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Case study · Fintech

All-in-one digital banking app for a traditional bank

A traditional financial institution wanted to compete with neobanks for mobile-first customers. We replaced a set of separate banking, investing and payment apps with one product that people use every day.

Industry
Fintech
Services
Application Development, AI Solutions
Platforms
iOS, Android and web
Headline result
+162% monthly active users

Context

The client and the situation.

The client is an established financial institution moving its retail business onto a modern digital platform. Its target audience was Millennials and Gen Z customers, who compare every banking app with the neobanks on their phone. Banking, investing and payments each lived in a separate legacy app with its own login and design.

Challenge

What was holding them back.

  • User growth on the legacy apps had stalled.
  • Customers had to switch between several apps to complete everyday tasks.
  • The interface looked dated next to fintech competitors.
  • Engagement was low and churn was high: customers did not see enough value to come back.

Approach

How we framed the problem.

We treated this as a product change rather than a redesign. The goal was a single app that people would open daily, not only when they needed to make a transfer. Personalized insights would give users a reason to return between transactions.

What we built

The product, module by module.

Unified banking platform

Checking and savings accounts, cards, real-time transaction tracking and a single financial overview, on mobile and web.

AI financial insights

Automatic expense categorization, spending-pattern analysis and budgeting suggestions based on each user’s history.

Investing and wealth module

Portfolio tracking for stocks, crypto and funds, with performance analytics and suggested next steps.

Personalized notifications

Spending alerts, savings prompts and market updates triggered by user behavior.

Fast everyday actions

One-tap transfer, pay and invest flows, and a shorter onboarding journey.

Results

What changed.

Results reported for the project after launch.

+162%monthly active users
+56%cross-product usage
+48%assets under management
+41%transaction volume

Technology

Stack used.

  • React
  • Next.js
  • React Native
  • Node.js
  • NestJS
  • Plaid API
  • Personal-finance recommendation models

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