What is the easiest way to write a simple Android application without special skills?

Question

Android

Good day, dear colleagues.
There was a need to create a very simple application for Android. The essence is a specialized calculator (i.e., the user enters several initial digital parameters, presses "ok" and receives a ready-made calculation).
I don't have Android programming skills at all, I have an initial level of Java, I once mastered Visual Basic. I heard that there are designers of simple applications that are not difficult to understand even for a beginner. Having started the search, I was surprised by their abundance, I was a little confused, so I will ask knowledgeable people to advise something to achieve my goal (zero budget, of course).

Answer 1

What is the easiest way to write a simple Android application without special skills?

with the help of a third party - it's obvious!
I will explain: you (maybe!) will save on development, but support for this business will turn into hell.

Answer 2

it is better to write under java on Android Studio yourself. Check out the metanit site or start android tutorials.