There is much software that exists on the market today. There are the ones that are needed by most of the population and so they must be bought or downloaded. Others are already installed by the manufacturer of the devices. Software availability is easy but there could be also a problem when it would be used by a large number of population. They could be good for a certain condition but they will have a problem when the limit exceeded. Here is another look at it.
In this infographic, they presented the reasons why software should be tested first before they would be marketed largely and be used by many. There is also the problem of imitation or fake ones so there should be a safety into it. What a customer is buying should be the one that would be given as a service also. It is like saying the signal would be at a minimum of a fixed number but it gets lower than the minimum when used.
That is why there should be the testing process not just by the company itself but the users. Many products have been produced promising good and rewarding benefits but in the end, they are not different from the lower price and previous version or the ones from the competitor. That is why it is recommended to do the test also before you buy it. If there is a trial version, try it first an assess if it is better.