Wordzen - We write your emails for you. Literally.
Huawei Mobile Services - Huawei Mobile Services app comes up with features to help you in accessing a large number of advanced features such as payments, push notifications, and Huawei ID, etc.
InboxVudu - Spend 90% less time on e-mail.
Pushbullet - Pushbullet - Your devices working better together
Mailbutler - Mailbutler adds lacking functionality to email clients and increases your productivity
KDE Connect - Integrate Android with the KDE Desktop