Fing is a powerful and easy-to-use network security scanning tool for both PC and mobile platforms, claiming to be the #1 Network Scanner with wide acclaim in the world, developed by Overlook from Ireland. It can help you perform a variety of security checks on any WiFi network you can connect to, discover and identify all devices connected to your WiFi, test network speeds, troubleshoot network problems, and more.

When you use your computer to video chat with others, you may encounter awkward situations where the camera doesn't work, isn't clear enough, can't adjust its angle, or even doesn't have a camera. In such cases, you can connect and use your phone's camera for video calls via some software. Even with an old phone, its clarity is far better than almost any built-in or external HD camera. Better yet, you can also adjust its position and viewing angle at will.

The human memory is limited, especially in these days when there is so much information. So we all need to use some note taking software to help memorize, otherwise you will slowly forget a lot of things over time. But everyone has different needs and habits, so a large number of note taking tools with different characteristics have been created, such as Evernote, OneNote, Bear, ZoHo, Leanote, GitNote, SimpleNote, Boost Note, and Joplin.

Advanced computer users may install and use both Windows and Linux systems on the same computer. In this case, one of the major problems they face is file sharing between the two systems. In Linux system, you can easily access any file system under Windows by default. But on the other hand, you cannot access/display any file system under Linux in Windows system. Instead, you have to ask some third party software for help.

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.