Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
Newton Mail - Newton is a fully featured mail client available for Android, iOS, macOS and Windows.
Aqua Mail - Android Mail Client.
myMail - myMail is the smart email app for managing all your accounts on iOS and Android.
Gmail - Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
ProtonMail - Secure email with absolutely no compromises. Get your free encrypted email account today.