Sygic Maps - The world's first online maps designed for travelers
Google Calendar - Spend less time managing your day & more time enjoying it
Calendar Lock PEA - Calendar Lock PEA is an encrypted desktop calendar with a day, week and month view. The shown calendars are never stored unencrypted on your disk, but exist only in the RAM. Platform-independent, Open Source, no installation or registration required.
CalenGoo - Features | 1.0.175 for Android™
Wanderlog - Collaborative travel planner with combined itinerary and map
Jorte - Schedule books must be practical and has a good design.