As a backend-now-fullstack dev, i can tell you mobile dev is actually harder than backend now. At its beginning, mobile apps were just a few simple screens mos

As a backend-now-fullstack dev, i can tell you mobile dev is actually harder than backend now. At its beginning, mobile apps were just a few simple screens mostly querying a server. It is now closer to the gigantic desktop apps of the 90s (because most have to work offline), except with a much higher quality UX, as well as deep OS interaction (check the list of iOS extensions), AND internet connectivity. That's why you see things like agent-based concurrency arriving on swift, which is mainly a client-side language.