OneTrust vs FlowConsent: which CMP to choose in 2026?

Our verdict: OneTrust and FlowConsent do not play in the same league. OneTrust is a governance suite for large organizations, sold on quote, with IAB TCF certification, 250+ languages and modules that go far beyond the cookie banner. FlowConsent is a simple CMP with public pricing, free up to 25,000 sessions per month. For an SME website, an agency or an online store, FlowConsent is enough and costs a fraction of the price. For an international group running a full compliance program, OneTrust remains the benchmark.

What is a CMP and why do you need one?

A Consent Management Platform (CMP) is the tool that lets a website comply with the GDPR and the ePrivacy Directive for cookies and trackers. In practice, it is used to:

• Display a consent banner that meets legal requirements
• Collect and record visitor choices
• Block non-essential cookies until consent is given
• Keep proof of consent (consent log)
• Pass consent signals to advertising and analytics tools, in particular through Google Consent Mode v2

Without a CMP, a website is exposed to fines from European data protection authorities of up to €20 million or 4% of global turnover. A well-configured CMP also protects your analytics and campaigns, since Google requires consent signals for some advertising features in Europe.

Not every CMP serves the same need, though. OneTrust and FlowConsent sit at the two ends of the market.

FlowConsent overview

What is FlowConsent?

FlowConsent is a French consent management solution launched in 2024. It focuses on one job: the cookie banner and consent on websites. Its goal is to make GDPR compliance accessible to everyone, with a professional tool and publicly listed prices.

FlowConsent's philosophy

FlowConsent takes an "anti-premium" approach: deliver the essential compliance features without the complexity or the cost of enterprise platforms. No mandatory demo, no sales negotiation: you create an account, configure your banner and publish it. Billing is based on sessions, meaning visits, not page views.

FlowConsent's strengths

Public, predictable pricing

• Free plan up to 25,000 sessions per month
• Pro plan at €14.99/month excl. VAT up to 100,000 sessions
• 3 domains and subdomains included on the Pro plan
• Custom Enterprise plan for high volumes

Fast installation

• 10-minute setup, no Google Tag Manager needed
• Interface designed for non-technical users
• Lightweight script served over the Cloudflare network

Automated technical work

• Google Consent Mode v2 enabled in one click
• Microsoft UET Consent Mode included
• Automatic cookie scanning and classification
• Catalog of more than 7,000 known services
• Automatic cookie policy updates

Audit tools

• Free cookie and tracker scanner, results in 1 to 3 minutes
• Chrome extension for compliance audits
• Consent log with history

OneTrust overview

What is OneTrust?

OneTrust is an American company founded in 2016 in Atlanta. It has become one of the largest privacy software vendors in the world. Its cookie consent management is just one building block of a much broader platform covering data discovery, privacy operations, third-party and vendor risk, and AI governance.

OneTrust has also folded in CookiePro, its former offering for mid-sized websites: CookiePro is now presented as part of OneTrust.com, and new customers are directed to OneTrust's Consent & Preferences solution.

OneTrust's philosophy

OneTrust targets organizations that manage privacy as a company-wide program: several countries, several regulations, many websites and apps, and legal, security and marketing teams working together. The cookie banner fits into a consistent whole that includes data subject requests, records of processing and impact assessments.

OneTrust's strengths

Very broad functional coverage

• Detection of cookies, tags, pixels and trackers across a whole site
• A database of more than 45 million pre-categorized cookies, according to OneTrust
• Automatic cookie blocking before consent
• A/B testing to optimize opt-in rates
• Consent for web, mobile apps and connected TV (OTT/CTV)

Global reach

• Support for more than 250 languages
• Geolocation rules: different banners and consent models by region, country or state
• Coverage of the major regulations (GDPR, US state laws, Brazil, Canada and many more)

The certifications ad tech expects

• Registered with the IAB TCF under CMP ID 28
• Listed among Google-certified CMPs for web, apps and connected TV
• Google Consent Mode v2 support

An integrated governance platform

• Data subject access and deletion requests (DSAR)
• Data mapping and discovery
• Third-party and vendor risk management
• AI governance

