Product engineering
From the first line of code to a product architecture built for reliable performance and continuous iteration.
Our vision
Connecting bold ideas with a billion global users.
We build intuitive AI, utility and productivity products for modern life. BillionX combines product thinking, data intelligence, engineering and creative strategy to turn ambitious ideas into useful experiences.
01Useful by designEvery feature begins with a real human need.
02Built to learnData and iteration guide better product decisions.
03Ready to travelCreated for distribution beyond one market.
01
ProductHuman needs become focused, useful digital products.
Featured product
Imagine a room. See it transformed.
HomeGPT AI Interior helps people explore new possibilities for their living spaces through a mobile lens — making interior inspiration faster, clearer and more personal.
Discover HomeGPTInput mappedRoom geometry detected
AI directionReady to explore
Full product lifecycle
One team from first idea to global release.
BillionX brings engineering, intelligence, design and publishing into one operating loop. That continuity lets every product move with more clarity and learn faster.
Data & AI
Intelligence applied where it makes the experience more useful, with feedback guiding each product decision.
Global publishing
Creative strategy, distribution and optimization designed to help digital products reach users across markets.
The people behind the product
Built by people who care about the entire lifecycle.
Our developers, data scientists and creative strategists work as one product team — aligning technical performance with a clear user experience and a global publishing mindset.
01
DevelopersEngineering products for speed, quality and scale.
02
Data scientistsTurning signals into better product choices.
03
Creative strategistsGiving each product a clear story and purpose.
04
Publishing specialistsPreparing products to meet a global audience.
Start a conversation
Have an idea worth building?
Tell us what you are working on. We will explore the product, technology and publishing possibilities with you.
18 Queen's Road Central, Central, Hong Kong