Which is better, Onna or Exterro?

Exterro edges out Onna based on user ratings across 99 reviews. That said, the best pick depends on your workflow — Onna may be a stronger fit for specific team sizes or use cases. Review the full comparison to decide.

What are the main differences between Onna and Exterro?

Key differences between Onna and Exterro include free trial availability (Onna offers one, Exterro does not). Use the Spotsaas comparison table to evaluate each dimension before deciding.

Do both Onna and Exterro offer a Free trial?

Onna offers Free Trial, but Exterro does not.

Who are the typical users of Onna?

Onna is designed for Large Enterprises, Medium Business, Small Business.

Who are the typical users of Exterro?

Exterro is designed for Large Enterprises, Medium Business, Small Business.

What is the starting price of Onna and Exterro?

Pricing details for both Onna and Exterro are unavailable.

What are the best alternatives to Onna?

Some top alternatives to Onna include Logikcull, Relativity, CasePoint, Cavo eD, Catalyst Insight.

What are the best alternatives to Exterro?

Some top alternatives to Exterro include AdaptiveGRC, LexComply, Logikcull, Relativity, Reprise.

Onna vs Exterro Comparison

Last updated: May 21, 2026

Onna

4.0(1 reviews)

Starting at Contact for pricing

Free Trial
Large Enterprises
Medium Business

Onna's powerful eDiscovery software makes it easy to sort and pinpoint relevant information from large data sets. The platform is used by law firms, corporations, government agencies, and educational institutions to mana…

View Pricing Read Reviews

Exterro

4.3(99 reviews)

Starting at Contact for pricing

Large Enterprises
Medium Business

Exterro's eDiscovery Assistant is a highly intuitive and feature-rich enterprise-class eDiscovery software specifically designed to support a wide range of users while minimizing IT involvement. It helps legal department…

View Pricing Read Reviews

Exterro leads on user satisfaction with a 4.3-star rating across 99 reviews.

SpotSaaS Analysis

OnnaExterro

The core difference between Onna and Exterro lies in Onna's focus on advanced data integration and analysis, while Exterro emphasizes customizable eDiscovery workflows and legal hold processes. Onna is ideal for medium to large legal teams seeking comprehensive data management, whereas Exterro is best suited for larger enterprises that prioritize tailored workflows and strong vendor support.

- Best for legal teams needing advanced eDiscovery - Strong data integration from diverse sources - Ideal for medium to large businesses - Advanced search capabilities - In-depth data analysis features - Comprehensive data management solutions

- Best for enterprise legal teams - Customizable eDiscovery workflows - Strong legal hold processes - Employee change monitoring features - Emphasizes vendor collaboration - Responsive customer support

Onna vs Exterro — at a glance

Feature	Onna	Exterro
Rating	4.0 / 5	4.3 / 5
Reviews	1	99
Starting price	Contact for pricing	Contact for pricing
Free trial	Yes	No
Free version	No	No
Best for	Large Enterprises, Medium Business, Small Business	Large Enterprises, Medium Business, Small Business
Category	eDiscovery Software	eDiscovery Software
Platforms	SaaS/Web/Cloud, Installed - Windows, Installed - Mac	SaaS/Web/Cloud, Installed - Windows, Installed - Mac
API	Available	—
Support modes	Business Hours, Online	24/7 (Live rep), Business Hours
Certifications	SOC 2, HIPAA, GDPR, ISO 27001	SOC 2, HIPAA, GDPR, ISO 27001
Data residency	US	US

Key differences between Onna and Exterro

Free trial: Onna offers a free trial; Exterro does not.
User satisfaction: Exterro scores higher with a 4.3-star average.
Deployment: Onna supports SaaS/Web/Cloud, Installed - Windows, Installed - Mac; Exterro supports SaaS/Web/Cloud, Installed - Windows, Installed - Mac.

Onna vs Exterro — find the better fit before you commit.

Which tool fits your team best

Which is actually cheaper for your team size

Where each product wins, per real buyers

Most eDiscovery Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.

Biggest differences

Features

Pricing

Buying details

Security

Buyer feedback

Integrations

Product tour

Other options

	Onna (17) Talk to an expert Talk to an expert	Exterro (87) Talk to an expert Talk to an expert

Biggest differences

Affiliate Disclosure

Start here before you go deeper into features.

Onna

Best for legal teams needing advanced eDiscovery with strong data integration.

Choose if

You require comprehensive data integration from multiple diverse sources.
Your team needs advanced search and in-depth data analysis capabilities.
Data security and regulatory compliance are top priorities for your organization.

Consider alternatives if

Your team lacks dedicated support to onboard and manage complex features.
You need extensive third-party app integrations beyond Onna’s limited marketplace.

Exterro

Best for enterprise legal teams needing powerful, customizable eDiscovery workflows.

Choose if

You require comprehensive legal hold processes including employee change monitoring.
Your team values strong vendor collaboration and responsive customer support.
You need an intuitive, web-based interface with flexible, configurable workflows.

Consider alternatives if

You are a small business with minimal legal hold needs.
You need extensive out-of-the-box integrations with systems like Outlook.

Onna: Best for legal teams needing advanced eDiscovery with strong data integration. Exterro: Best for enterprise legal teams needing powerful, customizable eDiscovery workflows.

