Everyday - Take a photo of yourself everyday.
Polymail - Native email app for email productivity.
Coach.me - Coach.me is a coach that goes everywhere with you, helping you achieve any goal, change any habit, or build any expertise.
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
HabitBull - HabitBull
Airmail - Airmail is a lightweight and lightning fast mail client for Mac.