Custom Software Studio · Dublin, Ireland
Your business deserves
more than a template.
We design and build custom-coded websites, web applications and digital tools that help businesses stand out, serve customers and turn ideas into working products.
Selected Work
Real projects. Real code.
From interactive applications to specialist business websites, here's a selection of what we've built.
View Project ↗CUSTOM WEB APPLICATION
HeiyuBudget
A voice-powered finance application making everyday income and expense tracking simpler.
View Project ↗AI & INTERACTIVE SOFTWARE
HeiyuQuiz
An interactive quiz platform featuring AI-generated questions, timed challenges and competitive leaderboards.
View Project ↗COMMERCIAL WEBSITE
Heiyu Build
A custom business website showcasing specialist groundworks and construction services.
View Project ↗COMMERCIAL WEBSITE
Dublin Radon Services
A specialist website helping Irish property owners understand radon testing and remediation.
View Project ↗COMMUNITY PLATFORM
Trinity of Faith
A digital home providing parish information, community updates and access to services.
Always Building.
Independent experiments, games and new digital ideas. More projects are on their way.
Coming SoonWhat We Do
Built around your business. Not a template.
Whether you need a business website or a custom software product, we build around what you actually need.
Custom Business Websites
Stand out with a professionally designed website built around your business, your customers and your goals.
Web Applications & SaaS
From customer portals to subscription products, we create software that solves real business problems.
AI & Business Automation
Practical AI features and connected tools that help reduce repetitive work and improve customer experiences.
The Heiyu Digital Difference
No bloated themes.
No unnecessary plugins.
Just purposeful code.
Built for performance
Lightweight, carefully written code helps your pages load quickly and gives visitors a smoother experience.
Fewer moving parts
Avoid the constant plugin and theme maintenance that comes with many off-the-shelf website setups.
Made to fit your needs
Your website should reflect your business, not the limitations of a premade design.
Let's Talk About Your Project
Have an idea? Let's build it.
Need a new website, a better online presence or a custom application? Tell us what you're planning and we'll discuss the next steps.
Request a Free Quote ↗