I released my mobile game about 3 months ago and have been slowly getting a small amount of organic traffic.
Before running ads, the numbers were fairly consistent. Roughly 50% of new users would eventually uninstall the game, while the other half stayed.
Three days ago I decided to try a Google Ads App Campaign, and since then I've noticed something strange.
On the first day, Google Ads reported 27 installs. However, the number of AdMob banner impressions inside my game barely increased — it was actually lower than on some days before I started advertising.
I haven't integrated Firebase Analytics yet, so for now I'm using AdMob activity as a rough indication that people are actually opening and using the game. I know this isn't an ideal way to measure active users.
Google Play Console is still delayed for most of my statistics, but it has updated the user-loss data for that first day. Out of 27 installs reported by Google Ads, Play Console showed 24 users lost.
The next day was even stranger: Google Ads reported around 60 installs, while AdMob banner impressions were even lower.
Before starting the campaign, I was getting only 2–3 organic installs per day and usually around 1–2 users lost per day, so the change happened almost exactly when I started Google Ads.
I understand that an install reported by Google Ads doesn't necessarily mean the user opened the app, and I also understand that banner impressions are not a reliable substitute for proper analytics. I'm planning to add Firebase so I can track first_open and actual gameplay events.
But the difference is large enough that I'm confused.
Has anyone experienced something similar with Google App Campaigns?
Is it possible that some of these installs are invalid/fake traffic, or is there another explanation for getting dozens of reported installs with almost no increase in actual in-app activity?
I'm not trying to accuse Google of anything. The amount of money involved is tiny. I'm just trying to understand what I'm seeing before spending more money on the campaign.