Yathit offers seamless online / offline user experience. Typically, even when your phone does not have internet connectivity, you can use as just like online. You can browse, view, create and edit record. When come back to online, you edit will be saved.
Offline is a premium feature.
When you enable offline, the last updated 400 records of the modules listed in the menu are regularly fetched and cached in phone database. If the record has relationships, its record are also cached.
You can view cache record statistics in the setting panel, as well as manual downloading records and committing draft edit.