You get an editor app, and you start typing. There are apps which specialise in writing novels: they have special sections for writing character descriptions,

You get an editor app, and you start typing. There are apps which specialise in writing novels: they have special sections for writing character descriptions, plot ideas, etc. A PC is convenient if you have the time to sit down in front of it. An iPad is great when you want to write on the bus or train, where a laptop is inconvenient and a PC is flat out impossible.