Simplifying mobile experience for 2M+ Vodafone users

Senior product designer

8 months

Mobile app

10+ person cross-functional team

MY ROLE

  • Leading initial discovery research to understand user needs and business challenges.

  • Co-defining the product strategy, prioritising features and validating hypotheses.

  • Conducting end-to-end usability testing, data analysis and iterative UX research.

  • Facilitating team workshops and aligning cross-functional stakeholders.

  • Prototyping, wireframing and designing final UI components.

PROJECT OVERVIEW

Companion Plans were designed to give Vodafone users a simple way to manage additional plans online, without needing to visit a store or call support.

The project went through several phases, starting as a discovery and growing into a fully integrated solution. Along the way, we relied on user research, data insights and continuous improvements to make sure it met both customer needs and business goals.

THE PROBLEM

How might we enable plan sharing through self-service?

Vodafone customers can’t manage or add companions through the My Vodafone app The only way to access this feature is by visiting a store or calling customer support.

EXISTING CHALLENGES

No digital access

Users could only manage their plans by visiting a store or calling support, leading to unnecessary friction.

Feature awareness

Many customers weren't aware that plan sharing was already available or how they could benefit from it.

Self-Service flow

There was no in-app journey for users to independently manage and share their plans.

Support dependency

The absence of a digital option led to increased pressure on customer service channels.

THE SOLUTION

Easily add friends & family to your plan — all in one place

Easily add friends & family to your plan — all in one place

Companion Plan lets Vodafone customers to add and manage additional people on their mobile plans directly through the My Vodafone app without needing to call support or visit a store. It streamlines the experience, empowers users to self-serve and increases plan adoption by making shared plans more accessible and visible.

Companion Plan lets Vodafone customers to add and manage additional people on their mobile plans directly through the My Vodafone app without needing to call support or visit a store. It streamlines the experience, empowers users to self-serve and increases plan adoption by making shared plans more accessible and visible.

THE RESEARCH

Turning challenges into measurable outcomes

Through stakeholders discussions, I gained a clear understanding of their challenges and the key outcomes they aimed to achieve, then I aligned these with user needs by analysing tNPS scores and insights from help centre calls.

BUSINESS & USER GOALS

Adoption

Increase adoption of Companion Plans, driving more views & purchases.

Adoption

Increase adoption of Companion Plans, driving more views & purchases.

Self-service

Reduce the number of support calls and in-store visits.

Self-service

Reduce the number of support calls and in-store visits.

Ease of use

Easily add a family member to an existing or new plan.

Ease of use

Easily add a family member to an existing or new plan.

Convenience

Manage plans independently within the app, at their convenience.

Convenience

Manage plans independently within the app, at their convenience.

WORKING WITH CONSTRAINTS

Process limitations

A traditional project mindset often led to long development cycles, where documentation was prioritised over rapid learning and iteration, creating risks in delivering a user-centred solution efficiently.

Timeline changes

The urgency to launch the feature quickly added pressure to the design process, requiring a careful balance between speed, quality and stakeholder alignment.

Technical constraints

The existing technology was outdated and not built for innovation. A poorly designed architecture, unreliable backend and unmaintainable code limited our ability to implement forward-thinking solutions.

UX METRICS

Engagement

  • Time on task: Total time spent managing plans and adding new companions

  • Engagement: Frequency of app usage

  • Success rate: Number of users successfully adding Companion Plans

Distribution

  • Organic growth: Increase in adoption without promotion

Feature discovery: More users exploring Companion Plans

Plan sharing: Rise in users adding others to their plans

Conversion

Purchase uplift: Increase in Companion Plan purchases

Journey success: Reduction in drop-offs during the upgrade process

Feature adoption: Growth in users completing the add-a-companion flow

FLOW MAPPING

Mapping out the current journeys revealed areas to pay attention to when validating through research and form the MVP.

