Google Calendar - Spend less time managing your day & more time enjoying it
Synology Note Station - Without needing to spend money on Evernote, Synology Note Station provides a desktop client to organize all your random notes in one place.
CalenGoo - Features | 1.0.175 for Android™
UpNote - A beautiful and clean cross-platform app for notes organizer
Jorte - Schedule books must be practical and has a good design.
Note Board - Productivity app. Save information like a sticky notes.