Cosmo's Logbook 1.14
the author of this app says:
A truckers log book that keeps track of hours of service, hours spent driving, on duty, in the sleeper, or on duty but not driving.
It also has a handy scale calculator, keeps track of "gross stears drives" and tandom "wt's," amongst many other features that should prove to be useful for truckers.
- Requires PocketC.