contract review AI software tools tracked on Spotsaas. The closest by feature overlap are Legartis, Zuva DocAI and Definely. Each is compared against Diligen on rating, pricing and feature coverage below.

Sites and apps like Diligen

Searches for "sites like Diligen" and "apps like Diligen" land on the same set of options as "Diligen alternatives" — the 12 options below cover both, whether you want a like-for-like replacement or something lighter.

Why each of these made the list

Legartis7.9Best for small & mid-size businesses

AI-powered document analysis

Watch for: Limited customization options

Zuva DocAI7.6Best for teams of all sizes

AI contract intelligence

Watch for: Limited to contract management

DefinelyBest for mid-size companies
DraftWiseBest for mid-size companies
Genie AIBest for small businesses
ThoughtRiverBest for mid-size companies
HarveyBest for enterprises
LegalOnBest for mid-size companies
Robin AIBest for teams of all sizes
LuminanceBest for teams of all sizes
IvoBest for mid-size companies
TermScoutBest for mid-size companies

What counts when comparing Diligen alternatives

Looking at the 12 contract review AI software alternatives through the data: 3 offer a free tier.

How we ranked these.

Frequently Asked Questions (FAQs)

Stuck on something? We're here to help with all the questions and answers in one place.

The top-rated alternatives to Diligen are Legartis, Zuva DocAI, Definely. Compare all 12 alternatives side-by-side above.

Migration difficulty depends on how deeply Diligen is integrated into your workflows. Most alternatives offer data export/import tools and dedicated onboarding support. We recommend narrowing to 2–3 options, running a free trial, and checking each vendor's migration guides before committing.

Which Diligen alternative should you pick?

  • On a budget / just exploring: start with a free tier — Legartis, Zuva DocAI and Genie AI let you evaluate without paying upfront.
  • Want the safest pick: Legartis has the highest Spotsaas Score (7.9) in this list — a strong default if you're unsure.

Migrating away from Diligen

Before you move off Diligen, export your existing data and confirm your new tool can import it. Check feature parity for the workflows you depend on, then run a short pilot on a free tier or trial before rolling it out. Most tools above offer a free way to test, so you can validate the fit before paying. Keep your Diligen account active until the migration is done.

Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].