Of course you will need a jailbroken device to do this.
Install deb files from Cydia [Tutorial]
STEP 1: Connect your iPhone to the PC via FTP or another iPhone file utility.
STEP 2: Go to /private/var/cache/apt/archives.
STEP 3: Download any tweak or app you desire but don’t reboot or restart springboard.
STEP 4: Refresh the /private/var/cache/apt/archives directory, and you should see your .deb file ready for download.
STEP 2: Go to /private/var/cache/apt/archives.
STEP 3: Download any tweak or app you desire but don’t reboot or restart springboard.
STEP 4: Refresh the /private/var/cache/apt/archives directory, and you should see your .deb file ready for download.