Use APKPure App
Get APK Extractor old version APK for Android
Extracts APK which is installed on android device and copy to SD card.
★Fast and easy to use.
★ Extracts all application,includes system applications.
★ One Can share APKs with others.
★ No ROOT access required.
★ By Default Apk's will be saved in /sdcard/APKExtracted/.
★ Compatible with latest version of Android 6.0
★ Saved apk format AppName_AppPackage_AppVersionName_AppVersionCode.apk.