Inandroid, package name should be unique to install it. So, in ur case ur package name would be same so it can't be installed on same account. The possible ways are : 1.Create a new account and install there. 2. Change the package name using apk tool. 3. Clone ur apk using Lucky Patcher or App cloner. – Ranjan.
SamsungGalaxy Store (Galaxy Apps) (noarch) (Android 4.0+) APK Download by Samsung Electronics Co., Ltd. - APKMirror Free and safe Android APK downloads Version: 4.2.24.3(422403110) for Android 4.0+ (Ice Cream Sandwich, API 14) Uploaded: This APK com.sec.android.app.samsungapps_4.1.02-2
LatestVersion Universal Stable Version ( Works On Almost Every Device Running Android 4.2+ ) Music 9.4.8.A.0.13 ( AFH ) Music 9.4.8.A.0.13( GDrive ) If you are installing this from a custom rom or other than Sony devices ( CyanogenMod, AOSP & etc ) , you will have to sign the apk using ZipSigner from Play Store in order to install the apk.95Ubpz.