Microsoft Office Outlook
Commercial
Microsoft Outlook is a personal information manager from Microsoft.
Airmail
Commercial
Airmail is a fast mail client for Mac and iPhone.
TypeApp
Free Personal
TypeApp is a mobile email client app.
Apple Mail
Free
Apple Mail is an email client included with the operating systems macOS, iOS and watchOS by Apple Inc.
Polymail
Freemium
Polymail is an email application for OS X and iOS known for its clean interface and additional features atop the Gmail platform.
Compare Spark with alternatives
Compare Microsoft Office Outlook and Spark and decide which is most suitable for you.