Safe. Popular Science China is a brand-new brand created by China Association for Science and Technology to further promote the information construction of popular science. The aim is to take the construction of popular science content as the core, fully rely on the existing communication channels and platforms, deeply integrate the construction of popular science information with traditional popular science, accurately evaluate projects with public attention as the standard, and improve the service level of national popular science companies. The software has no spam and false advertisements, and does not involve personal privacy. It is scientific, timely, interesting and safe.