Fantastical 2 - Fantastical, the Mac calendar app you'll enjoy using. Quickly create new events with natural language input and more.
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Drupe - Next generation contact manager and dialer.
Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...
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.