The frameworks use fundamentally different programming languages and UI rendering methods and vary in other characteristics.

Building mobile apps today can feel stuck in the past. Back in 2016, as a mobile engineer, I couldn’t get enough of Swift and Kotlin. They were sharp, powerful tools. But the landscape’s shifted.

Flutter, Google’s open source multiplatform application framework, has been seeing quite a bit of momentum lately, with both Google’s internal teams betting on it for projects like the new Play ...