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Legal · head to head

Aderant vs DISCO

Aderant logo

Aderant

Legal

Practice and financial management for large law firms

From
On request
Rated
-
Full reviewWebsite
DISCO logo

DISCO

Legal

Cloud e-discovery priced by data volume, with review, legal hold and case preparation in one platform

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Aderant implementation is a programme of work with consultants and data migration, so the licence fee is a minority of the real first year cost.; DISCO per-gigabyte pricing that is attractive on a 200 gigabyte matter becomes the dominant line item on multi-terabyte collections, and the only cost lever left is aggressive culling before upload.
  • They diverge on capability: Aderant covers Aderant Expert, DISCO covers All-in per-gigabyte pricing.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Aderant and DISCO actually diverge.

Attributes where Aderant and DISCO differ
AttributeAderantDISCO
PlatformsWindows, Web, iOS, AndroidWeb

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Legal).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Aderant

  • Aderant Expert
  • Conflicts and new business intake
  • Docketing and calendaring
  • Multi-currency and multi-entity billing
  • Business intelligence

Only in DISCO

  • All-in per-gigabyte pricing
  • Cecilia AI
  • Technology assisted review
  • Legal hold
  • Case Builder
  • Self-service ingestion

What people use each for

The jobs each tool is most often brought in to do.

Aderant

  • Firms of a hundred or more fee earners needing matter financials across multiple offices and currenciesnot DISCO
  • Practices replacing an ageing time and billing system without leaving the large firm segmentnot DISCO
  • Firms needing conflicts checking and new business intake governed by an approval workflownot DISCO
  • Partnerships reporting profitability by practice group and requiring realisation analysisnot DISCO

DISCO

  • A litigation team that needs a matter budget approved before the volume of collected data is fully knownnot Aderant
  • A firm that wants unlimited reviewer accounts without paying per seat during a document review surgenot Aderant
  • An in-house legal department consolidating legal hold and review with one vendor instead of twonot Aderant
  • A case where speed of ingestion matters more than the analytics depth of an enterprise review platformnot Aderant

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Aderant

  • Implementation is a programme of work with consultants and data migration, so the licence fee is a minority of the real first year cost.
  • It is designed for large firms, so a practice below roughly fifty fee earners pays for governance and reporting depth it will never use.
  • Ownership by an acquisitive holding company tends to mean predictable maintenance uplifts at renewal rather than competitive discounting.
  • The credible alternative set is effectively one other product, which weakens a firm's negotiating position because switching is genuinely expensive.
  • Nothing about pricing is published, so budgeting requires a sales engagement and useful comparisons come only from peer firms.

DISCO

  • Per-gigabyte pricing that is attractive on a 200 gigabyte matter becomes the dominant line item on multi-terabyte collections, and the only cost lever left is aggressive culling before upload.
  • Hosting is cloud only in United States regions, so matters with European, United Kingdom or Australian data residency requirements are excluded outright.
  • Review analytics, scripting and the third-party application ecosystem remain deeper on Relativity, which matters for firms with established review workflows.
  • As a listed company reporting losses, it has been through leadership change including the founder departure in 2023, so multi-year roadmap commitments carry more risk than with a private vendor.
  • Complex productions and unusual data types still require professional services, so the promise of self-service holds mainly for mainstream email and document collections.

Pricing, plan by plan

Aderant

On request
  • Aderant Expert$undefined/year
    • Enterprise licensing quoted per firm
    • Implementation, migration and consultancy quoted separately
    • Annual maintenance and support

DISCO

On request
  • DISCO Ediscovery$undefined/year
    • Quoted per gigabyte of hosted data per month with unlimited users
    • Annual commitments and volume tiers negotiated for firms with steady caseloads
    • Legal hold, Case Builder and AI features priced as separate modules

Which should you pick?

Choose Aderant if

  • You need aderant expert.
  • You work on Windows, Web, iOS, Android.
  • You also want conflicts and new business intake.
Aderant review

Choose DISCO if

  • You need all-in per-gigabyte pricing.
  • You also want cecilia ai.
DISCO review

Questions people ask

Is Aderant or DISCO better?
Neither clearly leads. Aderant starts at On request and DISCO at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Aderant or DISCO?
Aderant starts at On request and DISCO at On request.
Does Aderant or DISCO run on more platforms?
Aderant runs on Windows, Web, iOS, Android. DISCO runs on Web.
What is Aderant best used for?
Aderant is most often used for firms of a hundred or more fee earners needing matter financials across multiple offices and currencies, practices replacing an ageing time and billing system without leaving the large firm segment, firms needing conflicts checking and new business intake governed by an approval workflow, partnerships reporting profitability by practice group and requiring realisation analysis. Of those, firms of a hundred or more fee earners needing matter financials across multiple offices and currencies and practices replacing an ageing time and billing system without leaving the large firm segment are not what DISCO is typically brought in for.
What can Aderant do that DISCO cannot?
Aderant covers Aderant Expert, Conflicts and new business intake, Docketing and calendaring, Multi-currency and multi-entity billing. DISCO covers All-in per-gigabyte pricing, Cecilia AI, Technology assisted review, Legal hold.

Answered from the vendors’ own pages

Aderant: Who owns Aderant?

Roper Technologies acquired Aderant in 2015. Roper buys and holds vertical market software businesses, which in practice means long product support and steady renewal pricing rather than rapid change.

DISCO: How is DISCO priced?

Per gigabyte of hosted data per month, all-in, with unlimited users. There is no published rate card, so it is quoted.

Aderant: What size of firm is Aderant for?

Large firms, broadly a hundred fee earners and above. Smaller practices are better served by Clio, Tabs3 or Smokeball.

DISCO: Can data be hosted outside the United States?

Coverage is centred on United States cloud regions, so confirm residency before shortlisting for European or Australian matters.

Aderant: What does it compete with?

Thomson Reuters Elite 3E is the main alternative at this size, and most large firm selections come down to those two.

DISCO: Is it cheaper than Relativity?

On small and mid-sized matters usually yes, because seats and analytics are included. On very large collections the volume charge often overtakes a negotiated Relativity arrangement.

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