Rethinking the economy
Product Designer
Financial Group
Jun 2022 / Dec 2022
Team Size
8 participants
*I was the only designer
Stakeholder understanding
Agile Methodologies
Problem Research Analysis
Research Planning
Qualitative User Research
Product Research Analysis
Competition Analysis
Co-exploration sessions
User Define
Co-define sessions
Information Arquitecture
Interaction Flow
Interaction Design
Conversational Design
Design Documentation
UI Kit Creation
Product Design
Context and the Challenge
Duollar is a wallet application that enables users to invest their money, stablecoin buying/selling transactions, gain financial education, and, above all, save.
A country where the currency loses value every day, lack of financial education, and limited access to foreign currencies. This scenario, combined with missed investment opportunities, can be discouraging for an Argentine. Alternatively, imagine owning a small business but having to pay high fees for customer payment processing through dominant market platforms. This challenge motivated the creation of Duollar.
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The Journey
How was the journey? Direct participation of the client during all the process, based on the communication, short times, quick prototypes and clear definitions.

The process began with conducting workshops with the client and stakeholders. These workshops served two purposes: the first was to raise awareness about UX design practices in a company and how it can impact a service or product, and the second was to define the target persona and develop a roadmap for at least four months with them.

It was crucial to get all stakeholders to agree on project objectives and target. I conducted a series of interviews with potential users to ensure that the solution met their needs. These people are from Carhué, an Argentine town where Duollar's service will be evaluated for the first MVP.
Workshop with the stakeholders - I'm the one with the notebook up here
Our users and the context
I analyzed Duollar's main competitors, services such as MercadoPago, Banco Provincia, and partly Ripio, Bitso, Buen Bit, and Brubank. However, Duollar's difference from these competitors is that they focuses on a young audience knowledgeable about cryptocurrencies.

Duollar's goal is to educate people between the ages of 30 and 40 with little knowledge of cryptocurrencies and financial education. Our aim is to provide an easy-to-use service that teaches users about investment and stablecoins. The most important and differentiating factor of Duollar compared to other services is that transaction fees for entrepreneurs and stores are 0%.
Buying Duollars Flow
Arquitecture, navigation and communication
Once the research and definition stage was completed, I continued to create the application's user flows, information architecture, and navigation.
Some of the screens of the onboarding
Sign Up Flow
I worked on the service's communication, the voice and tone, it was crucial to have an effective communication on the service, especially for an audience that is unfamiliar with cryptocurrencies or investments, and may therefore have some degree of mistrust.
Some of the screens of the onboarding
Profile settings, account details and support.
The visual guidelines
I created a UI kit and guidelines for developers. I created it using atomic design, and its development is hybrid, both for iOS and Android. The brand, including the color palette and logos, was created by a graphic design agency.
The UI Kit
User Testing
I created sketches of the different screens, worked on medium fidelity, and once the wireframes were done I moved on to creating a prototype. As part of the wallet application design process, I conducted usability tests with a medium-fidelity prototype involving 6 participants from Carhué, the small town in Argentina that will be released the app. In this case, the tests were focused on evaluating the ease of use and understanding of the application's functionalities.

During the tests, participants performed a series of tasks that simulated everyday situations in the use of a crypto wallet. Their interactions with the application, as well as their comments and suggestions, were recorded.

Thanks to the usability tests, a series of adjustments and improvements were made to the application's design before raising it to high fidelity. The results also allowed for validation of the understanding and ease of use of some of the application's functionalities and to discover new opportunities for improvement.
Flow of investment in mid-fidelity
Iteration on high fidelity and improvement.
Home and navigation
I iterated on the designs, and gradually, together with the UI kit, developed high-fidelity flows. The home screen highlights key features such as depositing money, transferring and withdrawing cash, access to the Duollar stablecoin, a blog on investments and cryptocurrencies, and the "Latest Transfers" function.
Duollar screen and their different states
The home and its different parts.
Duollars internal
These screens correspond to a crucial section within the application.

1 - The first one on the left is the Duollar internal screen that appears the first time the user enters the app. It explains what Duollar is and highlights the Duollar purchase flow with good contrast. Further down, there is information that the user can invest once it has duollars and generate returns.

2 - On the second screen, the user already has Duollars, and the investments, benefits, and links to the blog are detailed.

3 - On the third and fourth screens, the user already has Duollars and has invested them, providing information about their returns and displaying buttons for buying/selling and investing Duollars. The button for divesting is located below the graph.
Duollar internal and its different states
Duollar screen and their different states
The Outcome
The first MVP will be launched in Carhué to validate the product and gather information for future iterations. In the future, I plan to conduct surveys, measure NPS, interview business owners, and use metrics to evaluate the application's usability, adoption, and user engagement, such as Average Time Spent with Product, Active Users, Product Access, among others.

Based on business objectives and decisions, along with MVP metrics and research, the team will continue to improve the application and work on future features. Thank you for reading, and we hope you enjoyed our journey.
Duollar screen and their different states