Book a Demo
Book a Demo

Stay ahead of new privacy laws with the Syrenis US State Legislation Tracker. See what’s changing

Syrenis vs Didomi

Didomi alternative for enterprise consent and preference management

Syrenis is the Didomi alternative for enterprises whose hard problem isn’t the banner, it’s getting every consent and preference into every system that uses customer data. Didomi is strongest at capturing consent across websites, apps, connected TV and ad tech, while Syrenis goes deeper on what happens next: identity-linked preference records that update across 350+ integrations in real time.

The other Didomi alternatives most teams shortlist are OneTrust, Usercentrics and its Cookiebot brand, TrustArc, Osano and Ketch. Which one fits depends on whether you’re replacing a consent banner, a privacy suite or the preference layer your CRM depends on.

Book a Demo

350+ Integrations

View all
Comparison

Syrenis vs Didomi, side by side

Both are specialist consent and preference platforms, so this isn't the usual specialist-against-suite choice. The difference is where each one puts its depth.

Built around +

Consent and preferences as a system of record across the whole estate

Consent capture and privacy UX across web, apps, connected TV and ad tech

Preference management +

Unlimited channels and preference types, multi-brand preference centers, a customer service portal, email action links and progressive profiling

Preference centers, embedded forms and widgets that collect zero-party data, with built-in analytics

Identity +

Consent linked to known identities and carried across devices as people sign in

Consent profiles, plus a cross-device feature so users make their choice once

Integrations +

350+ integrations, API-first, with changes pushed to CRM, CDP, marketing, data and service systems as they happen

Out-of-the-box connectors, batch export, webhooks and a consents API, with bespoke connectors built on request

Where consent is captured +

Web, mobile and server-side

Web, iOS and Android, AMP, Unity, connected TV, Flutter and React Native, plus server-side tagging through Addingwell

Frameworks +

IAB TCF 2.3, Google Consent Mode v2 and Global Privacy Control

IAB TCF, GPP, Google Consent Mode v2, Microsoft UET and AWS consent modes, and Global Privacy Control

Implementation +

Design phase before anything is configured, then five parallel workstreams through to live service

A UI-based console, a four-step migration framework and a dedicated solutions architect

Pricing +

Bespoke quote

Quote-based. The CMP is priced on monthly unique visitors

Best fit +

Regulated, multi-brand organizations where preferences drive CRM, service and marketing decisions

Publishers, media and consumer brands with high web, app and ad tech consent volumes

Why enterprises choose Syrenis over Didomi

Didomi and Syrenis both treat consent as the product. They disagree about what the product is for.

Preferences as a system of record

Didomi built its reputation at the moment of capture: the banner, the opt-in rate, the consent string an ad partner reads. Syrenis is built around what a preference has to do after that. Every channel, topic and brand choice sits in one record tied to a known customer, and it’s the same record your CRM, email platform and contact center read from.

350+ integrations that update in real time

Syrenis connects to more than 350 systems, including Salesforce, Microsoft Dynamics, Adobe, Braze, Marketo, Snowflake, Databricks, ServiceNow and Epic. Changes travel as they happen instead of waiting for the next export, so an opt-out recorded in one system has reached the others before your next send.

Consent specialists since 2000

Syrenis has built consent and preference software since 2000, long before cookie banners were a legal requirement. It shows in the parts that matter in a large estate: customer service tooling, loaders for legacy data and connectors for complex CRM APIs.

Why teams look for alternatives to Didomi

Didomi is a capable CMP, and most teams that look elsewhere aren’t unhappy with their banner. They’ve hit a problem the banner was never meant to solve:

  • Preferences have to drive CRM, email and service systems, not just the tags on a website
  • Customers change their minds on the phone, in a branch or from an email, not only on a banner
  • One person turns up as several profiles across brands and systems, and consent has to follow the person rather than the browser
  • The business is regulated, and auditors want one consent history per customer across every channel
  • Didomi’s 2025 acquisitions of Addingwell and Sourcepoint point its roadmap at publishers, advertisers and server-side data collection. That’s the right direction for an ad-funded business and a different one from a CRM-led preference program
Competitors

Didomi competitors

Who competes with Didomi depends on which part of Didomi you’d be replacing.

Web and app consent platforms

Usercentrics and Cookiebot. Strong web and app consent with deep IAB TCF coverage and a large European customer base.

