Boomerang
Android
Gmail client with unique options
Android
Gmail client with unique options
Android
Bring your Gmail to your mobile device
Android
A free app for Android, by Italiaonline S.p.A.
iPhone
A free app for iPhone, by Spark for Mac.
Windows
A Cost-Effective and Practical Tool to Tackle Large Mailing Lists
Mac
Bring Google Inbox to your Mac
Windows
Send birthday wishes and season’s greetings (cards or messages) automatically.
Windows
A powerful eMail sender & scheduler for sending eMails automatically, since 2004
iPhone
A full version program for iPhone, by iKonic Apps LLC.
Windows
General Email Viewer
Windows
Efficient and convenient email client
Mac
Read Your Gmail And Do It From Your Desktop.