Lucky Patcher is a legal application. In other words, by installing it, we are not breaking any law in the criminal code. Of course, it is not a forbidden tool in any country either. However, it is important to note that some of its uses may be unethical or even illegal. You should know that with Lucky Patcher, you may violate not only the terms and conditions of use of some applications and video games, but also laws concerning intellectual property.
Lucky Patcher has many different purposes and most of them do not break any rules. For example, thanks to this modifier, you can clone certain applications to use two simultaneous applications on the same device.
However, other uses of this and similar tools are unethical, since many users use Lucky Patcher-style applications to remove advertising or avoid making in-app payments. These uses can be considered illegal. Therefore, it is impossible to find this type of software in official stores such as Google Play or App Gallery.
You must remember that like everyone else, developers, graphic designers, and other professionals in the industry live from their work. The fact that their creations are intangible does not make them less valuable. Also, their work does not end when they publish an app or a game. Rather, many of them provide support, release updates, fix bugs, and even make expansions. For online games, it is necessary to keep the servers active. Obviously, none of them are free.
In short, whether you use Lucky Patcher legitimately or illegitimately is up to you. Depending on the use you make of it, you will be using a great tool or directly stealing from someone else.