Dealing with an issue where Google Analytics reports different DAU/MAU numbers than Fabric for an Android App.
The numbers are vastly different, GA shows much greater numbers than what Fabric shows.
What could be the cause for this?
Also which number is more correct?
They're both wrong. Why? Because "daily active users" has no meaning. What does "active" mean? Every company calculates it differently. So neither one is "correct" they're both "correct" by their own definition. Unless the company open sources the code they use to determine it, there's no way to tell which one is likely to be closer to what you want.