Description	Onna's powerful eDiscovery software makes it easy to sort and pinpoint relevant information from large data sets. The platform is used by law firms, corporations, government agencies, and ... Read More about Onna	Exterro's eDiscovery Assistant is a highly intuitive and feature-rich enterprise-class eDiscovery software specifically designed to support a wide range of users while minimizing IT ... Read More about Exterro
Free Trial Availability	Free Trial available	No free trial
Spotsaas Score What's this? ↗	8.3/10	9.6/10
User Ratings Based on verified Spotsaas reviews	4 (1)	4.3 (99)
Best Company Size	Medium BusinessLarge Enterprises	51-500 employees500+ employees
	Get pricing help	Get pricing help

Software Demo

Demo		Exterro has not given any software demo yet If you're the owner of this profile, add your demo.Contact us

Need a second opinion?

Get shortlist help from a software advisor

Share your priorities, budget, and team needs, and we’ll help you narrow the options and understand the tradeoffs before you talk to vendors.

How do Onna and Exterro Compare on Features?

Total Features	7 Features	9 Features
Unique Features	No unique features	No unique features
	Get Quote	Get Quote

Compare Onna and Exterro on pricing

Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.

Pricing Option
Pricing Plans	Not Available	Not Available
	View detailed pricing	View detailed pricing

Other Details

Organization Types supported	Small Business Freelancers Medium Business Large Enterprises	Small Business Freelancers Medium Business Large Enterprises
Platforms Supported	Mobile - iOS Browser Based (Cloud) Mobile - Android Installed - Mac Installed - Windows	Mobile - iOS Browser Based (Cloud) Mobile - Android Installed - Mac Installed - Windows
Modes of support	24/7 (Live rep) Business Hours Online	24/7 (Live rep) Business Hours Online
API Support	Available	Not Available
	Get help choosing	Get help choosing

Security & Compliance

Certifications, data handling, and security controls for IT and compliance evaluators.

SOC 2	✓ Yes	✓ Yes
HIPAA	✓ Yes	✓ Yes
GDPR	✓ Yes	✓ Yes
ISO 27001	✓ Yes	✓ Yes
Single Sign-On (SSO)	✓ Yes	✓ Yes
Multi-Factor Auth (MFA)	✓ Yes	✓ Yes
Data Encryption	✓ Yes	✓ Yes
Audit Logs	✓ Yes	✓ Yes
Data Residency	🇺🇸 US	🇺🇸 US

Onna User Reviews & Rating Comparison

User Ratings	4 (based on 1 reviews)	4.3 (based on 99 reviews)
Rating Distribution	7 9 1 0 0	61 22 4 0 0
Spotsaas Editor’s POV generated by AI	Buyer sentiment Users generally appreciate Onna's powerful data integration and search capabilities, though some find the feature set complex and the marketplace limited. What buyers like Ease of use Advanced search functionality Data security and compliance Common complaints Complexity for new users Limited app marketplace	Buyer sentiment Users generally praise Exterro for its powerful legal hold capabilities, excellent customer support, and intuitive UI, though some find the complexity and integration limitations challenging. What buyers like Ease of use Customer support Legal hold process efficiency Common complaints Complexity of features Limited system integrations
Pros and Cons	Comprehensive data integration across multiple sources Advanced search and in-depth data analysis capabilities Strong focus on data security and regulatory compliance Complexity of features can overwhelm new users without support Limited marketplace for additional apps and connectors	Streamlines and speeds up legal hold processes Excellent customer support and partnership Intuitive and easy-to-use web user interface Complex features and customizations can be overwhelming without support Limited integration with some systems such as Outlook
Positive Reviews	No reviews available for the product	No reviews available for the product
	Read reviews	Read reviews

Media and Screenshots

Screenshots	7 Screenshots	6 Screenshots
Videos	3 Videos	No videos available.

Top Alternatives to Onna and Exterro in 2026

Alternatives	Logikcull 4.8 Relativity 4.5 CasePoint 5	AdaptiveGRC 5 LexComply Logikcull 4.8

Frequently asked questions

Which is better, Onna or Exterro?: Exterro edges out the other on user ratings (4.3 vs 4.0). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
Do Onna and Exterro offer a free trial?: Onna offers a free trial. Exterro does not.
What is the starting price of Onna vs Exterro?: Onna starts at Contact for pricing. Exterro starts at Contact for pricing.
What are the top alternatives to Onna?: Top alternatives to Onna include Logikcull, Relativity, CasePoint, Cavo eD, Catalyst Insight.
What are the top alternatives to Exterro?: Top alternatives to Exterro include AdaptiveGRC, LexComply, Logikcull, Relativity, Reprise.

Onna vs Exterro Comparison

Onna

Exterro

Onna vs Exterro — at a glance

Key differences between Onna and Exterro

Onna vs Exterro — find the better fit before you commit.

Onna

Exterro

Biggest differences

Description

Free Trial Availability

Spotsaas Score

User Ratings

Best Company Size

Software Demo

Demo

Get shortlist help from a software advisor

How do Onna and Exterro Compare on Features?

Compare Onna and Exterro on pricing

Other Details

Organization Types supported

Platforms Supported

Modes of support

API Support

Security & Compliance

Onna User Reviews & Rating Comparison

Media and Screenshots

Screenshots

Videos

Top Alternatives to Onna and Exterro in 2026

Related Blogs and Articles for Ediscovery Software

Frequently asked questions