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Didomi vs TrustArc

Didomi logo

Didomi

Legal

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

From
On request
Rated
-
Full reviewWebsite
TrustArc logo

TrustArc

Cybersecurity

Privacy management platform with regulatory research and the TRUSTe certification programme

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.; TrustArc the software layer is generally shallower than OneTrust, particularly automated data discovery across large heterogeneous estates, so organisations with sprawling infrastructure often still need a separate discovery tool.
  • They diverge on capability: Didomi covers Google CMP certification, TrustArc covers Nymity Research.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Didomi and TrustArc actually diverge.

Attributes where Didomi and TrustArc differ
AttributeDidomiTrustArc
PlatformsWeb, iOS, Android, Connected TV, APIWeb
CategoryLegalCybersecurity

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

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 TrustArc

  • Nymity Research
  • TRUSTe certification
  • Consent and preference management
  • Privacy assessments
  • Data inventory and mapping
  • Individual rights requests
  • Cookie consent manager
  • Privacy programme benchmarking

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 TrustArc
  • A broadcaster collecting consent on connected TV apps, where certified CMP options are very limitednot TrustArc
  • A multinational advertiser needing one consent signal honoured consistently across web, iOS and Android propertiesnot TrustArc
  • A group that must produce consent evidence to a data protection authority following a complaintnot TrustArc

TrustArc

  • A consumer brand that needs an independent privacy seal on its website because enterprise customers or app stores ask for third-party verificationnot Didomi
  • A multinational privacy team that needs a maintained answer to what a given jurisdiction requires without retaining outside counsel for every questionnot Didomi
  • An organisation running DPIAs at volume that wants templates tied to a maintained regulatory library rather than to a consultant word documentnot Didomi
  • A privacy programme being audited that needs documented maturity benchmarking against a recognised framework of programme activitiesnot 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.

TrustArc

  • The software layer is generally shallower than OneTrust, particularly automated data discovery across large heterogeneous estates, so organisations with sprawling infrastructure often still need a separate discovery tool.
  • The integration catalogue is smaller than the market leader, which means more of the data inventory is maintained by hand and drifts out of date between reviews.
  • Certification services are sold separately from the platform subscription, so the seal that is often the reason for choosing TrustArc is an extra line item and an extra annual renewal.
  • Reported contract values vary enormously by module mix and organisation size, and the absence of published pricing means smaller buyers have no anchor and routinely discover the entry price is higher than expected.
  • TrustArc stays inside privacy, so organisations that later want third-party risk, security compliance or ethics reporting on the same platform will be running a second vendor anyway.

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

TrustArc

On request
  • TrustArc Privacy Platform$undefined/year
    • Quoted by module, entity count and data volume
    • TRUSTe certification and assessment services priced separately from platform subscription
    • Nymity Research licensed as a separate module

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 TrustArc if

  • You need nymity research.
  • You also want truste certification.
TrustArc review

Questions people ask

Is Didomi or TrustArc better?
Neither clearly leads. Didomi starts at On request and TrustArc at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Didomi or TrustArc?
Didomi starts at On request and TrustArc at On request.
Does Didomi or TrustArc run on more platforms?
Didomi runs on Web, iOS, Android, Connected TV, API. TrustArc runs on Web.
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 TrustArc is typically brought in for.
What can Didomi do that TrustArc cannot?
Didomi covers Google CMP certification, IAB TCF support, Connected TV and OTT, Mobile SDKs. TrustArc covers Nymity Research, TRUSTe certification, Consent and preference management, Privacy assessments.

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.

TrustArc: What does TrustArc have that OneTrust does not?

Nymity Research, a maintained regulatory intelligence library acquired in 2019, and the TRUSTe third-party certification and seal programme.

Didomi: Does it support IAB TCF?

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

TrustArc: How much does TrustArc cost?

Not published. Reported enterprise agreements range widely depending on modules and organisation size, and certification services are quoted on top of the platform subscription.

Didomi: What does it cost?

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

TrustArc: Is TRUSTe the same company?

Yes. TrustArc is the renamed TRUSTe business and still operates the TRUSTe certification programme as a subsidiary.

Didomi: Where is consent data stored?

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

TrustArc: Does it handle cookie consent for Europe?

Yes, it includes a consent manager with scanning and banner delivery, though pure-play consent vendors are cheaper if that is all you need.

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