THE IDEATION

Companion Plans for everyday connection

In this phase I created sketches, wireframes and prototypes, then refined them based on usability feedback. I also introduced new components to support the feature within our existing design system.

SKETCHING

USABILITY TESTING

I conducted usability testing with five participants. The goal was to identify pain points, evaluate user understanding, confidence, and ease of completing the Companion Plan journey, including visibility, navigation, guidance, and error handling.

IMPROVED USER JOURNEY

After analysing usability testing findings and conducting affinity mapping, I redesigned the user journey to make it easier for people to discover and navigate Companion Plans. By introducing clear entry points and improving visual hierarchy, users could find plans faster, understand their options and stay engaged without needing to leave the platform.

Let's
work
together

iamumut@gmail.com

I’m currently open to full-time opportunities. Feel free to reach out to explore my other case studies, chat about potential work, or just catch up over coffee.

© Umut Aydin 2025 ♥️

Let's
work
together

iamumut@gmail.com

I’m currently open to full-time opportunities. Feel free to reach out to explore my other case studies, chat about potential work, or just catch up over coffee.

© Umut Aydin 2025 ♥️

Simplifying mobile experience for 2M+ Vodafone users

Designing a simpler mobile experience for 2M+ Vodafone users

Senior product designer

8 months

Mobile app

10+ person cross-functional team

MY ROLE

  • Leading initial discovery research to understand user needs and business challenges.

  • Co-defining the product strategy, prioritising features and validating hypotheses.

  • Conducting end-to-end usability testing, data analysis and iterative UX research.

  • Facilitating team workshops and aligning cross-functional stakeholders.

  • Prototyping, wireframing and designing final UI components.

PROJECT OVERVIEW

Companion Plans were designed to give Vodafone users a simple way to manage additional plans online, without needing to visit a store or call support.

The project went through several phases, starting as a discovery and growing into a fully integrated solution. Along the way, we relied on user research, data insights and continuous improvements to make sure it met both customer needs and business goals.

THE SOLUTION

Easily add friends & family to your plan — all in one place

Companion Plan lets Vodafone customers to add and manage additional people on their mobile plans directly through the My Vodafone app without needing to call support or visit a store. It streamlines the experience, empowers users to self-serve and increases plan adoption by making shared plans more accessible and visible.

THE PROBLEM

How might we enable plan sharing through self-service?

How might we enable plan sharing through self-service?

Vodafone customers can’t manage or add companions through the My Vodafone app The only way to access this feature is by visiting a store or calling customer support.

Vodafone customers can’t manage or add companions through

the My Vodafone app The only way to access this feature is by visiting

a store or calling customer support.

EXISTING CHALLENGES

No digital access

Users could only manage their plans by visiting a store or calling support, leading to unnecessary friction.

Feature awareness

Many customers weren't aware that plan sharing was already available or how they could benefit from it.

Self-Service flow

There was no in-app journey for users to independently manage and share their plans.

Support dependency

The absence of a digital option led to increased pressure on customer service channels.

THE SOLUTION

Easily add friends & family to your plan — all in one place

Companion Plan lets Vodafone customers to add and manage additional people on their mobile plans directly through

the My Vodafone app without needing to call support or visit a store. It streamlines the experience, empowers users to self-serve

and increases plan adoption by making shared plans more accessible and visible.

QUICK access

Users can easily access the Companion Plan right from the My Vodafone app homepage

Users can easily access the Companion Plan right from the My Vodafone app homepage

PREPARE

Before starting the journey, users are guided through a short pre-checklist to help them prepare the required information

Before starting the journey, users are guided through a short pre-checklist to help them prepare the required information

REVIEW

Users can review and edit the companion details to ensure everything is correct

Users can review and edit the companion details to ensure everything is correct

WHAT's NEXT

Once confirmed, users are shown a clear summary and next steps, so they know exactly what to expect next

Once confirmed, users are shown a clear summary and next steps, so they know exactly what to expect next

THE RESEARCH

Turning challenges into measurable outcomes

Turning challenges into
measurable outcomes

Through stakeholders discussions, I gained a clear understanding of their challenges and the key outcomes they aimed to achieve, then I aligned these with user needs by analysing tNPS scores and insights from help centre calls.

