I released the app beta quietly, only sharing it on LinkedIn, Facebook and Instagram. No IndieHackers, No HackerNews, No ProductHunt. I was not ready.
It started of slowly, I got to about 10 installs in less than 2 weeks. Then it started doubling every few days. 10, 20, 50, then 100, then 200.
I also added in Ads using Google AdMob, but I don't think that the Ads ever showed due to some technical issues. But I did not care, I was just happy that people were using my first ever mobile app.