OneTrust's limitations

No public pricing

• Prices are not listed: you go through a demo and a quote
• According to data from the procurement platform Vendr (309 purchases), the median annual contract is around $12,000, with an observed range of $1,620 to $48,215 per year
• Budgeting is hard before the negotiation starts

Built for large accounts

• The functional depth comes with a longer learning curve
• A full configuration often requires a dedicated team or an implementation partner
• An SME will only use a small part of the platform

An enterprise buying cycle

• No self-service sign-up with listed prices to get started on your own
• Contracts are usually annual
• A longer gap between decision and go-live than with a self-service tool

Detailed pricing comparison

FlowConsent pricing

FlowConsent publishes its session-based pricing grid. See the pricing page for every detail.

Free plan (€0)

• Up to 25,000 sessions per month, deployed through your own Cloudflare account
• 1 domain included
• FlowConsent branding visible
• Google Consent Mode v2 and Microsoft UET Consent Mode
• 13-month consent log
• 1 cookie scan per week
• 7-day analytics

Pro plan (€14.99/month excl. VAT)

Everything in Free, plus:

• Up to 100,000 sessions per month
• 3 domains and subdomains
• 90-day consent analytics
• 1 cookie scan per day
• Up to 5 languages
• 3 banners and 10 users per workspace

Enterprise plan (custom quote)

• Sessions billed according to your traffic
• Domains on request
• Unlimited banners, scans and users
• Setup handled by our team
• Priority support with a dedicated CSM

OneTrust pricing (October 2026)

OneTrust publishes no prices for its consent solution. The product page leads to a demo request, and the amount depends on traffic, selected modules, number of sites and level of support.

For guidance only, data published by Vendr, which aggregates real software purchases, puts the median OneTrust annual contract at about $12,000, across 309 recorded purchases. These amounts cover all kinds of scopes, from a simple banner to multi-module rollouts: they are not a price list, and only a OneTrust quote is binding.

What this means in practice

An exact comparison is impossible since OneTrust does not publish prices. What is known can still be compared:

Small site (10,000 sessions per month)

• FlowConsent: free
• OneTrust: on quote

Mid-sized site (50,000 sessions per month)

• FlowConsent: €14.99/month excl. VAT, or €179.88 per year
• OneTrust: on quote

Large site (100,000 sessions per month)

• FlowConsent: €14.99/month, or €179.88 per year
• OneTrust: on quote

Very large site (500,000 sessions per month)

• FlowConsent: Enterprise plan on quote
• OneTrust: on quote

Using the Vendr median as a reference point, the gap for a site under 100,000 monthly sessions is measured in orders of magnitude: €179.88 per year on one side, a five-figure annual budget on the other. For a group that also buys DSAR management, data mapping or AI governance, the comparison makes no sense: FlowConsent does not offer those modules.

Installation and setup

Installing FlowConsent

Step 1: create your account (2 minutes)

• Sign up on flowconsent.com, no credit card required
• Confirm your email address
• Create your first project

Step 2: configure the banner (5 minutes)

• Run a scan of your site to detect the services in use
• Pick a banner template, your colors and your copy
• Review the cookie categories
• Turn on Google Consent Mode v2 in one click

Step 3: install the script (3 minutes)

• Copy the generated script
• Paste it into the <head> tag of your site
• Publish and test

Total: about 10 minutes. No Google Tag Manager and no advanced technical skills required. The step-by-step guide is in the installation documentation.

Installing OneTrust

The OneTrust journey starts before any code is written:

Step 1: demo and quote

• Contact with the sales team
• Scoping (sites, apps, regions, modules)
• Contract signature

Step 2: platform configuration

• Add domains and run scans
• Review cookie categorization
• Build banner templates and geolocation rules
• Configure auto-blocking and Google Consent Mode v2
• Set up the IAB TCF if you need it

Step 3: integration and testing

• Add the script to your sites, directly or through a tag manager
• Test by region and by consent scenario
• Train the teams who will run the tool

Timing depends on scope. For a single site, a few days can be enough once the contract is signed; for a multi-country group, the project is planned in weeks. That is not a flaw: it is the price of functional depth.

