Location

Location

Umeå, Sweden

Umeå, Sweden

Time

Time

Jan, 2025

Jan, 2025

Role

Role

Interaction Designer

Interaction Designer

What if you could hear your money? Our project, Piggy Pay, is a collaboration between Interaction Design and Advanced Product Design, inspired by the sound of coins in a piggy bank. We explored how modern digital transactions often feel intangible—just numbers on a screen


By designing a playful, tactile, and sound-enhanced experience, we aim to make saving and spending more intuitive, engaging, and fun. Piggy Pay brings money to life through sound, movement, and interaction—helping young adults develop smarter financial habits in a delightful way

What if you could hear your money? Our project, Piggy Pay, is a collaboration between Interaction Design and Advanced Product Design, inspired by the sound of coins in a piggy bank. We explored how modern digital transactions often feel intangible—just numbers on a screen


By designing a playful, tactile, and sound-enhanced experience, we aim to make saving and spending more intuitive, engaging, and fun. Piggy Pay brings money to life through sound, movement, and interaction—helping young adults develop smarter financial habits in a delightful way

Background

Background

In the Sound in Industrial Design course, my team explored the common perception that "money doesn’t feel real on the phone." We investigated how integrating sound into products could create a more tangible connection with money


In the Sound in Industrial Design course, my team explored the common perception that "money doesn’t feel real on the phone." We investigated how integrating sound into products could create a more tangible connection with money

Inspiration

Inspiration

Through research and user interviews, we identified young adults (18-30) as our target audience. They face multiple financial challenges, including budgeting, spending, and saving, with saving being the most pressing issue. Our goal was to design a more engaging and convenient way to encourage saving habits


Through research and user interviews, we identified young adults (18-30) as our target audience. They face multiple financial challenges, including budgeting, spending, and saving, with saving being the most pressing issue. Our goal was to design a more engaging and convenient way to encourage saving habits

Our initial idea came from the sound of coins colliding inside a piggy bank. We aimed to enhance the experience of saving and managing money by incorporating sound and physical interaction, making it engaging and intuitive

Our initial idea came from the sound of coins colliding inside a piggy bank. We aimed to enhance the experience of saving and managing money by incorporating sound and physical interaction, making it engaging and intuitive

Problem & User Analysis

Problem & User Analysis

Ideation

Ideation

We focused on two key aspects: product expression and sound design, centering our concept around two simple yet essential features

We focused on two key aspects: product expression and sound design, centering our concept around two simple yet essential features

Saving

Saving

We wanted to design a practical, familiar product at home. Its tangible experience makes building financial habits easier

We wanted to design a practical, familiar product at home. Its tangible experience makes building financial habits easier

Paying

Paying

Using the phone people already carry, we create a seamless, accessible way to integrate financial habits into daily life

Using the phone people already carry, we create a seamless, accessible way to integrate financial habits into daily life

Sound Exploration

Sound Exploration

For the auditory experience, we categorized sounds into pig, coin, and neutral types, each serving different interactions and functions

For the auditory experience, we categorized sounds into pig, coin, and neutral types, each serving different interactions and functions

User Journey

User Journey

Result

Result

The final outcome consists of two components: a digital application and a physical product

The final outcome consists of two components: a digital application and a physical product

Piggypay (Application)

Piggypay (Application)

Facilitates payments and transfers money into Piggy, the physical savings product

Facilitates payments and transfers money into Piggy, the physical savings product

Piggy (Physical Product)

Piggy (Physical Product)

Placed at home, it stores transferred funds, sets savings goals, tracks progress, and provides periodic reminders

Placed at home, it stores transferred funds, sets savings goals, tracks progress, and provides periodic reminders

Behind The Sences

Behind The Sences

Concept Video

Concept Video

©️Chenxi Li 2025

©️Chenxi Li 2025