[Help] Tried to install an app, (Legit, non-cracked) failed to install, now there is heaps of other data on my phone.

The app wouldn't install via iTunes, so I tried to install it via the iPhone configuration utility, but the install failed after about 5 minutes, now my phone which had ~2GB free has only ~300MB free. I tried a clean using iCleaner, It says it deleted around 1.5GB, which would be the app that failed. When I respring, there is no change to how much free space I have. Is there a directory in iFile where the app is stored during the install process as a temp file, or is there any other way to delete this junk? Rebooting didn't help.