I am interested in reskinning apps for Android.Does reskinning the available source codes just add to the numerous existing similar apps?

Not necessarily, if your app can potentially serve different markets with different demographics, it may be beneficial to market to each market individually. Since app interface often serves as a marketing tool, it is important that it resonates with its target audience. This means having a different interface for the same set of functionalities depending on your audience may be prudent.

On the contrary, if you are simply trying to create variations of the app for a single market by short-cutting user testing and hoping that one of the interfaces will generate more interest, you are then over-saturating the market and may actually hurt yourself by creating unnecessary confusion for your users. I would suggest looking into what other apps your target audience is using and working off that to create a single user experience which would resonate with them.

My name is Michael and I am an Entrepreneur, Adviser and Innovator in a Small Business and Technical Solutions arena. I'd be happy to offer you additional assistance if you are interested.