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Legal · head to head

Didomi vs Rocket Matter

Didomi logo

Didomi

Legal

Google-certified and IAB TCF consent management across web, mobile and connected TV

From
On request
Rated
-
Full reviewWebsite
Rocket Matter logo

Rocket Matter

Legal

Legal practice management with billing and time tracking, tiered from matter basics to full legal accounting

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Didomi pricing is based on monthly unique visitors and is not published, so a large publisher cannot estimate cost before entering a sales process, and traffic spikes translate directly into billing surprises.; Rocket Matter trust accounting compliance is only included on the most expensive Elite tier, so firms with a regulatory requirement for it face a higher effective floor price than the entry-level plan suggests.
  • They diverge on capability: Didomi covers Google CMP certification, Rocket Matter covers Matter management.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Didomi and Rocket Matter actually diverge.

Attributes where Didomi and Rocket Matter differ
AttributeDidomiRocket Matter
Pricing modelquotePer user per month
PlatformsWeb, iOS, Android, Connected TV, APIWeb, iOS, Android

Identical on both: starting price (On request), 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 Didomi

  • Google CMP certification
  • IAB TCF support
  • Connected TV and OTT
  • Mobile SDKs
  • Consent proof storage
  • Preference centre
  • Consent analytics
  • Global privacy regimes

Only in Rocket Matter

  • Matter management
  • Time tracking and billing
  • Trust accounting
  • Document management
  • Matter budgeting
  • Reporting

What people use each for

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

Didomi

  • A European publisher whose Google Ad Manager revenue is withheld without a Google-certified CMP integrated with Consent Modenot Rocket Matter
  • A broadcaster collecting consent on connected TV apps, where certified CMP options are very limitednot Rocket Matter
  • A multinational advertiser needing one consent signal honoured consistently across web, iOS and Android propertiesnot Rocket Matter
  • A group that must produce consent evidence to a data protection authority following a complaintnot Rocket Matter

Rocket Matter

  • A solo practitioner wanting matter tracking and billing in one system without separate accounting softwarenot Didomi
  • A small firm that needs kanban-style visibility into where each matter standsnot Didomi
  • A mid-sized firm that has outgrown Essentials and needs split billing across multiple timekeepers on a matternot Didomi
  • A firm required to demonstrate trust accounting compliance that specifically needs the top Elite tiernot Didomi

Where each one falls short

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

Didomi

  • Pricing is based on monthly unique visitors and is not published, so a large publisher cannot estimate cost before entering a sales process, and traffic spikes translate directly into billing surprises.
  • Consent banners depress measurable traffic by design, and Didomi cannot prevent that, so publishers moving from a non-compliant banner should expect an immediate drop in tracked users and attributable conversions.
  • Certification is a moving target: Google and IAB update requirements periodically and each version change forces integration work on your side, not only on the vendor's.
  • Connected TV consent collection depends on the app platform and remote control interface, and implementations are considerably more involved than a web banner, often requiring per-platform development.
  • The wider privacy suite beyond consent is thinner than dedicated privacy platforms, so an organisation needing data subject rights automation and data mapping usually buys a second vendor anyway.

Rocket Matter

  • Trust accounting compliance is only included on the most expensive Elite tier, so firms with a regulatory requirement for it face a higher effective floor price than the entry-level plan suggests.
  • It is not built for large enterprise legal departments, so firms above a certain size outgrow it and move to platforms such as Clio or Aderant.
  • The tier structure gates common workflow features like kanban boards and templates behind Pro and above, so the cheapest tier is functionally limited.
  • Its name is easily confused with the Matter smart-home connectivity protocol, an entirely unrelated technology, which can cause mismatched search results.
  • Per-user monthly pricing across four tiers means a growing firm needs to actively reassess its plan as headcount and accounting needs change, rather than a single plan scaling automatically.

Pricing, plan by plan

Didomi

On request
  • Didomi CMP$undefined/year
    • Google-certified CMP for web, mobile and CTV
    • IAB TCF registered
    • Consent proof storage and analytics

Rocket Matter

On request
  • Essentials$49/month
    • Matter management
    • Billing and timekeeping
    • No trust accounting
  • Pro$79/month
    • Matter templates
    • Kanban board matter management
  • Premier$99/month
    • Advanced billing permissions
    • Split billing and fee allocation
  • Elite$129/month
    • Matter budgets
    • Full legal accounting and trust accounting compliance

Which should you pick?

Choose Didomi if

  • You need google cmp certification.
  • You work on Web, iOS, Android, Connected TV, API.
  • You also want iab tcf support.
Didomi review

Choose Rocket Matter if

  • You need matter management.
  • You work on Web, iOS, Android.
  • You also want time tracking and billing.
Rocket Matter review

Questions people ask

Is Didomi or Rocket Matter better?
Neither clearly leads. Didomi starts at On request and Rocket Matter at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Didomi or Rocket Matter?
Didomi starts at On request and Rocket Matter at On request.
Does Didomi or Rocket Matter run on more platforms?
Didomi runs on Web, iOS, Android, Connected TV, API. Rocket Matter runs on Web, iOS, Android.
What is Didomi best used for?
Didomi is most often used for a european publisher whose google ad manager revenue is withheld without a google-certified cmp integrated with consent mode, a broadcaster collecting consent on connected tv apps, where certified cmp options are very limited, a multinational advertiser needing one consent signal honoured consistently across web, ios and android properties, a group that must produce consent evidence to a data protection authority following a complaint. Of those, a european publisher whose google ad manager revenue is withheld without a google-certified cmp integrated with consent mode and a broadcaster collecting consent on connected tv apps, where certified cmp options are very limited are not what Rocket Matter is typically brought in for.
What can Didomi do that Rocket Matter cannot?
Didomi covers Google CMP certification, IAB TCF support, Connected TV and OTT, Mobile SDKs. Rocket Matter covers Matter management, Time tracking and billing, Trust accounting, Document management.

Answered from the vendors’ own pages

Didomi: Is Didomi Google-certified?

Yes, for web, mobile and connected TV, and the certification has been renewed across multiple years.

Rocket Matter: Does Rocket Matter include trust accounting?

Only on the Elite tier; the Essentials, Pro and Premier tiers do not include full trust accounting compliance.

Didomi: Does it support IAB TCF?

Yes, it is a registered TCF CMP, currently supporting version 2.2 and later revisions.

Rocket Matter: Is Rocket Matter the same as the Matter smart-home standard?

No, that is an unrelated connectivity protocol for smart-home devices; Rocket Matter is legal practice management software.

Didomi: What does it cost?

Not published. Pricing is based on monthly unique visitors and quoted.

Rocket Matter: What size firm is Rocket Matter built for?

Solo practitioners through mid-sized firms; larger firms typically need a more enterprise-oriented platform.

Didomi: Where is consent data stored?

Didomi is a French company and offers European storage, which matters for procurement teams weighing supervisory jurisdiction.

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