MathHelfer is an ultra lightweight word processor help you write well formatted science article in a very light and efficient way without install huge software packages such as TEX and Office Suite.
Speare is an ultra lightweight code editor and small IDE that provides debugging environment for C, C++, Ruby, mruby, Lua, Python, PHP, Perl and Tcl. Speare code editor has very efficient code navigation and call routines tracing ability and a very simple interface that allows end user to add a new programming language code runner, parser, syntax highlighting, code formatter and debugger to it.
LittleFox is a small tool designed to help user share audio or video on social websites or make slideshows with speech audio and picture in a simple and efficient way. It was developed to conveniently synthesis subtitle with video or audio without traditional boring works.
Guard7 is a general purpose cryptography tool that was developed as the graphical frontend for the GNU Privacy Guard (GnuPG or GPG) on macOS with additional features.
Beak is an ultra small C and C++ obfuscator that used to encrypt source code of your software.
LyricsMaker is a small tool that was designed to easily make lyrics sheet for songs or generate subtitle for movies on macOS.
uFTP Server is a very simple personal FTP Server designed for macOS without any user authentication, without complex and boring configuration, but still has very high performance.
The Calendar of Yangtze River. Tungsyu「通書」 是一個為提供農曆相關資訊查詢而特意開發的工具軟體。 使用該工具可以非常方便地進行西曆和農曆的相互轉換和對照。開發該工具軟體以方便使用者進行農曆相關信息的便捷查詢。
iPowerReader is a very powerful tool designed to manage all kinds of documents on iOS devices. You can read documents, view pictures and play movies with the app. You can conveniently share your documents in your iOS devices between Mac, Windows PC, Linux and other platforms.
Mr.IQ is an utility designed for Raven's Standard IQ Test. This is the standard approach to process accurate IQ test. It can be used for serious test or only just for fun.
CCReviewer is a powerful Chinese chess machine. It was designed to record chess moves in international competitions. It's also a powerful tool to learn how to play Chinese Chess and a chess analysis tool that even give your the ability to participate in any history games.
Small Train is a very special music game designed to suitable for children and parents with IQ challenging based on simple rules. It was developed as a training software that make children happy and smarter.
Etymology English Dictionary is a very useful tool when you want to study the origin of a word or learn the way in which its meanings have been changed throughout history.
Yuet - Cantonese and Hong Kong Slang is a very useful dictionary developed to help people to learn true pronunciation of Cantonese. It can speak word, sentence or a whole paragraph with the pure Hong Kong tongue.
Yuet - Cantonese Grammar and Basic Vocabulary is a very useful self-study tool developed to help people to learn the Yale romanisation of Cantonese and basic vocabulary of Cantonese in daily life very easy and efficient. It is also a grammar handbook with the pronunciation of true native Hong Kong tongue.
Business Chinese is a very useful self-study tool developed to help people to learn the Business Chinese in an efficient way. It can speak word, sentence or a whole paragraph and has a builtin Kanji character stroke animation engine that can demonstrate how to writing each character.
Chinese Idiom Dictionary is a special dictionary app that collected almost all traditional idioms in China. Learn the salt of Chinese language and research Chinese idioms become easy with the help of the app.
Business English 900 Sentences is an utility developed to help user to learn spoken English and master the correct pronunciation. It is not only suitable for students but also suitable for businessman and professional persons.
The above macOS Apps and iOS apps were developed as useful tool or just for demonstration purpose through the years, please kindly feedback if you meet any issue or have some suggestion, thank you.