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

Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.

Jorte - Schedule books must be practical and has a good design.

Drupe - Next generation contact manager and dialer.

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

Simple Contacts - Contact lens prescriptions from home