Product engineering, end to end.
Eusebeia Studios is the consulting arm of Eusebeia. One small team covers product, design and engineering — taking apps and AI agents from idea through to launch.
Start a conversationCharity donation app and payment processing backend
Overview
A Sydney startup had outsourced a charity donations app offshore and was left with security and stability issues. We rebuilt the app for wider usage on iOS and Android.
Outcome
The 6 month rebuild handled high transaction volumes during fundraising campaigns like the Melbourne Cup, and ran nearly three times as fast as the previous app with the polish of a top ranking app.
Natural Scientific Calculator
Overview
A scientific calculator with a natural display — showing maths equations the way you would write them on paper.
Outcome
In a market of thousands of calculator apps, it stood out and gained over 1 million downloads organically on a $150 marketing budget.
Backend optimisation for an outdoor billboards analytics company
Overview
An analytics platform verifying billboard ad spend was overloaded with billions of events per day and needed lower costs and better performance.
Outcome
A two-person team vetted the backend — schema structure, messaging queues, database and backup providers — saving an estimated $80,000 per year in server bills.
Speech Agent — AI Biographer
Overview
An app where users are interviewed by an AI biographer capable of holding a conversation for over an hour, generating an autobiography that can be published as a book.
Outcome
Several technical workarounds produced a biographer that naturally asks about a person's entire life, delving into detail and segueing with convincing small talk.
Contact
Tell us what you’re building: kongwei@eusaybia.com