[Christian]

Issue with that is that making the app universal does neither reduce the development cost for both apps nor does it change the financial calculations of OG. Simply put they need to make a certain amount of money to cover costs and invest, usually plus some reserves. "Costs" includes that all the fine people working there want to make decent money for their living.

That means that if they would now merge the apps for iPad and iPhone they would sell less apps and hence would have to adjust price to still meet their quota (that is under the premise that there are people using both the iPhone and iPad version, otherwise it would be less relevant).
Would you be willing to pay 60 bucks for a version working on both your devices insted of 30 plus 40 (or how much it actually is)?