Andrew
I noticed that on my ipad mini it stays in landscape mode without being able to change it, while the phone stays in portrait.
I see this as a plus on the iPad as it means that more details show in tables and in live racing with two drivers since it has the space to show it.
On tablets the app will always be in landscape mode because that is their natural orientation.
The app isn't ideal when used in landscape mode on a phone because everything has to be made very tiny to be able to fit it on the screen (in regards to managing a race). It also requires a lot more scrolling overall while using the other functions of the app.
Andrei
Landscape mode
I've informed the developers to investigate this and hope to update you as I have more news regarding this.