Monetisation is far more than the money you make selling your app on the app store.
To start with, I am going to share one of the simplest things you can do to make money from your app even if you don’t think it is possible.
Every app should have a “more” screen. Basically, a large, prominent and difficult to miss button. This can even be included in paid apps if you want to increase your monetisation options as well but if you have a free app and don’t think there is any way to monetise it then this is the simplest and easiest thing you can do.
From this “more” screen you are able to promote any other apps that you have or simply include promotional affiliate links to other, related apps that you think might be of interest to the user.
This can be done with a static page or if you want more control you can create a dynamic screen that makes pushing updated screens out to your users nearly instantaneous.
The “more” screen should provide a “list” of apps ideally with the graphic to the far right, next to an initial description that is a teaser, and to the right a little “>” character that indicates there’s more info. When someone clicks that, it should go instantly to the listing for that app in the iTunes app store.
You need to be strategic about which apps you include and they should relate in some way, it doesn’t make a lot of sense to show a fitness app within a game app. Just use your best judgment and good old fashion common sense when working this out.
If you use affiliate links to the app store you’ll get paid a commission from anyone that purchases an app after tapping through your link however you’ll need to sign up for the affiliate program.