A keyboard is used to enter very private data like passwords. Due to this a keyboard must not request a connection to the internet.
Only by this it is possible to ensure that no data can be send by the device! Also contacts or similar private data must not be accessed by the keyboard.
This means: no rights for the app!
The keyboard is the most used app on a mobile device. Therefore ist must be perfectly adjustable to the needs of the user!
The position of the keys, it dimensions, labels, colors and borders do define the look. By the assignment of a powerfull function the user can enter a text very fast.
This means: all options to you!
As the screen size is very limited, entering a text is not easy.
The present functions and their smart accessability allow the usage even in hard conditions (walk with mobile device in one hand and a coffee in the other) or for handicaped people. A magnifier shows the entered letters in a hughe way and allows to manipulate them directly. If it is not obvious which key was pressed, a resized view of the keys is shown.
A keyboard must react on a keypress very fast - otherwise errors are the logical consequence.
This app does not use the functions to implement a keyboard that are provided by the system, but it shows all keys in a graphic. If a key is touched, its assigned function is send to the editor. Its very fast due to this simplified structure.