Thunderbird
Open Source
Thunderbird is a open source mail client developed and maintained by Mozilla foundation.
Mailbird
Freemium
Mailbird is a desktop email client for Windows 7, 8 and 10.
Postbox
Commercial
Postbox is powerful, intuitive, ultra-customizable, speedy task manager.
Claws Mail
Open Source
Claws Mail is a free and open-source, GTK+-based email and news client. It offers easy configuration and an abundance of features.
OpenProject
Open Source
OpenProject is a web-based project management system for location-independent team collaboration.
Microsoft Office Outlook
Commercial
Microsoft Outlook is a personal information manager from Microsoft.
eM Client
Free Personal
eM Client is a Windows based e-mail client for sending and receiving e-mails, managing calendars, contacts, and tasks.
Mailspring
Freemium
Mailspring is a multi-platform email client.
The Bat
Commercial
The Bat! is an email program for Windows that protects the correspondence and empowers the users to handle large amounts of emails quickly and efficiently.
Microsoft Mail and Calendar apps help you stay up to date on your email, manage your schedule and stay in touch with people you care about the most.
Compare Spark with alternatives
Compare Microsoft Office Outlook and Spark and decide which is most suitable for you.
Compare Microsoft Mail and Calendar and Spark and decide which is most suitable for you.