Through stakeholders discussions, I gained a clear understanding of their challenges and the key outcomes they aimed to achieve, then I aligned these with user needs by analysing tNPS scores and insights from help centre calls.

BUSINESS & USER GOALS

Adoption

Increase adoption of Companion Plans, driving more views & purchases.

Adoption

Increase adoption of Companion Plans, driving more views & purchases.

Self-service

Reduce the number of support calls and in-store visits.

Self-service

Reduce the number of support calls and in-store visits.

Ease of use

Easily add a family member to an existing or new plan.

Ease of use

Easily add a family member to an existing or new plan.

Convenience

Manage plans independently within the app, at their convenience.

Convenience

Manage plans independently within the app, at their convenience.

WORKING WITH CONSTRAINTS

Process limitations

A traditional project mindset often led to long development cycles, where documentation was prioritised over rapid learning and iteration, creating risks in delivering a user-centred solution efficiently.

Timeline changes

The urgency to launch the feature quickly added pressure to the design process, requiring a careful balance between speed, quality and stakeholder alignment.

Technical constraints

The existing technology was outdated and not built for innovation. A poorly designed architecture, unreliable backend and unmaintainable code limited our ability to implement forward-thinking solutions.

UX METRICS

Engagement

  • Time on task: Total time spent managing plans and adding new companions

  • Engagement: Frequency of app usage

  • Success rate: Number of users successfully adding Companion Plans

Distribution

  • Organic growth: Increase in adoption without promotion

Feature discovery: More users exploring Companion Plans

Plan sharing: Rise in users adding others to their plans

Conversion

Purchase uplift: Increase in Companion Plan purchases

Journey success: Reduction in drop-offs during the upgrade process

Feature adoption: Growth in users completing the add-a-companion flow

FLOW MAPPING

Mapping out the current journeys revealed areas to pay attention to when validating through research and form the MVP.

THE IDEATION

Companion Plans for everyday connection

Companion Plans for
everyday connection

In this phase I created sketches, wireframes and prototypes, then refined them based on usability feedback. I also introduced new components to support the feature within our existing design system.

In this phase I created sketches, wireframes and prototypes, then refined them based on usability feedback. I also introduced new components to support the feature within our existing design system.

SKETCHING

USABILITY TESTING

I conducted usability testing with five participants. The goal was to identify pain points, evaluate user understanding, confidence, and ease of completing the Companion Plan journey, including visibility, navigation, guidance, and error handling.

IMPROVED USER JOURNEY

After analysing usability testing findings and conducting affinity mapping, I redesigned the user journey to make it easier for people to discover and navigate Companion Plans. By introducing clear entry points and improving visual hierarchy, users could find plans faster, understand their options and stay engaged without needing to leave the platform.

THE MVP

Making shared plans simple from day one

Making shared plans simple from day one

We launched a focused MVP for Companion Plans that delivered immediate value by enabling users to easily add and manage others, built with scalability in mind to support future iterations and evolving user needs

Let's
work
together

iamumut@gmail.com

I’m currently open to full-time opportunities. Feel free to reach out to explore my other case studies, chat about potential work, or just catch up over coffee.

© Umut Aydin 2025 ♥️

Let's
work
together

iamumut@gmail.com

I’m currently open to full-time opportunities. Feel free to reach out to explore my other case studies, chat about potential work, or just catch up over coffee.

© Umut Aydin 2025 ♥️

Let's
work
together

iamumut@gmail.com

I’m currently open to full-time opportunities. Feel free to reach out to explore my other case studies, chat about potential work, or just catch up over coffee.

© Umut Aydin 2025 ♥️