Is Didomi or OneTrust better?

Neither clearly leads. Didomi starts at On request and OneTrust at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Didomi or OneTrust?

Didomi starts at On request and OneTrust at On request.

Does Didomi or OneTrust run on more platforms?

Didomi runs on Web, iOS, Android, Connected TV, API. OneTrust runs on Web, API, Cloud.

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 OneTrust is typically brought in for.

What can Didomi do that OneTrust cannot?

Didomi covers Google CMP certification, IAB TCF support, Connected TV and OTT, Mobile SDKs.

Legal · head to head

Didomi vs OneTrust

Didomi

Legal

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

From: On request
Rated: -

Full review Website

OneTrust

Cybersecurity

Enterprise AI governance and data compliance platform.

From: On request
Rated: -

Full review Website

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.; OneTrust complex usage-based pricing model with multiple meters (admin users, inventory size, daily visitors, data subjects) making total cost unpredictable
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Didomi and OneTrust actually diverge.

Attributes where Didomi and OneTrust differ
Attribute	Didomi	OneTrust
Pricing model	quote	usage-based
Platforms	Web, iOS, Android, Connected TV, API	Web, API, Cloud
Category	Legal	Cybersecurity

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

Nothing recorded that Didomi does not also cover.

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

OneTrust

Fortune 500 enterprises managing multi-framework compliance (GDPR, SOC 2, EU AI Act, DORA, NIS2)not Didomi
Organisations implementing responsible AI governance and monitoring AI systemsnot Didomi
Companies with global data operations requiring consent and privacy automation at scalenot Didomi
Enterprises managing complex vendor ecosystems with third-party risk assessmentnot Didomi
Regulated industries (finance, healthcare, insurance) requiring continuous compliancenot 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.

OneTrust

Complex usage-based pricing model with multiple meters (admin users, inventory size, daily visitors, data subjects) making total cost unpredictable
No published pricing examples or per-unit costs; all pricing requires custom quotes
Each solution area uses different pricing metrics, requiring complex calculations for multi-solution purchases
Enterprise-only positioning (Fortune 500 focus) suggests premium pricing, discouraging mid-market or startup adoption
Platform complexity and multiple solution areas may result in significant implementation and ongoing costs not disclosed upfront

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

OneTrust

On request

AI Governance$undefined/variable
- Pricing by admin users and AI inventory size
- AI compliance lifecycle management
- Control enforcement and monitoring
Consent & Preferences$undefined/variable
- CMP Base: priced by average daily visitors
- CMP Suite: expanded privacy experiences
- Universal Consent: metered by data subject profiles
Privacy Automation$undefined/variable
- Priced by users and privacy asset inventory
- Internal operations automation
- Data subject request handling
Tech Risk & Compliance$undefined/variable
- Governance and risk management across 50+ standards
- Priced by admin users and asset inventory

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 OneTrust if

You work on Web, API, Cloud.

OneTrust review

Questions people ask

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

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.

OneTrust: How many case studies does OneTrust have?

OneTrust showcases 74+ customer case studies across multiple industries and regions, with examples from banking, insurance, hospitality and technology.

Source

Didomi: Does it support IAB TCF?

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

OneTrust: What compliance standards does OneTrust support?

OneTrust covers tech risk and compliance across 50+ standards including GDPR, SOC 2, EU AI Act, DORA and NIS2.

Source

Didomi: What does it cost?

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

OneTrust: Does OneTrust automate data detection?

Yes. OneTrust automatically detects and classifies sensitive data across 200+ connectors, identifying where data lives and what regulatory requirements apply.

Source

Didomi: Where is consent data stored?

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

Didomi vs OneTrust

Didomi

OneTrust

The short version

Where they differ

What each one covers

Only in Didomi

Only in OneTrust

What people use each for

Didomi

OneTrust

Where each one falls short

Didomi

OneTrust

Pricing, plan by plan

Didomi

OneTrust

Which should you pick?

Choose Didomi if

Choose OneTrust if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Didomi

More on OneTrust

Keep looking

Other head to heads