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Nuix eDiscovery vs kCura Relativity comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

kCura Relativity
Ranking in eDiscovery
5th
Average Rating
8.0
Reviews Sentiment
8.1
Number of Reviews
7
Ranking in other categories
No ranking in other categories
Nuix eDiscovery
Ranking in eDiscovery
7th
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the eDiscovery category, the mindshare of kCura Relativity is 5.5%, up from 5.3% compared to the previous year. The mindshare of Nuix eDiscovery is 3.7%, down from 5.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
eDiscovery Mindshare Distribution
ProductMindshare (%)
kCura Relativity5.5%
Nuix eDiscovery3.7%
Other90.8%
eDiscovery
 

Featured Reviews

HR
Legal Associate at Elevate
Easy to categorize documents and offers transparent view of documents
I found Relativity very useful because it's easy to categorize documents. If you get more complex litigation, like around 500,000 or 1,000,000 documents, it's easier to categorize them in Relativity. So, it's a more powerful tool for reviewing documents. I haven't faced any problems using Relativity yet. I found it very useful.
AM
Partner at a consultancy with 10,001+ employees
Straightforward installation, good support, and suitable for large pipelines
My past experience with the Nuix eDiscovery platform showed it was clunky when reviewing individual files and viewing folder structures. I wondered why we had to process in Nuix eDiscovery and then transfer to another review platform, this was a waste of time. I wish Nuix eDiscovery would have a comprehensive review platform in-house. I heard they have improved in this area, but our firm hasn't invested in it. Integrating the processing and review would make for a fantastic solution.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The initial setup was relatively straightforward."
"kCura Relativity is easy to use, and it is reliable."
"The ease of navigation from dock to dock, and that kind of usability, is quite helpful."
"It is easy for a beginner to learn to use Relativity."
"The solution has great searching capabilities, and it's very reliable."
"The most valuable feature from my perspective are the Kepler; it's a component that is more technical and directly related to the development companies that will be using it, allowing you to create custom APIs and gather most of the information that is not available in the standard API that they offer."
"There are a lot of ways to QC your work and save your searches, and we had really good case support from the Relativity team."
"Caplets are a very good technical feature."
"In my industry, it is important to use this solution because it can handle a large pipeline."
 

Cons

"They require more built-in support for some third-party applications."
"The price per user could be improved. We'd like for it to be more affordable."
"I think there is a lot of room for improvement because we have encountered a lot of bugs especially on the development side."
"What I dislike about Relativity is that we have to go through the host in order to do productions and loads. It is not a do-it-yourself tool."
"You are charged per user. It can get pretty expensive if you have a lot of users in your organization."
"I think RelativityOne, because it is so powerful, can be very difficult to use and there's a lot that can go wrong if you don't know how to use it."
"There are a lot of bugs on the development side."
"I haven't seen anything on AI merging with Relativity."
"My past experience with the Nuix eDiscovery platform showed it was clunky when reviewing individual files and viewing folder structures. I wondered why we had to process in Nuix eDiscovery and then transfer to another review platform, this was a waste of time. I wish Nuix eDiscovery would have a comprehensive review platform in-house. I heard they have improved in this area, but our firm hasn't invested in it. Integrating the processing and review would make for a fantastic solution."
 

Pricing and Cost Advice

"The pricing is extremely complicated."
"It's worth the money."
"They are maintaining the per gigabyte pricing, and it's based on tiers of how much data you host with them."
"Users are typically charged a fee per user account and a separate fee based on the amount of data processed and hosted."
"The price of Nuix eDiscovery is reasonable."
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Legal Firm
13%
Financial Services Firm
10%
Construction Company
10%
Legal Firm
16%
Outsourcing Company
9%
Comms Service Provider
9%
Government
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business1
Midsize Enterprise4
Large Enterprise2
No data available
 

Also Known As

Relativity
No data available
 

Overview

 

Sample Customers

Webb & Tyler
CYFOR
Find out what your peers are saying about Microsoft, Commvault, Google and others in eDiscovery. Updated: August 2026.
908,745 professionals have used our research since 2012.