First, the APP carries out patent infringement.
Many apps get the source code of genuine apps without the permission of the developers. In order to achieve their own production and business purposes, they steal other people's patents and make illegal profits. Many softwares will cover other people's inventions and make minor changes to other people's inventions, so they are said to have been invented by themselves. For developers, this situation is an infringement of their own patents, and many times patent infringement is not easy to find, which is why many pirated apps can survive.
Second, APP infringes on users' privacy.
Many users need to be granted permissions when using software functions, but these permissions are to access microphones, cameras or address books. It has no effect on the actual function of the software. Software performs this operation to illegally gain user privacy and sell it. Many users will receive harassing calls after downloading such software. For users, such behavior will affect their own experience, which also infringes on their rights and interests to a great extent.
Third, APP infringes other people's trademarks.
Trademarks bear the reputation of enterprises, and many users look at trademarks to download software. However, many developers will use well-known trademarks, which will confuse users to a great extent, and it is easy to sell fake and shoddy products after the appearance of false trademarks. If users don't download such software differently, it will cause losses to their own property. Trademark is the symbol of enterprises, and trademark infringement will also cause huge economic losses to enterprises, but for developers, it can make illegal profits.