Where can I be sure these users that Hengam prevent to uninstall my app are making money for me?

Hi, thanks for your question :) As Thomas said, with a higher number of users, you experience higher retention, new users can make more trust to your app so you will have more organic users, and your app growth rate is higher. In addition, we are developing LTV (lifetime value) prediction models in Hengam team to try re-engaging more valuable users with your best offers.

Research shows that if you have more users, your conversion rate is higher. So the rate is higher you will have more hope for income.