Downie is an excellent and popular general-purpose video download tool for Mac platform, developed by Charlie Monroe Software from China. It supports a large number of video sites, has an extremely simple interface, and does not provide many options to confuse users - it just simply do its video download job. If you have a strong need for video downloading, especially a loyal Mac user, then Downie can be an edge tool for you to download videos.

All Android application stores use Package Name as the unique identification of an application. In order to avoid conflicts with other applications with duplicate package names, the package name must be unique and cannot be changed (otherwise it will be treated as a brand new application, and users of old versions will not be able to receive upgrade reminders from the application store). That is, a package name represents an application, and any two applications are not allowed to use the same package name. The package name is mainly used by the system to identify the application, and can not be seen by end users by default.

Musify is an excellent music batch download and conversion tool, developed by iTubeGo from Hong Kong in China. It can not only help users quickly download/extract high quality music from over 1000 online music/video sharing sites for offline listening, but also convert audio/video to various common audio formats for playback on different devices, so users don't need to bother about transcoding. Moreover, the conversion process does not lose the original audio quality.

Google Pinyin (AKA: Google Pinyin IME, 谷歌拼音输入法, Google拼音输入法) is an excellent Chinese and English input method program for Windows and Android platforms, developed by Google China Labs in 2007. Google released Google Pinyin V2.0 with a lot of new features and improvements in 2008; released its Android version in 2009; and released Google Pinyin V3.0 with English writing assistant feature in 2011. Although its development stopped long ago and the product page was finally removed in 2019, even today (more than 10 years later), it is still the #1 app of all its kind.

Visual Paradigm is a powerful, cross-platform, convenient and intuitive UML modeling and CASE tool from Hong Kong in China. It was converged by Visual Paradigm for UML (VP-UML for short), Agilian and Logizian these three products in 2014, with multiple editions for Windows, Mac and Linux platforms. This one-stop software solution is far superior to the conventional Model-Code-Deploy development process.