I started to develop an iPhone App for a client but the binary not yet submitted to Apple. My client asked me whether they can run the iPhone App also on the iPad. I am not sure what to answer. I am away from home and cannot even check how this all works in XCode. I wonder whether I have to submit two binaries two Apple – one for iPhone and one for iPad – or how this all works? If somebody with experience can explain me. Basically I need to figure out how much more effort I have to consider if it is only making the app work on the iPad. I do not mean the effort to redesign the whole app being a real “iPad app”. Just to make it work and when somebody downloads the app and it can be for an iPhone and for an iPad and it does not matter.
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An iPhone app can run on an iPad anyway, but that’s not a great experience (get your iPad out, download a free iPhone app, and try it). You could make a ‘universal’ application that works properly on both types of hardware, most of the code you’ve written will already work properly on the iPad side but you’ll need new views and view controllers (and graphics).