Hi Piddle team,
We appreciate your feedback on the app functionality in low to no-signal areas. @jon-kyme2 has flagged the relevant feature request for the Deliveries mobile app to work when not in signal - container scanning, POD pictures, signatures, completing deliveries, and I know this is on our development radar. You may have seen that we recently made an update to our Breww app, which, though mostly invisible on the user end, is designed to allow us to make updates and improvements like the feature linked here quicker and easier in the future and is part of the groundwork needed for us to implement such a feature.
Please remember to add your vote to the feature request and sign up for updates. If you have any suggestions on this functionality, please add your comments to that thread. I know the team looking after those requests will happily review them when it comes to building this feature.