Why is the altitude slider and the date slider available at the same time (like on the web app) may be I have a setting wrong - but it seem the altitude slider is in the setting menu to the right - when you select that the date slider goes away. I really like the web site set up of both sliders available at the same time.
Why the altitude slider and the time slider are not on your iPad screen at same time?
Probably because this app is basically a phone app, so it is designed for a small screen which prevents to have both sliders at same time.
And frankly what is the advantage to have both at same time? Generally we adjust the altitude slider for a particular level and then... the time slider,