15.5 Mobile design best practices | Design to support offline use | Design to device characteristics
There are two categories of mobile-specific design considerations: design for offline use, and design for the characteristics of the device itself.
The connection between an app and server may break if the device moves out of a coverage zone or wireless network range. If app users need access to the app at all times regardless of server access, design the app for offline use. When designing an app to support offline use, minimize server access in the UI design. Follow these best practices for offline mobile use.