What about feature X?
Next3Trains is a hobby project I do in my spare time. As such I’m going to try to avoid implementing too much more in the app, and concentrate on working on bug fixes and keeping up with changes in iOS (like the liquid glass changes in iOS 26). The design is also deliberately limited in what it tries to do (present the user high level details on their train status, fast) - there are a number of more fully featured apps released by both the trains companies and other developers, and this app is not intended to compete with them.
Having said that, if you do have a suggestion that would enhance the existing app, please feel free to provide feedback via the Contact form.