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Abstract
Handheld mobile applications (apps) are growing massively in both function and mobility. This is due to the increasing variety of mobile operating systems (Android, iOS, RIM, Windows ...etc.), technological advancement in the handheld computing power and the fact that these apps are mobile and can be used literally everywhere. With the growing need, one has to have more live-design tools offering on the spot solutions that meet more of the instant (Rapid Prototyping) technologies growing e.g. 3D Printing, Real-Time Construction/Maintenance...etc. Scientific communities cannot be disengaged from the above stated facts there had to be a research about what are the available offered engineering solid computer-aided- design apps that can offer the same level of details and design capabilities as the ones offered on personal computers. Android OS offers what is needed in terms of popularity across different platforms, manufacturers, users and developers; in addition to being an open-source coded OS. In this thesis two sections are covered. First is the analysis for the Android platform and answering the following questions: What are available 2D/3D modeling apps on Google-Play (Android Market)? Can these apps be used in true design applications? What are these apps offering i.e. solid or surface modeling? What is the difference between both? What is missing in the market and how to close the engineering-need gap available? In the second section a solid 3D CAD app that is designed and programmed (from the point-of-view of this work) that offers