Mobile workstation “Pin login” was added to TimeTrak Mobile from version 19.1 as per below:
https://timetrak.co.nz/blog/category/whats-new-timetrak-19-1/#Mobile-Workstation-(PIN-based-login)

From version 22.2.4 this pin login screen has been updated to also display the job and task details (if tasks are in use) as per below:

Details that display are for current or future entries based on the current day and time.

Yellow Tile = Non-Billable/ Non-Productive Time entries

Blue Tile =  Job/ Task Time Entry

Grey Tile = Appointment

Green Tile = Checked In