Currently you can only use the Mobile App on Apple devices. We are working on offering SPITCH on Apple devices for Mobile-Web as well.
In SPITCH, you can decide every matchday with which team and on which pitches you want to participate. This means that you have the opportunity to set up a new team and play on different pitches every match day. Of course, you can also continue to play with your existing team. In this case, pay attention to your manager points, which could change due to changed market values.