delete the voice memo app
In order to permanently erase voice memos from iPhone, you just need to follow the steps mentioned below. 1  Step 1: Connect your iPhone to the computer and launch iMyFone Umate Pro. 2  Step 2: Click âErase Deleted Filesâ option. 3  Step 3: Click âScanâ. 4  Step 4: Click âErase Nowâ and then type in âDeleteâ to confirm.