How would one go about developing a mobile app for iOS and Android?

Question

How would you code it? What would be the steps be of creating it? How long would it take for one person to do it?

Answer 1

For Android: Java, Kotlin's
iOS: Swift

Why you should totally switch to Kotlin:

It’s time to start using a modern programming language

I want to tell you about a new programming language called Kotlin and why you should consider it for your next project. I used to prefer Java but the last year I’ve found myself coding Kotlin whenever I could, and at this point I really can’t think of a situation where Java would be a better choice.

It’s developed by JetBrains, and the fact that these are the people behind a suite of IDEs, such as IntelliJ and ReSharper,really shines through in Kotlin. It’s pragmatic and concise, and makes coding a satisfying and efficient experience.

Although Kotlin compiles to both JavaScript and soon machine code, I’ll focus on its prime environment, the JVM.

So here’s a couple of reasons why you should totally switch to Kotlin (in no particular order):

0# Java Interoperability

Kotlin is 100% interoperable with Java.

1# Familiar Syntax

2# String Interpolation

3# Type Inference

4# Smart Casts

5# Intuitive Equals

6# Default Arguments

7# Named Arguments

8# The When Expression

9# Properties

10# The Data Class

11# Operator Overloading

12# Destructuring Declarations

13# Ranges

14# Extension Functions

15# Null Safety

16# Better Lambdas

17# IDE Support

Kotlin on Android. Now official

Why Kotlin is my next programming language

Scala vs Kotlin

Swift is like Kotlin

The Road to Gradle Script Kotlin 1.0

Introducing Kotlin support in Spring Framework 5.0

10 cool things about Kotlin

Kotlin full stack application example

Why I abandoned Java in favour of Kotlin

I used Kotlin at Hackathon

From Java to Kotlin

Kotlin Idioms

For details:

https://www.sololearn.com/discuss/1050538/?ref=app

Kotlin's Resources:
https://www.sololearn.com/Discuss/823843/?ref=app

Kotlin Resources
https://www.sololearn.com/Discuss/823843/?ref=app

https://www.sololearn.com/discuss/1050538/?ref=app