I use it just to unzip and view attachments on the go and it works like a charm! Definitely an app on my list that needs to be installed when setting up an iOS device.
Only suggestion is that ads can be on the main screen. It doesnt need to be on every screen. That would be 5 stars!
ClaytonMaharaj about WinZip: #1 zip & unzip tool, v4.7.2