Backup apps in ipa format on iphone no PC I need to restore my iphone firmware on my work computer, without installing any other program other than the iTunes already installed on it. I'm wondering if there's some kind if app or jailbreak tweak I can install on the iphone  and use to back up all my apps into ipa, copy to PC, then install later again.( I could always use appcake to install back )
Techicnally, what you want isn't impossible, but is pretty hard. I'd SSH in via your work computer, and copy applications from /var/mobile/Applications/. (/var/movile/Container/Applications/ in iOS 8). And, even that doesn't restore all your data.