We’ve mentioned single-screen apps as being relatively cheap to develop but that is not always the case. Take the FIDO app we’ve worked on as an instance - there are only several screens and a limited number of features, but all of them require fast, complex, and secure data processing. Such applications might look small, but they pack much more than meets the eye. FIDO app uses Big Data to collect, parse, and analyze data from hundreds and thousands of clients simultaneously, and it takes time and effort to make sure it functions the way it was intended.
On the opposite side of the spectrum, there are applications that contain lots of screens. Take the SAM Learning educational service we developed a couple of years back - it has hundreds upon hundreds of screens of learning material, but most of these screens contain similar features and are only different in terms of content. Nonetheless, the number of screens is often used as an indicator of the project’s size.
The size of the software is commonly determined by the number of screens with small apps being under 15 screens, medium-size apps under 40 screens, and large-size software going anywhere from 40 screens and above that. The approximate prices for each type are as follows:
It is natural that the more screens your app will have, the more software development would cost, and you have to keep that in mind whenever you approach the new project. Of course, the complexity of the screens will play its role too, and the more complex your application’s features are, the more time it would take for the developers to implement those.