Phonebooth

Voice-first social connection app for Gen X

MY IMPACT

Led ideation workshops to define key features and user flows

Designed core brand identity and main features

Managed design consistency across work of different designers

Maintained design fidelity through QA with developers

ROLE

Lead UX Designer

TIMELINE

Aug 2024 - Dec 2024

Aug 2024 -
Dec 2024

Aug 2024 -
Dec 2024

TEAM

1 Product Manager
2 Engineers
1 UX Researcher

TOOL

Figma

OVERVIEW

As part of Carnegie Mellon University's Persuasive Design course, my team explored how to help Gen X build meaningful relationships during pivotal life transitions, and designed Phonebooth, a voice-based social connection app. As the design lead, I crafted the app's brand identity and designed the main features. I also managed design consistency across the app by integrating the work of other designers with my own, ensuring a cohesive and unified user experience.

SOLUTION

A voice-first social connection app for Gen X. Let personality speak for itself.

A voice-first social connection app for Gen X. Let personality speak for itself.

Sound in motion

Sound in motion

I designed the app's signature visual: a dynamic sound wave ripple that animates during the splash screen and recording. This element provides real-time feedback while reinforcing the app’s voice-first identity.

Streamlined onboarding

Streamlined onboarding

To cater to Gen X, I designed a simple registration flow: phone number verification, basic profile details, and a short voice introduction. Each profile is presented through a customizable iPod-inspired interface—a nostalgic touch that allows users to express themselves with color rather than photos.

Stories that connect

Stories that connect

Each login presents a reflective prompt for users to share memories, goals, and life experiences. These prompts act as natural conversation starters and help users build connections through shared experiences.

Browse, listen, connect

Browse, listen, connect

Users explore connections by swiping through iPod-style profiles featuring voice recordings. They can record voice replies to the ones they resonate with. This reply-to-connect mechanism turns browsing into meaningful conversation.

Accessibility for all

Accessibility for all

Each voice recording comes with text transcripts, ensuring inclusivity for users with hearing difficulty and providing flexibility in noisy environments.

Voice-first connections

Voice-first connections

To promote deeper communication, I designed a messaging experience that prioritizes voice interactions over text. While users can access a transcript, they must tap to reveal it—an intentional friction that encourages more emotionally rich voice interactions.

PROBLEM

It all started with intriguing statistics: Gen X spends nearly seven hours a week on social media—more than millennials or other age groups.

It all started with intriguing statistics: Gen X spends nearly seven hours a week on social media—more than millennials or other age groups.

What was driving this behavior? We saw an opportunity to explore this phenomenon and develop an intervention to prevent potentially addictive relationships with these platforms.

Source: Nielsen

RESEARCH

What's really happening behind the screen?

What's really happening behind the screen?

To uncover the root causes behind Gen X's behavior, we conducted three focus groups and five interviews, which revealed that what appeared as social media addiction was actually something deeper.

Are Gen X really "addicted" to social media?

Are Gen X really "addicted" to social media?

Our focus groups with Gen X participants challenged our initial assumption and revealed that:

Gen X turns to social media not out of addiction, but as a response to major life changes like divorce, empty nesting, and retirement.

Gen X turns to social media not out of addiction, but as a response to major life changes like divorce, empty nesting, and retirement.

Quotes from participants

These midlife transitions lead many to experience a profound loss of purpose, loneliness, and suddenly abundant free time.

What appears as digital dependency is actually a natural human response—the desire to rebuild social connections when established life patterns are disrupted.

What appears as digital dependency is actually a natural human response—the desire to rebuild social connections when established life patterns are disrupted.

Why does connection feel so hard for Gen X?

Why does connection feel so hard for Gen X?

Having shifted our focus from social media use to connection-building challenges, we conducted interviews with five Gen X individuals using directed storytelling to explore the underlying emotions and motivations.

Through affinity clustering, several key themes were identified from the interviews:

Many were seeking romantic connections after divorce, late singledom, or widowhood.

Limited social circles made it difficult to meet potential friends or partners.

Traditional dating apps felt superficial and designed for younger generations.

Despite longing for connection, many felt vulnerable about putting themselves out there.

REFRAMING

Our research journey transformed our understanding: Gen X's increased social media use wasn't the problem—it was their attempt to solve a deeper emotional need during significant life transitions.

How might we help Gen X find authentic connections, both romantic relationships and friendships, during life transitions?

How might we help Gen X find authentic connections, both romantic relationships and friendships, during life transitions?

