Easy Reader - EasyReader can customize and improve the readability of long web articles
Mailspring - Mailspring is a mail client for Mac, Windows and Linux.
Enjoy Reading - Improve the readability of your favorites websites and get the best online reading experience.
Geary - Geary is an email application built for GNOME 3.
Purify - Read news articles with minimal distraction and scrolling.
The Bat - The Bat! is a secure desktop email client for Windows, designed to protect your correspondence against third-parties and to save your time.