MyPhoneExplorer is a very practical, completely free and portable Sony Ericsson and Android mobile phones management software, developed by FJ Software from Germany. It allows you to control and use your smart phone from a PC (Windows or Linux), view and manage apps, and learn all kinds of information in your phone. Once the connection is established, you can perform various tasks related to personal information management on the computer.

If you are a music collector, then a good music management software is essential. MusicBee is an intelligent and easy-to-use music collection management software developed by Steven Mayall (from Russia) with the BASS audio library in 2008. Its functions are very comprehensive and powerful, and the program comes with a very strong capability to organize and manage a large music library.

Operating system will produce a lot of junk files and use trace files after a long time of use, thus affecting the running speed of system and making it be prone to expose user privacy, so it is necessary to timely clean them up. In the field of system garbage cleaning, you may first think of the celebrated CCleaner, but in fact there is another system garbage cleaning edge tool that is not inferior in any respect - Wise Disk Cleaner. It's an entirely free alternative for CCleaner, developed by WiseCleaner (智慧清理) from China.

VRChat is a very cool, free massively multiplayer online virtual reality social platform application (not just a game) developed by Graham Gaylor and Jesse Joudrey using Unity in 2014. If you think of VRChat as a pure game, then its gameplay is somewhat similar to that of Second Life and Habbo. In this VR world, every player can create his/her favorite world, room and character, incarnate into any figure he/she likes, and freely communicate and interact with strangers all over the world!

Because the supporting degree for audio/video formats varies from media device to media device, it is not possible for the same video to be played properly on every device. And with the advent of more and more video formats, it's harder to get a piece of hardware that's compatible with all media file types on the market. Even on a computer, it is impossible to install decoders for all media formats. In this case, multimedia format conversion tools come in handy.