Can't use Anova app on iPhone

I’m on iPhone 15 Pro, current iOS (18.2.1). Anova app will not allow setting time/temp because keypad covers up the button to save. Contacted support, they suggested a few settings changes, none of which had any effect. Their final resolution was “maybe it gets fixed in an upcoming update.”

I find it impossible to believe that the app doesn’t work on iPhone. Anybody have an idea on what I could be missing?

(Hope the image shows)

Note: none of the swipe to hide keypad gestures that work in other apps work in the Anova app.