Use APKPure App
Get Apk Manager - Extract your app old version APK for Android
Estratti installate applicazioni e li copia nella scheda SD.
★ Fast and easy to use.
★ Extracts almost all application,including system applications.
★ No ROOT access required.
★ Apk's will be saved in /sdcard/Apk Extract/.
★ Provided Search option to search applications.
★ Compatible with latest version of Android 6.0
★ Can extract multiple/all APK's by holding long click on any item.