What is Flutter? Is it best mobile app development platform?

In recent years, the market for mobile application development has been overgrown. With the possibility of future expansion, it was anticipated that in 2019 it would serve 2.5 billion users and generate more than 80 billion dollars. The creation of cross-platform solutions, Android, and iOS have emerged as three critical sectors that are determining the market's future growth. The latter method, which forgoes the strength of native programming, evolved as a means of rapidly producing application