Polymail - Native email app for email productivity.
Deepnote - A collaboration platform for data scientists
Airmail for iOS - One of the best Mac email clients, now on iPhone
Gyana - Intuitive easy-to-use report and dashboard tool to stop wasting time on repetitive and tedious tasks.
Airmail - Airmail is a lightweight and lightning fast mail client for Mac.
Cron - Cron Calendar.