MultiMoney

Context & Problem Statement

MultiMoney is a digital financial services company operating across Central America, offering credit, savings, and investment products through a mobile-first platform. Its app serves as the primary touchpoint for users to manage their finances, making clarity, trust, and ease of use essential to the product’s success.

Although MultiMoney had strong functionality and growing adoption, the interface no longer supported the complexity of its offerings. The UI suffered from inconsistent visual patterns, an outdated UI, weak hierarchy, and interaction friction in critical flows, making it harder for users to understand their financial information and complete key tasks efficiently.

My Role & Contribution

I joined MultiMoney as a Senior UI Designer in January 2022 for an 8-month project focused on the complete revamp of their mobile app. During this time, I worked as part of a multidisciplinary team that included Senior UX Designers, Junior UI Designers, and iOS and Android Engineers to deliver a full redesign for both OS.

My role combined design leadership and hands-on execution, with responsibilities that included:

• UI Team Lead: led and collaborated with Junior UI Designers, identifying individual strengths and strategically allocating work to maximize team efficiency and overall project quality.

• Native Design System: established the foundations of a native Design System for both iOS and Android, adhering to Apple’s Human Interface Guidelines and Google’s Material Design best practices to ensure platform consistency, scalability, and accessibility.

• High-fidelity design & prototyping: delivered 500+ high-fidelity screens covering complex financial workflows, country-specific variants, and edge cases, along with interactive prototypes used to document and validate interaction patterns.

• Handoff & cross-functional collaboration: partnered closely with Senior UX Desginers, iOS and Android engineers, maintaining continuous communication to ensure strong alignment between design intent and implementation throughout development.

Design Audit & Key Findings

Working closely with the product team, we evaluated the existing MultiMoney app to understand its biggest usability and perception issues. While current users valued MultiMoney’s offering as a modern alternative to traditional banking—providing access to credit, savings, and a crypto wallet—they consistently described the app as outdated and difficult to navigate.

Potential new users faced a different barrier: lack of trust. The app’s visual language and online presence did not reflect the expectations users have of a financial product, making it harder for the brand to feel credible and transparent. Internally, the absence of clear design foundations or a component library led to inconsistent UI patterns and increased the time and effort required to design and scale new features.

These issues became more critical as MultiMoney prepared to expand into new Latin American markets and target a younger audience. To compete effectively in an increasingly crowded fintech space, the product needed a clearer, more modern, and more cohesive brand presence.

Brand Alignment & Visual Direction

Since the core challenges were closely tied to brand perception and trust, we partnered with the Marketing team to redefine MultiMoney’s brand personality and visual direction. This work focused on:

• Competitive benchmarking: analyzing how direct and indirect fintech competitors communicated trust, simplicity, and differentiation thorugh their apps.

• Brand style exploration: defining a modern, credible, and scalable visual direction for the mobile app that aligned with the company’s rebranding goals and long-term growth strategy.

Results & Outcomes

With clear alignment across product, design, and marketing—and a defined visual direction in place—we shifted focus from discovery to execution. The goal was not only to modernize the interface, but to create a scalable, native-first foundation that could support future growth, new markets, and increasing product complexity. My contributions focused on three key deliverables: Design System, Interaction Design, and Documentation.

Native Design System (iOS & Android)

To address inconsistency and scalability issues, I led the creation of a native-first Design System tailored specifically for iOS and Android. Rather than forcing a single visual language across platforms, the system respected Human Interface Guidelines and Material Design standards, ensuring each platform felt familiar and intuitive to users.

The system included:

• Core design foundations (color, typography, spacing, elevation)

• Platform-specific components and interaction patterns

• Reusable UI components that supported a multi-product (credits, savings, and crypto) platform

Impact

• Significantly reduced visual and interaction inconsistencies across the app

• Accelerated design and development of new features

• Established a scalable foundation to support multi-country and product expansion

Interaction Design & Prototyping

Given the complexity and sensitivity of financial workflows, interaction design played a critical role in improving usability and trust. I designed and delivered high-fidelity, native prototypes that closely mirrored real app behavior, allowing teams to validate interactions early and align on expected outcomes.

This work focused on:

• Clear interaction patterns for core financial actions (payments, credit management, savings)

• Micro-interactions that reinforced system feedback and user confidence

• Error handling, loading states, and edge cases

• Platform-accurate gestures and transitions

Impact

• Reduced ambiguity during engineering handoff

• Enabled faster stakeholder alignment and decision-making

• Lowered implementation risk by validating interactions before development

UX Flows & Variants Documentation

MultiMoney’s expansion into multiple countries—while already operating as a multi-product app (credit, savings, and crypto)—introduced significant complexity across user flows, regulatory requirements, and content variants. To manage this, I created clear UX flow documentation that captured both primary paths and edge cases across markets.

This documentation included:

• End-to-end user flows for critical journeys

• Country-specific variants and conditional logic

• States, error scenarios, and alternative paths

• Clear annotations to support engineering and QA

Impact

• Improved cross-functional understanding of complex workflows

• Reduced rework caused by missing or unclear requirements

• Enabled the product to scale confidently across regions and use cases

Reflection

This project reinforced the importance of treating UI not as a surface-level polish, but as a strategic layer that directly impacts trust, scalability, and business growth—especially in fintech. Leading the mobile revamp challenged me to balance brand expression with platform conventions, manage complexity across markets, and collaborate deeply across product, engineering, and marketing. The foundations established during this project continue to support MultiMoney’s growth, while shaping how I approach design systems, native experiences, and cross-functional leadership in future work.

View live product here: https://multimoney.com/cr