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Head-to-head · eDiscovery Software

CloudNine vs Rational Review

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score CloudNine #7 in eDiscovery Software 8.8/10 Pricing on request · 30-day trial Free trial✓ 0 of 4 features Visit CloudNine
Rational Review #8 in eDiscovery Software 8.7/10 Pricing on request ✓ 4 of 4 features Visit Rational

CloudNine leads on 0 checks, Rational Review on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCloudNine · 8.8/10
  • Free trialonly CloudNine
  • Most featuresRational Review · 4 of 4

CloudNine scores higher on our rubric for ediscovery software: 8.8 against 8.7 out of 10; our editors rank them #7 and #8.

CloudNine is the better fit for broad modern-data investigations. Rational Review is the better fit for integrated legal hold and review workflows.

  • CloudNine fits best

    Broad modern-data investigations

  • Rational Review fits best

    Integrated legal hold and review workflows

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature CloudNine 8.8/10 Visit ↗ Rational Review 8.7/10 Visit ↗
At a glance
Editor score 8.8 8.7
Ranking #7 in eDiscovery Software #8 in eDiscovery Software
Best for Broad modern-data investigations Integrated legal hold and review workflows
Pricing model Paid Paid
Starting price Pricing on request · 30-day trial Pricing on request
Free plan — Not checked yet
Free trial 30 days —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web, Windows Web
Support Email, Phone, Tickets, Docs Phone
Compliance ISO 27001 SOC 2, ISO 27001, HIPAA, 2FA, SSO/SAML
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features CloudNine 0/4 · Rational Review 4/4
Legal hold Not checked yet ✓ (best)
Redaction tools Not checked yet ✓ (best)
Predictive coding Not checked yet ✓ (best)
Audit log Not checked yet ✓ (best)
Specs
Processing limit Not checked yet Not checked yet
Production formats Not checked yet Not checked yet
Our review
Pros
  • Handles email, chats, texts, social media, and device artifacts
  • Advanced search, OCR, deduplication, threading, and redaction
  • Supports cloud and on-premises deployment with broad production formats
  • Covers legal hold, collection, review, redaction, and production
  • Includes predictive coding, clustering, and communication analysis
  • Supports native, PDF, TIFF, JPEG, and load-file production
Cons
  • Pricing requires contacting CloudNine for a quote
  • The breadth may exceed the needs of narrow-scope matters
  • Teams needing documented integrations should compare platform fit
  • Pricing is handled through sales inquiries
  • Integration fit centers on three named platforms
  • Its broad feature set may exceed narrow review needs
Our verdict

CloudNine provides eDiscovery software for law firms, corporations, government agencies, and legal service providers. Its portfolio includes CloudNine Review for ingesting, searching, reviewing, redacting, and producing legal data, along…

Read the review →

Rational Review is a cloud-optimized eDiscovery platform for law firms, corporate legal departments, government agencies, and regulated organizations. It brings legal hold issuance, custodian tracking, preservation, collection, processing,…

Read the review →
  1. CloudNineeDiscovery Software 8.8Pricing on request · 30-day trial
  2. Rational RevieweDiscovery Software 8.7Pricing on request

Strengths and trade-offs

  • CloudNine — where it wins

    • Handles email, chats, texts, social media, and device artifacts
    • Advanced search, OCR, deduplication, threading, and redaction
    • Supports cloud and on-premises deployment with broad production formats

    Where it doesn't

    • Pricing requires contacting CloudNine for a quote
    • The breadth may exceed the needs of narrow-scope matters
    • Teams needing documented integrations should compare platform fit

  • Rational Review — where it wins

    • Covers legal hold, collection, review, redaction, and production
    • Includes predictive coding, clustering, and communication analysis
    • Supports native, PDF, TIFF, JPEG, and load-file production

    Where it doesn't

    • Pricing is handled through sales inquiries
    • Integration fit centers on three named platforms
    • Its broad feature set may exceed narrow review needs
  • CloudNine8.8/10 · Pricing on request · 30-day trial

    A broad eDiscovery suite for investigations spanning traditional and modern data.

    Visit CloudNineFull verdict →
  • Rational Review8.7/10 · Pricing on request

    A broad eDiscovery workflow covering legal hold through production.

    Visit RationalFull verdict →

More comparisons

All ediscovery software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update