The essence of any VPN (Virtual Private Network) is to encrypt the Internet connection. Connecting to the Internet through a VPN, we can protect our online privacy, hide our online activities, and enjoy the safe & anonymous web surfing worldwide. Avast SecureLine VPN (Avast SecureLine or SecureLine VPN for short) is a fast, secure and cross-platform VPN software developed by Avast Software from Czech Republic. It's subscription based and available for Windows, Mac, Android, iOS platforms.

NextPVR is a simple, easy-to-use, free and cross-platform personal video recording (PVR) software, as well as a media center type of program. You can utilize it to watch the live television programs, play DVD movies, music, and browse photos that are stored on other devices in your home network. Or, you can use NextPVR to record your favorite TV shows for later reviewing.

Natura Sound Therapy is a parameterized sound simulation player software that contains all kinds of natural sounds (such as waves, streams, thunder and lightning, forest twilight, and so on mysterious sounds from the nature). It can let the physically and mentally exhausted people living in a noisy city feel the purest natural sound on a computer, and give them some spiritual comfort.

ElectroDroid is a very popular Android application for learning various electronic devices in a circuit, developed by Demetrio Iero from Italy. It is very professional and powerful, provides you with a variety of circuit related information query and calculation services, and comes with a comprehensive database on electronic components. Therefore, it has been regarded as one of the essential tools for employees in electronics related industries.

VLC media player (VLC for short = abbreviation of VideoLAN Client) is a free, open-source and cross-platform multimedia player developed by VideoLAN from France. VideoLAN was originally a project plan of the students at École Centrale Paris (ECP) started in 2001, with members from all over the world. It originally consisted of VideoLAN Client (VLC) and VideoLAN Server (VLS) these two programs. However, because most of the VLS functionalities had been integrated into VLC, they eventually renamed this project VLC media player.