I want to make a video calling and money transfer app which languages in coding do I need to learn?

Question

also, I want to make it to book appointments as well.

Answer 1

That's a lot of different things to cram into one app. Not sure it's a good idea to do that.

Anyways, first of all you need to learn general app development. You could use JavaScript or Kotlin for that, I think, but there are other options.

You also need to learn about apps interacting with other things online, for appointments or money transfer. Probably you'll need your app to interact with APIs.
For money transfer, especially, you will need to learn about security, encryption, etc.

I suggest you search for languages for app development, pick one (without overthinking), and start by learning the basics and making smaller, simpler projects.

You need to build up to the bigger project. The language matters less - once you've learnt one, learning another is much easier. Plus, you'll understand which languages do what better with experience.
It's not necessary that only one language will be used, either. Many apps use multiple languages.

Answer 2

Go with javascript. I've heard C is tougher for beginners, plus JavaScript is used for Android apps.

Answer 3

Thank you for your Answer.
can you tell me which languages to start with like c, c++, or should I simply jump to JavaScript.