I want to submit an app that uses healthkit and that doesn't use icloud (as required by apple). the ipad doesn't support such an app. i have set target device family as iphone is iphone target build settings. my app was rejected for some issue but i learnt from the notes in the resolution center that reviewer was testing it on an ipad. how can i ensure (like in case of whatsapp) that the app doesn't appear on the ipad app store and thus cannot be installed there?
HealthKit related app... make iPhone only
All iPhone apps work on iPad via 1x/2x emulation mode. Review tests them in that mode to see if they look ok. There is no exception to that requirement.
Do your own testing, with the goal that the app appears generally ok in that mode, not that it perform as a native iPad app.