As for now, in-app purchases, advertising, and subscriptions reveal themselves to be the most promising approaches to mobile app monetization. The above-discussed approaches are rather advisable to be aligned with the nature of the application and the target audience of the application. Some users will be okay with using free apps that offer in-app purchases, while others will be willing to pay for apps that do not contain ads. Finally, it must also be noted that the key to success is finding the right balance between revenues and fun for the users.