Making money with free apps is a trending topic in the mobile application development world. The mobile app industry has been active for over a decade and is now generating billions of dollars in the revenue. Research shows from 2021 to 2022 the app and game revenues increased by 19.1% to $133 Billion and most of these Free Apps and games are free to download upfront and then charge for subscription or in-app purchases. Hence, it’s an estimate that the mobile app industry is most likely to hit a whopping $407.31 Billion by 2026. With more than three billion smartphone users, the industry keeps on expanding and bringing more revenue in the upcoming years. Source: https://www.agicent.com/blog/how-do-free-apps-make-money/