For Automation maybe you could try IFTTT to pull data from one service to a google spreadsheet. Since it has dates associated with the data, you can later match them with your current dataset.
I know a service called exist.io that does a quite similar thing based on API. You can check that out if a central hub for all personal information is what you're after!
I know a service called exist.io that does a quite similar thing based on API. You can check that out if a central hub for all personal information is what you're after!
Cheers!