Ideas for promotion? In your opinion, is it possible to launch the project?

Question

Android

The application has already been uploaded to the market 3 days ago. I wrote an ad to search for a promotion artist ... It turned out that I had to pay, but cash was not accepted. I am writing a question:
What promotion methods work best now? (paid installations, social networks, advertising platforms, leaflets on the street, etc.)
Does the application rating affect the formula for calculating the position in the top?
So how do you like my first project?
Money Keeper. Expense Manager

Answer 1

I wrote an ad to search for a promotion artist ... It turned out that I had to pay, but cash was not accepted.

AND ...?

Answer 2

I live in Cambodia, we do not have terminals for payment)) the possibility of any purchases is blocked on the card. I will see my friends in the evening. You need it now, but you don't care. I've digressed from the topic, and I issue a warning to myself. Let's talk about the topic.
What promotion methods work best now? (paid installations, social networks, advertising platforms, leaflets on the street, etc.)

Answer 3

An excellent application will be in demand even without promotion, especially for the topic you have climbed into. Financial accounting is the most saturated area in mobile applications.