Compare RelativityOne, CS Disco, and Logikcull for eDiscovery

RelativityOne vs CS Disco vs Logikcull: Which Cloud eDiscovery Platform Fits Your Firm?

Estimated reading time: 9–12 minutes

Overview / Introduction

RelativityOne, CS Disco (DISCO), and Logikcull are among the most frequently evaluated cloud eDiscovery platforms by litigation teams, corporate legal departments, and legal service providers. This comparison highlights real differences in features, use cases, and user experience—and maps those choices to Microsoft 365 governance and automation—so you can make a confident, defensible selection.

Bottom line: RelativityOne is the enterprise workhorse for large, complex matters; DISCO emphasizes cloud-native speed, AI, and usability for mid-to-large matters; Logikcull excels in small-to-mid matters, investigations, and quick-turn reviews.

Products Compared

• RelativityOne — Enterprise-grade, highly customizable review with advanced analytics; common among large organizations and service providers. Users note power and occasional “clunkiness.” Document review score: 9.1 (G2). Sources: G2: Logikcull vs Relativity, G2: DISCO vs Relativity
• CS Disco (DISCO) — Cloud-native, AI-forward with Google-like search and fast performance; strong for modern teams handling mid-to-large matters. Document review score: 9.4 (G2). Sources: G2: DISCO vs Relativity, G2: DISCO vs Logikcull, DISCO SEC filing
• Logikcull — Simple, fast, easy to adopt; excellent for smaller matters, internal investigations, and quick-turn projects; fewer advanced features for very large/complex matters. Document review score: 9.3 (G2). Sources: G2: DISCO vs Logikcull, G2: Logikcull vs Relativity

Comparison Table

Sources: G2: DISCO vs Logikcull, G2: Logikcull vs Relativity, G2: DISCO vs Relativity

Key Takeaways

• RelativityOne is the enterprise standard for large, complex matters requiring deep customization and analytics.
• DISCO leads on speed, AI assistance, and user-friendly search for mid-to-large matters.
• Logikcull delivers fast, simple workflows for small-to-mid cases and investigations.
• Align your choice with Microsoft 365 Purview holds/collections to reduce downstream review volumes and cost.
• Total cost of ownership is driven by data volume, complexity, user counts, and training—not just license price.

Table of Contents

• Overview / Introduction
• Products Compared
• Comparison Table
• Key Takeaways
• Detailed Comparison
  • Features
  • Pricing
  • Integrations
  • Security
  • User Experience
• Use Cases / Best Fit For
• FAQ

Detailed Comparison

Features

• RelativityOne
  • Advanced analytics and AI across processing and review; powerful scripting and extensibility for complex matters. Source: G2
  • Highly customizable coding panels, privilege workflows, and QC structures.
  • Best when deep customization and analytics are mandatory.
• CS Disco (DISCO)
  • Cloud-native, AI-forward features; fast, Google-like search; continuous development. Sources: G2, G2
  • Best balance of power + simplicity for mid-to-large matters.
• Logikcull
  • Streamlined ingestion, automated culling, straightforward review; fewer advanced analytics for very large or complex cases. Sources: G2, G2
  • Best for fast, simple workflows and quick-turn matters.

Pricing

Specific pricing varies by contract and is not detailed in the cited sources. Typical components include:

• Data-based fees (per-GB ingestion or hosting)
• User/reviewer licenses and/or per-matter or bundled subscriptions
• Add-ons for analytics, productions, or advanced exports

Practical guidance:

• RelativityOne: Often part of broader enterprise/provider agreements, with more configuration overhead—valuable for customization but requiring governance and change management.
• DISCO and Logikcull: Emphasize transparent, cloud-native pricing aligned to usage and speed to value.
• Biggest TCO drivers: data volumes, case complexity, user counts, training/process change—not just sticker price.

