Not useful for iOS 7

iOS 7 Mail supports viewing zip attachments natively, so you dont need this app to view email attachments.

Safari doesnt automatically unzip files to let you view them, so I needed this app to view a zipped Keynote presentation that I downloaded from the web. Unfortunately this app doesnt support viewing Keynote, and it doesnt support Open in... to let me open the presentation in Keynote.

The app also doesnt support landscape mode.

Im uninstalling this app.

Tony.T about Zip File Viewer, v1.4