Here is something telling about the process used for iPhone App development. iPhone Apps are very popularly used worldwide. If you want to get an iPhone app developed then you need to follow a few steps. Very firstly you need to get your requirements behind this app development whether you want this app for commercial purpose or any educational purpose or anything else. After having requirement analysis you need to explain it to your developer so that they can give you a rough sketch of your iPhone app. You need to give your requirement for theme, designing, functionality, service area of app etc to your developer.
Also if you are not clear with design and theme of iPhone App development then they can also offer you some good works as they are professional and have a good taste according to requirement. If you think this sketch is perfect representation of your app then you can say “sign off” to your developer to get this app developed. Before starting the development of app they will ask you for releasing the payment. Once you will clear the payment they will get it delivered to you within said time duration. You have to buy a few 3rd party services, if needed, in your app. After final demonstration if you are expecting some changes in the current form of app then you can ask for it. Else it you can make it online.