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.

Google Calendar - Spend less time managing your day & more time enjoying it

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.

Business Calendar - Powerful and easy to use calendar app for Android including weather, widgets and tasks.