I am eager to learn app development for android and iOS. What programming language should I start to learn for app development?

Question

App Development Program Language

Answer 1

For mobile development:

https://code.sololearn.com/Wc0mkR5TeMKV/?ref=app

https://code.sololearn.com/W7fkt695n2vd/?ref=app

https://code.sololearn.com/W15402p78Rio/?ref=app

https://code.sololearn.com/W049XB43HrqG/?ref=app

Answer 2

Android: Kotlin or Java

iOS: Swift or Objective-C

Or you could learn React Native or Flutter & Dart which cover both operating systems.