IDEATION

With the research insights in mind, we came up with the idea of a voice-based social connection app to prioritize personality and meaningful conversation over visual impressions.

With the research insights in mind, we came up with the idea of a voice-based social connection app to prioritize personality and meaningful conversation over visual impressions.

As the design lead, I planned and led the end-to-end design process, from feature ideation to prototyping and the final handover to developers. The process unfolded in four phases:

Making voice interaction natural for Gen X users

Making voice interaction natural for Gen X users

I facilitated a workshop where team members recorded self-introductions as if they were Gen X users. This not only helped us build empathy but surfaced crucial UX considerations around making voice interactions feel natural and comfortable. I then led a Crazy 8's exercise to brainstorm specific features with the team.

Crazy 8's: a rapid ideation technique where participants sketch eight ideas in eight minutes

Crazy 8's: a rapid ideation technique where

participants sketch eight ideas in eight minutes

Building features with technical feasibility in mind

Building features with technical feasibility in mind

Working alongside developers, I prioritized features using the MoSCoW matrix to identify our MVP essentials. This ensured we could deliver on our promise of voice-first connection while maintaining technical feasibility.

As we designed iteratively, I prioritized three core principles: fostering authentic connections through voice, ensuring intuitiveness, and user privacy.

As we designed iteratively, I prioritized three core principles: fostering authentic connections through voice, ensuring intuitiveness, and user privacy.

Design decisions I made in the early iteration

EVALUATION

What did users think?

What did users think?

To evaluate our solution, we conducted user testing with six Gen X participants. Overall, we received very positive feedback. Participants particularly valued how the app allowed them to express their personality naturally and judge others on substance rather than appearance.

Easy Profile Creation

All participants successfully completed the end-to-end profile creation process.

Constructive Prompts

Participants said the prompts were comfortable and non-invasive and encouraged authentic self-expression.

Authentic Connections

All participants found voice interactions promoting deeper, more authentic connections.

Accessible Design

The transcript feature was universally appreciated for improving accessibility and usability.

Feedback from participants

Easy Profile Creation

All participants successfully completed the end-to-end profile creation process.

Constructive Prompts

Participants said the prompts were comfortable and non-invasive and encouraged authentic self-expression.

Authentic Connections

All participants found voice interactions promoting deeper, more authentic connections.

Accessible Design

The transcript feature was universally appreciated for improving accessibility and usability.

Feedback from participants

DEVELOPMENT & SHOWCASE

Bringing Phonebooth to life

Bringing Phonebooth to life

After finalizing the design, I created detailed documentation for design handoff. I also conducted UX/UI reviews with the developers to ensure design fidelity.

Visitors tried out our coded prototype at our course's final project presentation fair!

Visitors tried out our coded prototype at our course's final project presentation fair!

They particularly praised Phonebooth's innovative approach to dating apps and thoughtful consideration of Gen X users' emotional needs.

We designed stickers for visitors :D

TAKEAWAYS

Stay open to pivots

Stay open to pivots

Leading this project taught me that the most impactful solutions often emerge from challenging our initial assumptions. By staying open to new insights, we shifted from addressing the surface behavior to solving the root cause.

Listen to unspoken needs

Listen to unspoken needs

While our research participants talked about social media usage, their stories revealed deeper emotional needs that were not explicitly stated. This reinforced the importance of reading between the lines during user research and focusing on emotional undertones rather than just surface-level behaviors.

Challenge convention in problem-solving

Challenge convention in problem-solving

By choosing voice as our primary medium, we realized how breaking conventional boundaries can spark innovations. Sometimes the best solutions emerge not from obvious approaches, but from addressing user needs in unexpected ways.

More than a team, we're a family. Proud of what we built together!

More than a team, we're a family.

Proud of what we built together!

Let's bridge the gap between people and

technology together.

© 2025 Made with ❤️ by Hedy Hui.

Let's bridge the gap between people and

technology together.

© 2025 Made with ❤️ by Hedy Hui.

Let's bridge the gap between people and technology together.

© 2025 Made with ❤️ by Hedy Hui.

Phonebooth

Voice-first social connection app for Gen X

MY IMPACT

Led ideation workshops to define key features and user flows

Designed core brand identity and main features

Managed design consistency across work of different designers

Maintained design fidelity through QA with developers

Phonebooth

Voice-first social connection app for Gen X

MY IMPACT

Led ideation workshops to define

key features and user flows

Designed core brand identity

and main features

Managed design consistency

across work of different designers

Maintained design fidelity

through QA with developers