A successful upload should take 2-4 minutes on Wifi, max. If it’s taking longer, please restart the app (and/or phone) and try again. Worst case, deleting and re-installing the app is a great method to eradicate a bug or issue.
Look out for these issues:
Alert PDF cannot upload photos. SOLUTION: Update the phone's iOS to the current version
Upload taking over 4 minutes. SOLUTION: Make sure you're using iPhone size photos. Using RAW or Hi Rez photos from a DLR will not be able to be processed with the phone's memory
Phone went to sleep. SOLUTION: Tap screen to ensure the phone stays open on the app until upload is complete.