Examining the design of choice screens in the context of the Digital Markets Act

The most challenging part of the project was visualising technical process, so that non-technical people can understand it quickly

Lorant Trellay
Product Designer

Examining the design of choice screens in the context of the Digital Markets Act

The most challenging part of the project was visualising technical process, so that non-technical people can understand it quickly

Lorant Trellay
Product Designer

We conducted a pan-European UX study to validate design patterns for android choice screens

The goal was to provide behavioral insights to regulators and tech platforms to ensure that the design of choice screens empowers users to make informed, unbiased decisions.

We tested 7 interctive designs through both qualitative and quantitative research.
We provided actionable UX guidelines based on real user behaviour.
Services
UX Innovation
MVP AI Build
Digital Transformation
Industry
Public Policy / EU Affairs
Client type
Nonprofit
Duration
6 month

How can we design an interface that gives every browser a fair chance - not just the gatekeepers?

The Digital Markets Act mandates that dominant platforms must offer users a choice when selecting their default search engine or browser. But how that choice is presented makes all the difference.

Choice screen design often privileges the gatekeeper’s own browser

No standardized UX principles for implementing the legal mandate

Collaborative research and agile prototyping across 5 EU countries

What “fair” really looks like in practice, we designed a multi-phase research and prototyping process. We tested behavior, bias, and clarity across multiple EU countries, translating insights into practical design guidelines that reflect both user needs and policy goals.

Collaborative workshops

Iterative prototyping

User interviews & Testing:

Quantitative preference testing

Synthesis & recommendations

A UX framework that supports regulatory goals and empowers real consumer choice

Behavior-informed design guidelines

A playbook for building interfaces that promote equality across browser options backed by real user data.

Improved clarity and neutrality

Designs that reduce cognitive load, eliminate manipulative patterns, and make choices easier to understand.

Trusted by regulators and consumer advocates

BEUC used our work to inform key policy discussions and push for ethical UX standards in EU-wide implementation.

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