We don’t collect your data. Period. We have no servers to put your data on. Even if Elon Musk were to ask for you data really nicely, we would say no, because we don’t have it.
Whoever you downloaded this app from might have some of your data. Please see their privacy policy for what they might do with it.
If you were to email us with a feature request, or with a bug, then we might end up with your email address, and whatever else you put in the email. So please be careful with your data, after all, it belongs to you.