Startup Idea: Note-Taking Application with Inclusive Diagramming for Android

Startup idea to develop a note-taking application for android tablets that not only allows for typing text but also provides the feature to insert basic shapes and color shortcuts for diagrams. The app would focus on providing a better, stylus-free user experience for students, specifically those studying more technical subjects like Computer Science.

I am a graduate student in Computer Science. I often want to make quick notes with basic diagrams, for which I'd rather not rely on something like MS-Word - I'd prefer to do this on my android tablet instead. Most apps that do let you do something like this do so by allowing stylus input - which fails if the screen isn't receptive enough. A basic note-taking app, with an option to insert basic shapes and shortcuts for colors would be a wonderful idea!.