MONSTUDIO
Apps, languages and engineering.
I build tools for everyday learning and work.
Explore the appsWhat I'm building
Things
I make.
From language learning to engineering calculations. Pick a product and take a closer look.
MonChineseMonChinese / Language / 中文
Chinese.
Closer every day.
Learn Traditional Chinese, look up vocabulary and prepare for TOCFL. MonChinese connects language learning with everyday life in Taiwan.
Explore MonChinesemonchinese.mePipeFit Pro / Tools / Engineering
Built for
pipefitters.
ASME piping calculators for pipefitters. Take the tools to the job site, even when there's no network connection.
Explore PipeFit Propipefitproapp.com
Works offline
MonGram EnglishMonGram English / Language / English
Learn English.
Start with grammar.
MonGram English is the English grammar app I develop with Flutter for Android and iOS.
Ask about MonGramHow I approach creative work.
For me, creativity is more than coming up with something new. It means observing a problem, connecting what I have learned and trying a useful way forward.
Observe
Start with what is happening.
I watch how people work, learn and use tools. Friction, repetitive tasks and unanswered questions are often the starting points for an idea.
Connect
Let different fields meet.
I bring technology together with design, education and product thinking. A perspective from another field can help me reframe a question and find a better approach.
Try and learn
Make an idea visible.
I sketch, explore layouts or build something small to see an idea more clearly. When something does not work, I adjust, record what I learned and continue instead of waiting for perfection.
Looking ahead
What I want to build next.
I want to build on the products I am making: improve each experience, create a lasting foundation and open opportunities for others. These are directions I am pursuing, not a confirmed release schedule.
Products
Make things better before making more.
I want to keep improving existing apps, complete Monhanzii and then develop the next language apps. Each product needs a clear purpose and a genuinely useful experience.
Foundations
Build for continued development.
I want to standardise data, design and documentation so the work does not start from scratch each time. What I build should be maintainable, transferable and open to collaboration.
Sharing
Turn learning into opportunity.
I want to share methods, experiments and things that did not work. Helping someone else start or take another step is also part of the value I hope to create.
Beyond the apps
Under
the surface.
AI research and systems development at Yuanpei University of Medical Technology (元培醫事科技大學), where I study.

Answers with sources.
Researching a RAG system that retrieves documents and generates answers with citations.
Deployed on the university's research equipment.
LINE / @802udfzj
Connected through LINE.
The LINE account @802udfzj is part of the systems I develop.
followers on the LINE account @802udfzj
LINE Official Account statistics for the MonStudio OA, recorded in the operations log · 2026-09-08
Every number comes with its source and measurement date. No source, no claim.
How I build apps.
From a real problem to a product that can keep evolving. I break the work into clear steps, revisit decisions and adjust along the way.
01 / Understand
Does someone really need this?
I start with people, use cases and practical constraints. I define what the app should help them do before choosing technology.
02 / Prepare data
Content before features.
For language apps, I prepare dictionaries, examples and learning paths, check sources and licences, and review samples. Unverified material needs to be identified.
03 / Design
See the direction before building.
I explore layouts, colours and artwork, then agree on a shared design system. This helps clarify the lookup, learning and review flows.
04 / Build
Make one flow work, then expand.
I split products into smaller pieces, connect data to the interface and keep reusable structure. Offline learning is central to the new app family.
05 / Verify
Running is not the same as finished.
I check code, builds, content and interfaces on devices. Monhanzii is being tested on iPhone; anything not yet checked is not treated as passed.
06 / Improve
Make the next iteration better.
I document design decisions, changes and outstanding work. I distinguish prototypes from releases so the product can remain maintainable.
Big change begins with small ideas.
I believe something meaningful does not have to begin with a grand plan. Sometimes it starts with a question, a small frustration and the decision to make it better.
Notice
A small question can open a new direction.
Why is this difficult? Could it be simpler? I start with questions close to everyday life rather than trying to find a huge idea from the outset.
Begin
A small experiment goes beyond thinking.
A sketch, a task flow or a simple tool makes an idea concrete. I try something manageable to learn what to keep and what needs to change.
Persist
Small improvements can make a difference.
I want to keep observing, learning and refining. Not every idea becomes a product, but what I learn from each attempt can make the next step better.
The person behind MonStudio
MẠNH
HÙNG.
One person. From idea to app.
I'm Mạnh Hùng, based in Hsinchu, Taiwan. MonStudio brings together the things I build: language-learning apps, engineering tools and AI research.
The next conversation
Something
on your mind?
An app, a technical question, or just a hello. You're welcome to write to me.
[email protected]










