Project Luna

Designing a merchant-centric mobile finance app for the UK market

About the project

Project Luna is a B2C fintech project built around the idea of merging financial data and retail loyalty into a single experience that helps users better understand their relationship with each store.

The product is a consumer-facing mobile app that aggregates transactions from all linked bank accounts and regroups them by merchant, turning a fragmented multi-bank statement into a unified view of the user’s spending activity across retailers.

Industry
Finance
Services
Mobile App Design
Merchant balance and transaction history screen of the Project Luna app designed by Halo Lab

Challenge

Since the client aimed to enter the UK market, they needed a product that could cut through a crowded fintech landscape. With a concept in place, they came to us to shape it into a market-ready mobile experience that could resonate with financially savvy users and earn trust.

Our process

In fintech, users abandon products the moment a transaction feels unclear. Knowing this, we prioritized transparency and familiarity to shape a product experience users could understand at a glance, structuring it end-to-end into a dev-ready solution.

{{dropdowns-1}}

__wf_reserved_inherit

Results

  • Full UX system covering core user journeys and edge cases gave the product a solid foundation for reliable behavior at scale
  • Refined hierarchy and navigation logic improved information clarity, helping users understand their spending instantly
  • High-fidelity interface prepared the product for direct implementation
  • Complete design system supported Project Luna’s consistent scaling throughout the build phase and beyond
  • Fully clickable prototype enabled early-stage validation and testing, giving the client a reviewable artifact before development began

Our approach

Strong results start with open dialogue. At every stage, we work closely with the client’s team, running workshops, gathering feedback, and refining ideas through multiple iterations. If your product needs the same level of care, contact us — and we’ll help turn complexity into an experience people can understand, trust, and use with confidence.

{{approach}}

Ready to discuss your project with us?

Let’s talk about how we can design, build, and grow a product that puts you in the top 1%
GET IN TOUCH

01 Discovery & research

We analyzed key competitors across banking apps, loyalty platforms, and finance trackers to map structural gaps in how multi-account users track merchant spending. The findings helped define the product’s core positioning and target audience.

Deliverables

  • Eight competitors analyzed
  • Market gap map
  • Customer profiling

02 UX/UI design

We built the flow around a messenger-like interaction model, making complex transactions feel instantly familiar. Green accents on light backgrounds kept the interface clear, while charts made spending and cashback data easy to read at a glance.

Deliverables

  • Wireframes & user flows
  • Over fifty screens designed
  • Component library

03 Interactive prototype

Once all screens were finalized, we assembled a navigable prototype connecting every flow into a single reviewable experience. It enabled product exploration and served as the primary artifact for investor presentations.

Deliverables

  • Clickable prototype
  • Presentation-ready demo

04 Design system & handoff

To ensure consistent implementation, we organized reusable components, styles, and interaction patterns into a single UI kit. The project concluded with a documented handoff package prepared for smooth developer execution and future scaling.

Deliverables

  • UI kit
  • Handoff package

Team

  • 1 PM
  • 2 UI/UX Designers

Technologies

Figma
Miro