Question

Let say I want to create comic reader app where the user can download the comics as in app purchase, my question is should I go creating universal app or different app for iPhone and iPad ?
This app job is primarily just displaying image and my primary concern is about supplying the right size of images. My thought on this matter is:

Universal app:
Pro: Easier to deal with just one app rather than two
Con: The images must be in the iPad resolution (the biggest resolution), these images size is going to be wasted in iPhone who has smaller resolution.

Different iPad/iPhone app:
Pro: Can supply the right size for each platform
Con: User must purchase two separate app (and their in app purchase items) if they have both iPhone and iPad.

Since this is my first app I prefer to go with universal app so I don’t have to maintain two different apps but I welcome any input .

Answer 1

Definitely go with the universal app.

I would think about the quantity and size of the images that you are going to pull. If not huge, you throw them in a frame and then dynamically size the frame/image depending on the device, you could support all different device … here is a snip of code

CGRect imageRect = CGRectZero;
imageRect.origin = imagePoint;
imageRect.size.width  = deviceSpecificImageWidth;
imageRect.size.height = deviceSpecificImageHeight;

[yourImage drawInRect:imageRect];