3 points
Your app has a button on its front page. No one ever presses that button. With good telemetry, you will know this and remove the button. The only thing you need to know is how many times each user opens the app and how many times they tapped that button. Crash reports can include the causes of errors. Without this data the app might have that unused button there forever and crash everytime anyone taps the donate button and you wouldnt know why you arent getting any dontaions.
Telemetry is usually collected on non metered networks. Usually it is opt-out by default, set by the user in the apps settings. Personally, I’d inform the user of this and let them decice on first startup.
