Question

how make own app and publish on The STORE without PC ​

Answer 1

Assuming you are talking about developing mobile apps, You can use a few apps on the play store. Just search - "App builder" or "App maker". These apps (The good ones) will write the code for you. You'll just have to drag and drop elements and design your app.

But, remember, The best way to develop apps is by writing the code yourself.