What is the best programming language to write an application for smartphones?

Question

Mobile development

Good day.
I want to create a small, but very optimized and fast mobile application, for all platforms, in which there will only be interaction with the API of other services.
What language is best suited for this?

Answer 1

A highly optimized application already guarantees performance based on the specifics of your task, the only question is whether you can optimize it.
If we talk about universal solutions, then:
- JavaScript (Ionic, React Native, Cordova, etc.).
- C# (Xamarin).
In terms of cross-platform solutions, there are no more standouts. Well, for a specific platform:
- Swift for Apple.
- Java/Kotlin for Android.
Again, in view of the specifics of your task, I would not worry too much and take JavaScript.

Answer 2

very optimized and fast

What is your negative experience of writing applications for mobile? What did the profiler tell you and what do you want to optimize and speed up?