Board Thread:Touken Ranbu Pocket/@comment-28056144-20170801124448/@comment-1298438-20170802001928

Yes, do not uninstall the game (which will definitely delete your game data).

From my understanding, deleting the APK would simply be "taking out the door and putting on another one" to TKRB. I don't play via this method, so I cannot give you definitive answers.

Except definitely do not uninstall TKRB!! (D:)