Skype is currently the world's most popular free HD instant messaging software (and VoIP) for all kinds of desktop and mobile platforms. Low system resource requirement, high-quality voice communication and high stability have won its hundreds of millions of users around the world. After acquired by Microsoft in 2011, it became an independent department of Microsoft. And in 2013, if finally replaced Microsoft's own instant messaging tool MSN. In 2014, it released an embedded web version.

As the name suggests, Zemana AntiMalware is a small, fast and powerful malware/adware/ransomware/spyware scanner & remover from Turkey. It is designed to assist antivirus (compatible with all existing antivirus software), in order to make your computer more secure.

AutoCAD is undoubtedly the most popular and powerful CAD modeling software. But as a commercial software, it is really, really expensive. FreeCAD is a free, open-source, cross-platform and general-purpose 3D CAx (CAD, CAM, CAE), PLM modeling tool specially designed for home user/hobbyist, experienced CAD user, programmer or educator.

Navicat Premium is an award-winning universal database managing tool that is enough to meet professional database developers' all requirements. In particular, for newcomers to database servers, it is also quite easy to learn and use.

There is no doubt that occasional rearrangement of home furnishings or update of furniture can bring our monotonous life a lot of freshness and fun. However, the traditional design method using drawings or large industry software (such as AutoCAD, SketchUp) is obviously too much troublesome. In this case, we need to turn to specialized interior design software for help.