CosmoLex vs Relativity Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Jun 2026 8 min read

CosmoLex

0.0 (0 reviews)

CosmoLex is a cloud-based legal practice management software that integrates trust accounting, billing, and document management into a single platform to help law firms manage their entire practice efficiently.

Starting at $99/mo
Free Trial 10 days
VS

Relativity

0.0 (0 reviews)

Relativity is a comprehensive e-discovery and legal search platform designed to help you manage large volumes of data and find critical evidence during litigation and investigations.

Starting at --
Free Trial NO FREE TRIAL

Quick Comparison

Feature CosmoLex Relativity
Website cosmolex.com relativity.com
Pricing Model Subscription Custom
Starting Price $99/month Custom Pricing
FREE Trial ✓ 10 days free trial ✘ No free trial
Free Plan ✘ No free plan ✘ No free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment saas mobile saas on-premise mobile
Integrations Microsoft Office 365 Google Workspace Dropbox Box OneDrive NetDocuments LawPay QuickBooks Online Zoom Casemaker Microsoft 365 Slack Google Workspace Zoom Box Dropbox Salesforce Microsoft Teams EnCase Cellebrite
Target Users small-business mid-market solopreneur mid-market enterprise
Target Industries legal legal government financial-services
Customer Count 0 0
Founded Year 2013 2001
Headquarters Matawan, USA Chicago, USA

Overview

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CosmoLex

CosmoLex is a comprehensive legal practice management solution designed to run your entire law firm through a single login. You can eliminate the need for third-party accounting software because it includes built-in business and legal trust accounting (IOLTA) compliant with bar requirements. This integration ensures your financial records, time entries, and matter files always stay perfectly synchronized without manual data entry between different systems.

You can manage your practice from anywhere using the secure cloud interface or mobile app. The platform handles everything from client intake and calendar scheduling to automated billing and electronic payments. By centralizing your practice, you reduce the risk of accounting errors and ensure you never miss a billable minute, making it an ideal choice for solo practitioners and small to mid-sized law firms.

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Relativity

Relativity helps you manage the entire lifecycle of electronic discovery, from data collection and processing to final production. You can organize massive amounts of unstructured data, such as emails and chat logs, into searchable formats that make legal review faster and more accurate. The platform is designed to handle the most complex litigation and internal investigations by providing a centralized workspace for your legal teams.

You can use built-in communication surveillance and automated workflows to identify risks before they become legal liabilities. Whether you are a law firm, a corporation, or a government agency, the software scales to meet your data needs while maintaining strict security standards. It simplifies the way you interact with evidence so you can focus on building your case strategy.

Overview

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CosmoLex Features

  • Built-in Legal Accounting Manage your business and trust accounts directly within the platform to ensure total compliance without using external accounting software.
  • Legal Time & Billing Capture every billable second on the go and generate professional, branded invoices with just a few clicks from your dashboard.
  • Business Trust Management Maintain strict IOLTA compliance with automated safeguards that prevent common trust accounting errors and simplify your three-way reconciliations.
  • Document Management Store, organize, and retrieve all your case-related documents and files within specific matters for a paperless office experience.
  • CosmoLex Pay Accept credit cards and eChecks directly through your invoices to get paid faster while keeping processing fees transparent.
  • Client Portal Share documents and communicate securely with your clients through a private portal that enhances transparency and professional service.
  • Task & Calendar Sync Coordinate your entire team's schedule and deadlines with a centralized calendar that syncs with Outlook and Google.
  • Automated Workflows Standardize your firm's processes by creating repeatable task lists and workflows for different types of legal matters.
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Relativity Features

  • Relativity aiR. Use generative AI to summarize complex documents and identify key themes across your entire data set instantly.
  • Active Learning. Train the system to recognize relevant documents so you can prioritize the most important files for manual review.
  • Communication Surveillance. Monitor internal communications in real-time to detect potential misconduct or compliance violations before they escalate.
  • Automated Workflows. Set up automated triggers for data processing and imaging to eliminate manual errors and save your team hours.
  • Mobile Review. Access your workspace and review critical documents from your mobile device while you are traveling or in court.
  • Secure Data Sharing. Share sensitive evidence with outside counsel or experts through a secure, encrypted portal that tracks every interaction.

Pricing Comparison

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CosmoLex Pricing

Monthly Subscription
$99
  • Full Practice Management
  • Built-in Business Accounting
  • Legal Trust Accounting
  • Unlimited Document Storage
  • CosmoLex Pay Integration
  • Free Data Migration Support
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Relativity Pricing

Pros & Cons

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CosmoLex

Pros

  • Eliminates the need for separate QuickBooks subscriptions
  • Excellent trust accounting compliance and reporting features
  • All-in-one design prevents data duplication errors
  • Responsive customer support team based in North America

Cons

  • Initial setup requires significant time for data migration
  • Interface can feel cluttered due to many features
  • Mobile app has limited functionality compared to desktop
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Relativity

Pros

  • Unmatched scalability for handling multi-terabyte data sets
  • Highly customizable workflows for specific legal requirements
  • Powerful search capabilities with advanced filtering options
  • Robust security features that meet enterprise standards
  • Extensive ecosystem of third-party integrations and apps

Cons

  • Significant learning curve for new administrators
  • Higher cost compared to basic e-discovery tools
  • Interface can feel cluttered with too many options
  • Requires dedicated personnel for optimal system management
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