Creating an user interface of a smartphone is extremely hard because the screen size is very limited. If you need to compress a lot of information in just a few inches then you need to make sure that the usability is not affected in any way. When you are planning an user interface of, let’s say an iPhone app you must be aware that on a touchscreen, everything is different: the users are looking for information in a different manner, the navigation is mostly from top to bottom, the focus is on images rather than text and the buttons must be extremely ergonomically.
On a smartphone display, the best user interface is the one with clear elements because this helps the information to be efficiently organized. In order to achieve a clean UI, the best approach is to use a sharp design because this will give a sense of minimalism and order. Using straight lines, 90 degrees corners and a good combination of colors means will greatly enhance the usability because it will make the user feel that he’s looking at a bigger screen.
If you combine this approach with a flat design, a good typography and a carefully designed set of buttons then you will have a happy user and probably a popular application. A good interactions on a smartphone device means details which guides the user and helps him to focus on the information displayed there. Sharp lines means a compact design and also an easier way to scroll through because it requires fewer hand gestures.
Therefore if you want to start an app design and you are looking for some examples, or you just want to see some cool interfaces then check out the gallery below. These 20 absolutely gorgeous examples with make you understand why it’s better to use the sharp line approach.