Osano. Quick to deploy and simple to run, built for smaller teams that want a short implementation.

Switching

Why teams switch from Didomi to Syrenis

Teams switch when preferences stop being a website feature and become data the whole business depends on. Syrenis gives privacy teams the audit trail and marketing teams a current, identity-resolved signal, from the same record.

Preference depth across channels and brands

Syrenis supports unlimited channels and preference types, with choices broken down by topic, channel, brand and business unit. Preference centers can be hosted or embedded, branded per business and multilingual, so a group with a dozen brands runs one program instead of a dozen.

Platform Architecture

Built for regulated, high-volume estates

The Syrenis platform is designed for organizations where consent errors carry regulatory and commercial weight.

API-first and cloud-native

Syrenis is cloud-native and API-first, so consent and preferences move between your apps, platforms and legacy systems in real time, without a nightly batch in the middle.

Testimonials

What customers and analysts say

Syrenis is a representative vendor in the April 2026 Gartner® Market Guide for Privacy UX.

Implementing Syrenis has enabled us to deliver tailored and specific content, ensuring that our clients only receive the right information based on their requirements. We have a complicated set of preference channels, which Syrenis streamlines to improve the customer experience.

Head of Compliance

LexisNexis

Fully customizable, Syrenis has developed a deep and rich feature set across all four service categories, especially where integration is concerned, equally handling data from legacy systems through data loader functions and complex CRM APIs.

Gartner® Market Guide for Privacy UX

April 2026

Switching from Didomi

Syrenis imports existing consent records through APIs and exported consent logs, so customers’ earlier choices carry across without asking them to consent again. The design phase maps your current purposes, vendors and preference structure before anything goes live.

Book a demo to see your own preference model running in Syrenis.

Book a Demo
Support

Frequently asked questions

What are the best Didomi alternatives?

The Didomi alternatives most often compared are Syrenis, OneTrust, Usercentrics and Cookiebot, TrustArc, Osano and Ketch. Usercentrics and Osano are closest on web and app consent, OneTrust and TrustArc add broad privacy governance, and Syrenis goes deepest on preference management and on getting consent into every connected system.

Why do companies look for a Didomi alternative?

Usually because preferences have outgrown the website. Teams need choices made on the phone, in an email or in a branch to reach the CRM and every other system in real time, tied to one customer rather than one browser, with an audit trail regulators accept. Some also want a vendor focused on CRM-led programs rather than publishing and ad tech.

What's the difference between Didomi and Syrenis?

Both are specialist consent and preference platforms. Didomi’s depth is in capture: banners, SDKs for apps and connected TV, IAB TCF and ad tech, and server-side tagging through Addingwell. Syrenis’ depth is in what happens after capture: identity-linked preference records, a customer service portal and real-time sync across 350+ integrations.

What's the difference between Didomi and OneTrust?

OneTrust is a broad governance suite that covers privacy, risk and AI governance, with consent as one module. Didomi is a specialist consent and preference platform with particular strength in web, app and ad tech consent. Teams that need consent to drive CRM, service and marketing systems often add a third option to that comparison, a specialist like Syrenis. See our OneTrust alternative page.

How much does Didomi cost?

Didomi doesn’t publish prices. Its offers page says the consent management platform is priced on monthly unique visitors, compliance monitoring on the number of scans, and preference and privacy request tools on user database size and API calls. Its Addingwell server-side tagging product has a free plan for 100,000 requests. Syrenis is also priced by bespoke quote.

Does Didomi own Sourcepoint?

Yes. Didomi announced its acquisition of Sourcepoint, a privacy technology company with a strong publisher customer base, in July 2025. That followed a majority investment from Marlin Equity Partners and, in April 2025, the acquisition of the server-side tagging platform Addingwell.

Can Syrenis replace Didomi?

Yes. Syrenis covers cookie consent with site scanning, IAB TCF 2.3, Google Consent Mode v2 and Global Privacy Control, and adds preference centers, a customer service portal and real-time sync across 350+ integrations. If you rely on Didomi for connected TV consent, check those environments with the Syrenis team first.

Does Syrenis support IAB TCF and Google Consent Mode?

Yes. Syrenis supports IAB TCF 2.3 out of the box, generating and storing consent strings for the advertising ecosystem, and it passes consent signals to Google through Google Consent Mode v2. It also honors Global Privacy Control signals.