How to create an app?

Answer 1

Since you put "java" as a tag, I assume you are asking how to create an Android app, so:

1) Download Android Studio (it's the official IDE but there are others available), it will let you develop, test and monetize your app.
2) Develop your app in Java or Kotlin (these are the fundamental programming languages for Android but you can use other cross-platform languages)
3) If you'd like an overview, Google offers a step-by-step training guide to develop Android apps: https://developer.android.com/training/index.html
4) To submit your app directly to Google Play, you will need to sign up for a Google Play Developer account, which costs a one-time fee of $25, and then publish it using the Google Play Developer Console.

Today I also attached to this other thread some references to older threads regarding app development in case you are interested: https://www.sololearn.com/Discuss/531804/?ref=app

Answer 2

@Paulax Its better to start with something new, android and iphone do not go together

Answer 3

Is it possible from there to adapt it to iphone or is better to use a different IDE from the start?