If you delete the apk you will lose all your save files, so don't delete it unless you're willing to start again!
Only PC, Linux and Mac can be deleted without losing saves.
no, I mean when I have installed the new version, is it okay to uninstall the old one?
The new Android version installs on top of the old one - there is no "old version apk" left to delete.
when i installed the new version , the old version Will be auto replace?