Integrations

• RelativityOne: Cloud deployment with a legacy on-prem presence via partners; deep ecosystem and extensibility common in enterprise stacks. Source: G2
• CS Disco (DISCO): Cloud-native platform with modern integration posture and rapid feature iteration. Source: DISCO SEC filing
• Logikcull: Cloud-native, designed for fast adoption with minimal overhead; supports ingest from common sources through standard upload/import. Source: G2

Security

• Microsoft 365 alignment for all three:
  • Teams commonly use Microsoft Purview to place in-place holds (Exchange, SharePoint, OneDrive, Teams) and export to the review platform of choice.
  • Validate Azure AD/Entra ID SSO, conditional access, data residency, and encryption posture during vendor due diligence—especially for sensitive, cross-tenant matters.
• RelativityOne: Frequently paired with Purview holds/collections; strong fit when you need advanced, controlled workflows downstream. Source: G2
• DISCO: Streamlined from Purview export to AI-assisted review for secure, rapid analysis. Sources: G2, G2
• Logikcull: Works well when upstream governance reduces data sprawl; ideal for quick-turn reviews under existing M365 security baselines. Sources: G2, G2

User Experience

• RelativityOne: Robust, customizable review; steeper learning curve and sometimes “clunky” navigation for simple tasks. G2 review score: 9.1. Sources: G2, G2
• CS Disco (DISCO): Fast, intuitive, Google-like search; some users want more guidance on advanced search syntax. G2 review score: 9.4. Sources: G2, G2
• Logikcull: Simple and fast for organization and search; fewer robust search options, no straightforward random sampling without workarounds, and occasional rendering issues. G2 review score: 9.3. Sources: G2, G2

Use Cases / Best Fit For

• Best for large, complex, high-stakes matters: RelativityOne
  • Advanced analytics, custom workflows, granular controls for large reviewer teams.
  • Organizations ready to invest in training and governance realize the most value.
  • Sources: G2, G2
• Best for mid-to-large, modern teams favoring speed and usability: CS Disco (DISCO)
  • AI assistance, fast search, and streamlined review reduce friction and ramp time.
  • Sources: G2, DISCO SEC filing
• Best for small-to-mid matters, investigations, and quick-turn projects: Logikcull
  • Fast path from ingestion to review; ideal for lean teams.
  • Sources: G2, G2

FAQ

Which platform handles the largest and most complex cases?

RelativityOne is the standard for multi-jurisdictional or high-stakes matters requiring advanced analytics, custom workflows, and granular controls. Sources: G2: Logikcull vs Relativity, G2: DISCO vs Relativity

Which has the most user-friendly, AI-assisted review?

CS Disco (DISCO) is praised for speed and intuitive, Google-like search, with a 9.4 G2 review score (2025). Sources: G2, G2

What’s the best option for small teams or quick-turn investigations?

Logikcull offers speed and simplicity for small-to-mid matters and internal investigations, with fewer advanced features for very large/complex use cases. Sources: G2, G2

How do these platforms align with Microsoft 365 and Purview?

Many teams place in-place holds in Microsoft Purview (Exchange, SharePoint, OneDrive, Teams) and export to the review platform of choice. RelativityOne pairs well for advanced downstream analytics; DISCO accelerates the path from Purview export to AI-assisted review; Logikcull fits when upstream governance already reduces data sprawl. Sources: G2, G2

What drives total cost of ownership (TCO) the most?

Primary drivers include data volumes, case complexity, user counts, and the cost of training and process change. Use Purview retention labels/policies and upstream culling to reduce downstream review and hosting costs across all platforms.

Can you help map a platform choice to our Microsoft 365 environment?

Yes. Automated Intelligent Solutions designs defensible eDiscovery programs aligned to Microsoft 365: Purview holds/retention, Power Apps intake, Power Automate workflows, and repeatable collections/export pipelines for RelativityOne, DISCO, or Logikcull. Explore services or request a consultation: Contact Automated Intelligent Solutions.