After seeing how effective this approach was, I built it into a GPT so I could study the same way every day.

Instead of simply giving definitions, I designed it to explain each character from the ground up.

When you enter a Chinese character, it explains:

- which radicals it contains

- why those components create its meaning

- visually similar characters

- common words that use the character

- HSK vocabulary and example sentences

Take 休, for example.

Rather than telling you it means "to rest," the GPT explains how the combination of person (亻) and tree (木) forms the idea of resting against a tree. It then expands your understanding with words like 休息 (rest) and 午休 (lunch break).

At first, it was simply a tool I built for myself.

While living in China, I would photograph unfamiliar words and signs, analyze them with my GPT, and post what I learned on Threads as a personal study journal.

Unexpectedly, people started paying attention.

"I want to learn this way."

"Where can I use it?"

That's when I realized something important.

People weren't looking for another GPT link.

They wanted a service they could rely on anytime.

# What Started as a GPT Became an App

I wanted to validate the idea as quickly as possible.

Using GPT and Lovable, I built a simple MVP with only the essential features and launched it as a web app within a week.

Alongside the product, I continued sharing Chinese characters and vocabulary I encountered in everyday life, along with my analysis, on Threads.

Ironically, sharing real learning experiences generated far more interest than advertising ever could.

"This app looks amazing. Where can I try it?"

"Please make an Android version."

Those messages started arriving naturally.

Within a month of launching on the App Store, around 600 people were actively using the app, and valuable feedback began to accumulate.

After the iPhone release, requests for an Android version became increasingly common. Many users also asked to learn Traditional Chinese characters alongside Simplified Chinese.

That's when I realized something important.

The problem I set out to solve wasn't just my own.

It was a challenge shared by thousands of people learning Chinese.