I plan to upload an Android Mobile Application to Google Play Store, I understand that Google Play have the User Data Policy to ensure the Published Mobile Application does not misuse the Users' data and Users' data will be well-protected.
Apps I plan to publish in Google Play Store :
It is a simple Money Management apps that allow user to keep track of their personal expense.
It uses Google Login API, which will acquired User's Google Account Info such as Email Address, Email Picture and Name.
The other Data the Apps will Require or Store are Expenses Data such as Expenses Item Name/DateTime/Amount
I have read the Developer Policy Center, I not 100% sure and certain with its policy.
My Uncertainty :
My Apps not limited to Offline Usage and have a Backup Data feature that will Take All the Data mentioned above from Users' Mobile Internal Database and Upload All of them to Firebase Online Database. The purpose is to allow user able to retrieve back all their data in a New Device, etc.
Now I have all the Users' Expenses Data in my Firebase Database,
So as long I mentioned All the User Data will be taken to save to Online Database and its purpose in the Privacy Policy, is my Apps did not violate any Rules of Apps Publish and Safe to be upload in Google Play?