iZip : A popular utility for managing ZIP, RAR, and 7Z files.
Tap the button in the top right, then tap Select . Tap the files or folders you want to include in the ZIP. Compress: Tap the More (...) button in the bottom right corner. Select Compress . Find your ZIP: If you selected one item, the ZIP will have the same name. Get a free iphone.zip
Locate and open the Files app on your iPhone. Select your files: iZip : A popular utility for managing ZIP, RAR, and 7Z files