PictoBlox is a programming and AI education platform for kids and students, developed by STEMpedia, based on Scratch. It is essentially a third-party client for Scratch, making coding fun and easy. And it is therefore seen as the ideal companion for kids taking their first steps into the world of programming, which can help them test their ideas, learn how to import coding concepts and put everything they learn into real programs.

PicoPDF (AKA: PicoPDF PDF Editor) is a small, easy-to-use and full-featured PDF editor for Windows and Mac platforms, developed by NCH Software from Australia. The first time you use it, you will seriously doubt whether it really works. Because for a PDF editor that only has a 1M+ file size and does not rely on any components such as .NET, it's harder to implement than a PDF reader.

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.

The most important thing for publishers is to have a professional and user-friendly layout design tool to make their work more efficient. There are many page layout design programs, but few of them are professional, easy-to-use or efficient. Thereinto, Affinity Publisher is a desktop publishing edge tool for Windows and Mac platforms, developed by Serif Europe from United Kingdom in 2019. Compared to the popular Adobe InDesign and QuarkXPress, it not only has everything a professional-grade desktop publishing tool should include, but it's also easier to use and runs more smoothly.

With the development of network technology, our demand for file synchronization and backup is also becoming stronger. While various web disk services provide us with convenience, they also bring a lot of restrictions and risks in terms of speed, security and privacy. There are many cloud synchronization solutions, such as Seafile and Nextcloud, which are feature-rich but bulky and difficult to deploy cloud disk programs. But if we only need to synchronize files, then a better choice is Syncthing. In comparison, it is lighter, easier to deploy and use, more secure, and especially has faster file transfer.