Ask HN: Advice on how to market a first iOS app?

I developed and published my first iOS app. It was accepted and now is available at Apple´s app store.

I developed this app firstly as a personal challenge and secondly in order to learn the whole process of creating a mobile product.

Any advice on how to market an app like that?

Best regards.

- Julio.

P.S: The app's link wasn't provided because this is not a promotional post :-)