Interface interference · European Union
Bundled options
The label “Bundled options” describes this recurring design mechanism: distinct products, services, permissions or purposes are grouped under one choice so the user cannot readily understand or select them separately. It is a design and research taxonomy, not a standalone legal conclusion. Depending on the complete journey and likely effect, current EU consumer or sector rules may require separate assessment. No published Digital Fairness Act proposal currently creates a pattern-specific prohibition or duty under this label.
- Family
- Interface interference
- Also known as
- Journey stages
Definition
What is this pattern?
Distinct products, services, permissions or purposes are grouped under one choice so the user cannot readily understand or select them separately. The label describes a recurring design mechanism; whether a particular implementation is harmful or unlawful depends on the complete journey, audience, evidence and rules within scope.
How it works
Distinct products, services, permissions or purposes are grouped under one choice so the user cannot readily understand or select them separately. Distinct products or services are packaged behind one selection even though their separate price, function or necessity matters to the choice.
Warning signs
- One control has two or more separable consequences.
- Component choices or prices are absent, hidden or materially harder.
- The bundle favours a business outcome or adds cost, data use or commitment.
Potential harms
- A customer may pay for an unwanted component because two distinct products are presented as one indivisible choice.
- A buyer may pay for unwanted services or misunderstand which components are optional.
Learn by comparison
What does this look like?
These fictional examples make the design mechanism easier to recognise. They do not depict a real company and do not establish that an individual interface is unlawful.
Illustrative example 1 · Event booking
A fictional ticket seller offers a concert ticket only through a control that also adds a city travel pass, although the travel component is separately deliverable and not required for entry.
Potential consumer harm: A customer may pay for an unwanted component because two distinct products are presented as one indivisible choice.
Illustrative example 2 · Business software pricing
A fictional service offers a core plan only as a bundle with premium support and data migration, while implying those extras can be removed later although no controls exist.
Potential consumer harm: A buyer may pay for unwanted services or misunderstand which components are optional.
Ticket and travel pass presented as one package
A fictional ticket seller offers a concert ticket only through a control that also adds a city travel pass, although the travel component is separately deliverable and not required for entry.
Ticket plus city travel. The only visible selection combines entry and an optional transport product.. Selected: Choose package €78. Not selected: Choose ticket only €65
Build your booking. The €65 ticket and optional €13 travel pass have separate controls.. Not selected: Choose ticket only €65. Not selected: Choose package €78. Choice consequences, expanded: The consequence of selecting “Choose ticket only €65” is displayed beside the option.
Why the first version can mislead: The presentation changes what the user can notice or predict at the checkout decision. The problematic state shows: “The only visible selection combines entry and an optional transport product.” Its influence should be tested by comparing the consequence and usability of “Choose package €78” with “Choose ticket only €65”. A customer may pay for an unwanted component because two distinct products are presented as one indivisible choice.
What a fairer design does: Show the event ticket and optional travel pass as separately priced selections before the basket changes.
Show annotated differences (2)
- Not selected: Choose ticket only €65In “Ticket and travel pass presented as one package”, this element shows how bundled options can shape the decision.
- Choice consequences, expanded: The consequence of selecting “Choose ticket only €65” is displayed beside the option.In “Ticket and travel pass presented as one package”, this element keeps the clearer alternative visible at the same decision point.
Review questions (3)
- Do “Choose package €78” and “Choose ticket only €65” receive comparable prominence and explain their consequences before activation?
- Capture every peer option, its default state and visual prominence; do those states support “One control has two or more separable consequences”?
- What neutral rendering or comprehension result would falsify the classification, particularly in light of “Genuinely indivisible product”?
Support and migration locked into one plan
A fictional service offers a core plan only as a bundle with premium support and data migration, while implying those extras can be removed later although no controls exist.
Complete launch bundle. Core access, support and migration appear as one unavoidable selection.. Displayed amount: €480: €480/month. Core plan €260/month
Build your plan. Core access and genuinely optional services are priced separately.. Displayed amount: €260: Core plan €260/month. €480/month. Price, period and commitment, expanded: The price and material terms associated with “Core plan €260/month” remain beside this choice.
Why the first version can mislead: The presentation changes what the user can notice or predict at the pricing decision. The problematic state shows: “Core access, support and migration appear as one unavoidable selection.” Its influence should be tested by comparing the consequence and usability of “€480/month” with “Core plan €260/month”. A buyer may pay for unwanted services or misunderstand which components are optional.
What a fairer design does: Show the core service and separable extras with individual prices and controls, or explain why a bundle cannot be split.
Show annotated differences (2)
- Core plan €260/monthIn “Support and migration locked into one plan”, this element shows how bundled options can shape the decision.
- Price, period and commitment, expanded: The price and material terms associated with “Core plan €260/month” remain beside this choice.In “Support and migration locked into one plan”, this element keeps the clearer alternative visible at the same decision point.
