PreviSat (may be the successor of TLE Analyser) is a free, open-source and multi-functional satellite real-time tracking software for Windows, Mac and Linux platforms, developed by astropedia from France. By analyzing the Two-Line Element (TLE) data published and updated regularly by United States Space Surveillance Network (SSN), it can achieve accurate prediction and tracking of satellite orbit, and simultaneously analyze the TLE parameters of hundreds of in-orbit targets.

In the early 1990s, 2D arcade racer video games had great success on both arcade consoles and 16-bit home consoles, delivering a stunning integrated gaming experience. Until the mid to late '90s, it was surpassed by the full 3D GT Racing, Ridge Racer, Need for Speed, and so forth series. Nowadays, the graphics of racing games have evolved to resemble the real world, but the obvious side effect of the excessive pursuit of realism is that the game controls become more complex, thus losing the fun of the game itself. As a result, many gamers miss the simple, exciting, relaxing racing experience when they could easily compete with friends.

In daily work and life, we occasionally want to pick out some words/paragraphs seen in books, magazines, documents and other visible media mediums and save them on computer or mobile phone for subsequent editing, collection, tidying, sharing and other purposes. At this point, we can use ABBYY TextGrabber to easily, quickly and accurately capture, extract and save almost any form of text content from an image.

The installation of Windows, Linux, or Mac operating system has been automated and foolproof for a long time, with no technical difficulty. But if you want to install and use multiple systems at the same time, whether it's a combination of multiple different versions of Windows or Windows + Linux + Mac (each has a different boot method), the hardest part is figuring out their installation order and adjusting the boot menu. This can be cumbersome and experience required even for advanced computer users.

Insomnia - in the past, people who suffered from this condition were mostly affected by work, life and other bad experiences. Now, smartphone + fast and convenient mobile Internet has caused more and more people to suffer from severe insomnia from lying in bed fiddling with their phones. AppNee's method is simple and effective, requiring no drugs or visits to the hospital. Instead, you just need to do what you least want to do on your phone after lying in bed, like reading e-books on math, economics, etc. If you have a computer at hand, try Virtual Hypnotist.