Does Google back-up application settings? In Settings &gt; Backup &amp; reset there is a "Back up my data" option under which it says "Back up app data...".

Does it really work?

Because I got into one of those "boot loops" and had to do a factory reset. After that I re-installed the apps I had previously installed, but the application settings were not restored by Google.

Do I need to do anything?
Only apps that are coded to use the Google service will back-up and restore data. See this post for more information.

Does the built-in Google app data backup work?