Some ways in which telemetry can be useful - * Figuring out which features are not being used, and being able to change things according. This also covers UI d

Some ways in which telemetry can be useful - * Figuring out which features are not being used, and being able to change things according. This also covers UI decisions - Oh. We added this new toolbar. Is anyone actually using it? * Prioritizing localizations of a particular country / language. * An actual positive feedback loop for products that don't generate revenue. Most open source project maintainers just receive bug reports, feature requests, and sometimes hate mail. Telemetry information which roughly shows that even though there are some people complaining loudly about the software, there are 50k other users happily using it, is very very motivating. * Crash reporting / exceptions monitoring - Bugs are inevitable, and this gives so so much information. In my experience, very few users actually report bugs. Many might even just rate your app badly, and then ignore any attempts at following up. Especially cause they have deleted the app.