Brazilian Couples Fight Over Money. How Can Design Help?

Research and prototyping of a Pix-native shared expense app. Focused on reducing emotional conflicts, not just splitting bills.

In progress

Brazilian Couples Fight Over Money. How Can Design Help?

Research and prototyping of a Pix-native shared expense app. Focused on reducing emotional conflicts, not just splitting bills.

In progress

Context

Harmon is a research project (portfolio case study) where I’m exploring how Brazilian couples manage shared finances—and how design can reduce emotional friction in these conversations.

Context

Harmon is a research project (portfolio case study) where I’m exploring how Brazilian couples manage shared finances—and how design can reduce emotional friction in these conversations.

Explore in Figma

Explore in Figma

The Problem

The Problem

Money conversations between couples create tension due to a lack of clear, visible agreements.

Money conversations between couples create tension due to a lack of clear, visible agreements.

Tracking shared expenses requires constant discipline, which often leads to app abandonment.

Tracking shared expenses requires constant discipline, which often leads to app abandonment.

Financial apps don’t reflect the Brazilian reality (Pix, variable income, informality).

Financial apps don’t reflect the Brazilian reality (Pix, variable income, informality).

Initial Hypothesis

Initial Hypothesis

"If financial tracking is fast, collaborative, and contextualized for Brazil, with clear rules defined together, then couples/groups will be able to manage their finances with less friction and more consistent use."

"If financial tracking is fast, collaborative, and contextualized for Brazil, with clear rules defined together, then couples/groups will be able to manage their finances with less friction and more consistent use."

My Approach

My Approach

Exploratory Research

Exploratory Research

Behavioral Analysis

Behavioral Analysis

Rapid Prototyping

Rapid Prototyping

Qualitative User Testing

Qualitative User Testing

The Challenge

The Challenge

How can we enable couples to manage shared finances quickly, fairly, and without conflict, considering the Brazilian context and the reality of variable income?

How can we enable couples to manage shared finances quickly, fairly, and without conflict, considering the Brazilian context and the reality of variable income?

Next Steps

With the discovery and definition phase completed, the challenge has shifted from understanding the problem to translating emotional tensions into concrete interface decisions.

Next Steps

Currently, the project is focused on:

  • Structuring the information architecture

  • Exploring critical flows in wireframes

  • Rapidly testing how financial agreements can be represented without judgment or ambiguity

Future decisions will focus on how design can mediate difficult conversations without taking on the role of an arbitrator.

The next phase of the project will happen at the interface level.

With the discovery and definition phase completed, the challenge has shifted from understanding the problem to translating emotional tensions into concrete interface decisions.


Currently, the project is focused on:


  • Structuring the information architecture

  • Exploring critical flows in wireframes

  • Rapidly testing how financial agreements can be represented without judgment or ambiguity


Future decisions will focus on how design can mediate difficult conversations without taking on the role of an arbitrator.


The next phase of the project will happen at the interface level.

Explore in Figma

Explore in Figma