App "Dynamic Dark Mode" and it's original author Zhiyu Zhu (sometimes known as Apollo/Apollonian) is NOT interested in your personal data AT ALL. We'll ensure others who contribute to this app also does not add any suspicous stuff to the app. If you can't trust us, the source of this app is hosted at https://github.com/ApolloZhu/Dynamic-Dark-Mode. For your information, it is licensed under GNU General Public License v3.0.
The owner of this app developer account, Haizhen Fan, is one of Apollo's legal guardians. She doesn't not have access to your personal data either (since we aren't collecting any).
However, you should read Apple's Privacy Policy to check what they report to us to help fix problems you encountered while using our app.