You are probably familiar with StarRail in some way or the other. It's a railway system of sorts that is not really free of charge or for free at all. The idea is that the company wants to give you the opportunity to download the application for free, but they are offering this free download for a limited period of time. They do this so that they can find out what the community wants, and then they will be able to make the next big change so that everyone is happy. This can only be a good thing for the future of this software.
In the end, the download does not cost you anything. They are trying to make sure that their customers like the free trial so they are willing to pay the full price. If you want to download the application for free, just search for it on the internet. In fact, you can download it to your computer and play with it on your Mac at home and try it out. The application has a lot of great features and can make your trip even more enjoyable, as well as help you save money on your ticket. If you do want to download it for free, you can go to the website and just get it there.