Polymail - Native email app for email productivity.

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.

Morning Mail - A new way to manage your mail. Tinder for email.

Drupe - Next generation contact manager and dialer.

Airmail - Airmail is a lightweight and lightning fast mail client for Mac.

Simple Contacts - Contact lens prescriptions from home