Dedicated Team · U.S.

How AI and Computer Vision Revolutionized
Bill Payments in the U.S.

Founded in 2016, a U.S. fintech set out to make bill payments faster and more efficient. Luby partnered with the company to bring this vision to life — building a robust Android app powered by AI and computer vision that automated invoice reading and payments, helping the fintech secure major funding from top-tier VCs.

+550K

payments processed

100K+

Android downloads

4.7

app rating

Challenge

Scale on Android

In a market still dependent on paper invoices and mailed checks, the company's mission was to simplify payments through technology. The client turned to Luby as a consultative and technical partner to lead development and expand its reach across the U.S. fintech market.

Android at iOS parity

The iOS app had launched successfully, but half of U.S. users were on Android — leaving a massive share of the market untapped. The Android app had to be built from scratch at the same quality bar.

AI capture at scale

Shipping AI and computer vision for invoice capture that stayed accurate and fast as volume grew, rather than a demo that worked only on clean documents.

Performance and maintainability

The original Java codebase limited performance and slowed the team down. Improving technical scalability and maintainability meant rebuilding in Kotlin.

Secure payment integrations

Connecting to financial providers such as Plaid securely and quickly, so users could link bank accounts for real-time payments and transfers.

Solution

Native Android, AI, and agile delivery

A dedicated fintech squad built the Android app with AI and computer vision to read invoices and execute payments — starting in Java, then rebuilding in Kotlin for performance and stability.

01

A dedicated fintech squad

Two Android developers, one iOS developer, one QA engineer and one product owner — working with the client's product team in Scrum, joining planning and iterations to understand user needs and find improvement opportunities.

02

Native Android with AI

The Android app was built with AI and computer vision to read invoices and execute payments — starting in Java, then rebuilt in Kotlin for performance and stability.

03

Continuous evolution

As the client matured, it internalized much of product development but kept relying on Luby for specialized engineering — maintenance, test automation, releases, and integrations with financial providers.

Results

Impact

The client expanded into Android with a high-performance, AI-driven app — strengthening its position among innovative U.S. bill-payment fintechs.

+100K

Android downloads

4.7★

Average rating

+550K

Payments processed

$300M+

Valuation growth

Stack

Skills and technologies

Skills

Mobile Development (Android & iOS)QA & Automated TestingProduct OwnershipIntegration Engineering

Technologies

Kotlin (Android)Swift (iOS)JavaAppiumAI / Computer VisionPlaid API IntegrationSecure Cloud Infrastructure

Client testimonial

Testimonial

I was very pleased working with the Luby team. Everyone is professional, responsive, and flexible. They've been open to suggestions, new ways of collaborating, and always seek feedback to continuously improve the process.

CTO & Co-Founder · U.S. bill-payment fintech

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