There are several ways to monetize mobile applications, including:
In-app purchases: Users can purchase additional features or content within the app.
Subscription model: Users can pay a recurring fee to access premium content or features.
Advertising: The app can display ads, and the developer earns revenue based on ad impressions or clicks.
If your app's income is solely from advertisements, it's possible to earn a significant amount of revenue, but it depends on factors such as the number of users and how often they use the app. The amount of income can vary widely, from very little to a significant amount.
It's important to note that it can take time and effort to build a successful app and generate income. It's essential to continue to support and update the app to keep users engaged and attract new users.
In terms of whether or not to be satisfied with the income generated from ads, it depends on your goals and expectations. If your primary goal is to create a fun and engaging game, then any income generated may be a bonus. If your goal is to create a sustainable business, then you may need to explore other monetization methods or consider expanding your app portfolio.