To be a mobile developer, one must possess software development skills and knowledge. This could be well-served by pursuing and earning an associate's or bachelor's degree in computer science or some similar discipline (management information systems, for example).
Mobile app development is a little different from general software development. Because resources such as memory, compute cycles, storage and bandwidth are both scarce and precious on mobile platforms, most significant mobile app development occurs within the context of some mobile development platform or another.
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