
The data stored on your device is configurable based on your mobile offline profile and security. It doesn’t just include your bookings but all of the records required to do your work potentially including: work orders, work order products, work order services, service tasks, inspections, accounts, contacts, assets, functional locations, notes, knowledge articles, iot device data, and many other records. Plus a few records required for the app to work correctly.
Further, depending on how your organization set up the offline profile, you may have many other potential records. And it could be downloading data for each of the relevant tables for a single day or for multiple days worth of work.
This all adds up, even if you’re not using many images.