UltraSnap is a screen capture and vector editor tool for Windows, developed by Mediachance from Canada. It was originally created for internal purposes to speed up the process of creating multimedia presentations, tutorials, manuals and website pages, and simplify the process of sending digital photos by email. Since this tool exceeded all their expectations, they decided to make it available to the public.

Wing Helper is currently the most advanced 3D CAD program for designing RC plan models on Windows, Mac and Linux platforms. It is specially made for ambitioned RC modelers, who are beyond building models according to ready made plans, and who want to start designing, building and flying their own creations.

GDevelop is a free, open-source and cross-platform 2D game engine designed to be used by everyone, originally created by Florian Rival (4ian) from United Kingdom in 2008, using C++ and JavaScript. We can use it to create any type of 2D game for Windows, Mac, Linux, iOS and Android platforms, as well as HTML5 Web browsers, Steam platform and Universal Windows Platform.

Clickteam Fusion (formerly called Multimedia Fusion Developer) is a classic, powerful and extensible 2D/3D game making engine, developed by Clickteam from France in 1995. It is easy to understand and use, allowing developers to create all kinds of cross-platform games without writing any code.

When people think of "an edge tool for academic writing", LaTeX may be the first software that comes to their mind. Indeed, the mathematical formulas written in and academic articles typeset by LaTeX are very beautiful. But an ordinary user who has used LaTeX a few times could hardly like it, because its syntax is a markup language that is essentially designed for the machine, not for human to read - just as the HTML source code is designed for the browser, not directly for Internet surfers.