/data/data/id.application.zombiesretreat2/app_webview/Default/Local Storage/leveldb/
In This Folder You Will Find .log File (Ex - 000004.log) , This File Is Your Most Recent Saved Data
In This Folder You Will Also Find .ldb File (Ex - 000003.ldb) , This File Is Contains Your Other Saved Data
Copy These File And Paste Them In The Same Location In Your Other Android Phone
I Don't Know If This Method Works , You Can Also Copy All The Files In The Folder And Paste Them In Your Other Android Phone
NOTE - To Open This Folder Your Android Phone Must Be Rooted Or You Can Use Adb ( Computer ) Terminal To Access This Folder.
REMEMBER - Make A BackUp Of The Files In Case Something Goes Wrong.