The https://apps.apple.com link of my app clearly says i'ts only for iPhone: I also can't find the app in the App Store app on my Mac. So I assume what is said in app store connect trends is wrong

I found a SO thread: https://stackoverflow.com/questions/39908994/itunes-connect-app-analytics-sales-and-trends-showing-different-values You can read in the comments and follow the link to the next question for more details. The desktop downloads is coming from downloading with iTunes. This means on Windows or on macOS which is lower than Big Sur, Catalina for instance. Big Sur don't have iTunes. The app is then synced from the desktop to the iPhone. It shows which devices it was first downloaded on. Which is a bit misleading I think

The Search kit was only for macOS, I needed it on other platforms