I built a mood tracker app. To my surprise, it makes almost $100 in a week!

My app was on fire in the first week, reaching 150 downloads and an 80% retention rate. But then it fizzled out in the next month, getting only about 2 downloads per day. I was devastated by this sudden drop and I don’t know what went wrong.

Have you ever faced a similar situation with your app? How did you overcome it?

AppStore Link:
https://apps.apple.com/app/apple-store/id6450100126?pt=118301631&ct=indie-hacker&mt=8