3 issues that I noticed with InputFields:
1. the numeric keyboard property is being ignored.
2. on mobile, if you tap on an InputField, the keyboard appears, you then press the button to close the keyboard, the keyboard closes as it should, BUT, once you scroll anywhere or tap on something that is not even clickable the keyboard appears again.
3. when you input the first char into the field it's height changes a little bit, this does not happen in the Android app version.
you can see it here
https://mobilekosmos.github.io/hear-calc/