Review questions (3)
- Do “€480/month” and “Core plan €260/month” receive comparable prominence and explain their consequences before activation?
- Place the compared prices, billing periods and material terms on one evidence sheet; where does it support “Component choices or prices are absent, hidden or materially harder”?
- What neutral rendering or comprehension result would falsify the classification, particularly in light of “transparent bundle with equally accessible component options and prices”?
What is a fairer alternative?
Show component consequences and prices and provide granular, equally accessible choices where components are separable.
Legal and information status
Legal position at a glance
Distinct products, services, permissions or purposes are grouped under one choice so the user cannot readily understand or select them separately. Distinct products or services are packaged behind one selection even though their separate price, function or necessity matters to the choice. Risk increases where the mechanism changes a material consumer choice, hides a consequence or makes a genuine alternative harder to use. The taxonomy label remains a review prompt and does not establish an infringement.
Dark-pattern research taxonomy
Editorial analysis
The cited research sources support identification and comparison of this recurring interface mechanism. They do not determine that a particular interface is unlawful.
UCPD Articles 5 to 9, where applicable
Possible risk indicator
Depending on the trader, audience, overall presentation, material information and likely transactional effect, the facts may require a separate assessment under the applicable UCPD provisions.
Evidence layers and open questions
Applicable law, enforcement records, policy preparation, stakeholder input, editorial analysis and unknown future details remain visibly distinct.
Current lawCurrent law
The UX label “Bundled options” is not a standalone EU offence. Depending on the trader, audience, complete presentation, omitted information and likely transactional effect, the observed facts may require a separate assessment under the applicable UCPD provisions or another instrument within scope.
Under considerationUnder consideration
The Commission is preparing a Digital Fairness Act initiative, but the call for evidence does not select a final rule for bundled options or establish that this taxonomy term will appear in a proposal.
Editorial analysisEditorial analysis
The pattern definition, variants and examples on this page use the cited research taxonomy sources to support recognition and comparison. That analytical classification is not a legal conclusion about an individual interface.
UnknownUnknown
No published DFA proposal currently establishes a definition, covered actor, legal threshold, duty, remedy, transition rule or application date for bundled options. Those details remain unknown pending primary legislative text.
Context matters
Context and boundary cases
- One control has two or more separable consequences.
- Component choices or prices are absent, hidden or materially harder.
- The bundle favours a business outcome or adds cost, data use or commitment.
- Exclude or qualify the label where genuinely indivisible product.
- Exclude or qualify the label where transparent bundle with equally accessible component options and prices.
When a similar design can serve a legitimate purpose
- A similar design should not be classified this way where genuinely indivisible product.
- A similar design should not be classified this way where transparent bundle with equally accessible component options and prices.
Operational review
What teams should review
- Teams
- Do “Choose package €78” and “Choose ticket only €65” receive comparable prominence and explain their consequences before activation?
- Capture every peer option, its default state and visual prominence; do those states support “One control has two or more separable consequences”?
- What neutral rendering or comprehension result would falsify the classification, particularly in light of “Genuinely indivisible product”?
- Do “€480/month” and “Core plan €260/month” receive comparable prominence and explain their consequences before activation?
- Place the compared prices, billing periods and material terms on one evidence sheet; where does it support “Component choices or prices are absent, hidden or materially harder”?
- What neutral rendering or comprehension result would falsify the classification, particularly in light of “transparent bundle with equally accessible component options and prices”?
- Which complete journey evidence supports or contradicts the bundled options classification?
Evidence to retain
- Versioned captures of the Checkout and Pricing states before, during and after the relevant decision
- Configuration, content and event records supporting the observed bundled options mechanism
- Responsive, keyboard and assistive-technology review of every material option and consequence
- Price-component, offer-version and calculation records linked to the captured screen
- Control defaults, validation rules and consent or selection state changes
Legal map and implementation tools
Evidence base
Sources
- An Ontology of Dark Patterns KnowledgeGray et al.; ACM CHI 2024 · Secondary · checked 2026-09-14 · DOI 10.1145/3613904.3642436; arXiv:2309.09640
- Behavioural study on unfair commercial practices in the digital environmentEuropean Commission, Directorate-General for Justice and Consumers · Secondary · checked 2026-09-14 · DOI 10.2838/859030; ISBN 978-92-76-52316-1
- Unfair Commercial Practices DirectiveEuropean Parliament and Council of the European Union · Primary · checked 2026-08-09 · Directive 2005/29/EC; CELEX 02005L0029-20220528
- Digital Fairness Act: call for evidence for an impact assessmentEuropean Commission · Primary · checked 2026-08-09 · Initiative 14622; Ares(2025)6275573
- Commission work programme 2026: Europe's Independence MomentEuropean Commission · Primary · checked 2026-09-14 · COM(2025) 870 final; CELEX 52025DC0870; Annex I item 30