Using OneTrust? Check what really runs on your website. FlowConsent scans your website to detect all active third-party services and turns the result into a compliant cookie banner in one click. Scan my website for free: no installation, no commitment, results in 1 to 3 minutes.

Feature comparison

Compliance and certifications

Cookie management

Customization and languages

FlowConsent

• Customizable colors, fonts, copy and labels
• Several banner formats and positions
• Real-time preview
• Up to 5 languages on Pro, custom multilingual setup on Enterprise

OneTrust

• Highly configurable banner and preference center templates
• 250+ languages
• Different banners by geography
• Banner A/B testing

Verdict: OneTrust is much richer, especially for international websites.

Analytics and reporting

FlowConsent

• Consent rate dashboard
• Acceptance rate by category
• CSV export
• 7-day (Free) or 90-day (Pro) history

OneTrust

• Consent dashboards
• A/B testing to optimize opt-in rates
• Reporting integrated with the rest of the privacy platform

Verdict: OneTrust wins for optimization and group-wide reporting.

Beyond the banner

This is where the difference is sharpest. OneTrust offers modules for data subject requests, data mapping, vendor assessments and AI governance. FlowConsent offers none of these: it focuses on cookie consent on the web, and keeps it simple.

Use cases: who should choose what?

Choose FlowConsent if...

• You need a compliant banner, not a governance suite. FlowConsent covers the GDPR, Google Consent Mode v2 and the consent log.
• You want to know the price before signing. Free up to 25,000 sessions per month, €14.99/month up to 100,000 sessions.
• You want to go live today. Self-service sign-up and a 10-minute setup.
• You run a handful of sites. 3 domains are included on the Pro plan.
• You have no dedicated technical team. No Google Tag Manager required.

Typical profiles:

• SMEs and startups
• Web agencies managing several clients
• Small and mid-sized online stores
• Blogs, independent media and brochure sites
• Webflow, WordPress and no-code sites

Choose OneTrust if...

• You need the IAB TCF today. Programmatic advertising requires it, and FlowConsent does not offer it yet.
• You operate in many countries. 250+ languages and fine-grained geographic rules.
• You also manage mobile apps or connected TV. OneTrust covers those channels.
• You run a full privacy program. DSAR, data mapping, third-party risk and AI governance in one platform.
• Your purchasing goes through an enterprise process. Contracts, security reviews, dedicated support.

Typical profiles:

• Large international groups
• Regulated companies (banking, insurance, healthcare)
• Publishers and media that live on programmatic advertising
• Organizations with a DPO and a privacy team

Final verdict: our recommendation

For most websites: FlowConsent

• A price known upfront: free up to 25,000 sessions per month, then €14.99/month up to 100,000 sessions
• An immediate start: self-service sign-up, 10-minute setup
• The compliance essentials: GDPR, consent log, scanning, blocking, Google Consent Mode v2
• Multi-domain included: 3 domains on the Pro plan
• No unnecessary complexity: no modules you will never use

For large organizations: OneTrust

• IAB TCF certification and Google-certified CMP status available now
• Global coverage, 250+ languages and geographic rules
• Web, mobile apps and connected TV
• An integrated governance platform that goes well beyond cookies

OneTrust is an excellent platform for those who use its depth. For a site that only needs a compliant cookie banner, it is oversized, and the budget reflects that.

Try FlowConsent for free and get compliant today.

Summary table

Conclusion

Choosing between OneTrust and FlowConsent mostly comes down to the size of your organization and the scope of your compliance program:

• Choose FlowConsent if you want a compliant cookie banner that is fast to install, publicly priced and free up to 25,000 sessions per month.
• Choose OneTrust if you need the IAB TCF today, global multichannel coverage and a full governance platform, with an enterprise budget to match.

For the vast majority of websites (SMEs, startups, agencies, e-commerce), FlowConsent does the job without the complexity or the cost of an enterprise suite.

Ready to get started?

• Try FlowConsent for free: free up to 25,000 sessions per month, no credit card required.
• For OneTrust: request a demo and a quote on the vendor's website.

Need help choosing? Book a demo for a free audit of your site and a personalized recommendation.