For developers, Flutter lowers the bar to entry for building mobile apps. It speeds up development of mobile apps and reduces the cost and complexity of app production across iOS and Android.
For designers, Flutter helps deliver the original design vision, without loss of fidelity or compromises. It also acts as a productive prototyping tool.
Flutter is for developers that want a faster way to build beautiful mobile apps, or a way to reach more users with a single investment.
Flutter is approachable to programmers familiar with object-oriented concepts (classes, methods, variables, etc) and imperative programming concepts (loops, conditionals, etc). No prior mobile experience is required in order to learn and use Flutter.