Nirow - Habit tracking: Automated, Siri-ed, Calendar-ed, and More!
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Streaky - Achieve daily goals and build your personal streak 🔥
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Taskful - Deadlines, meet your match.
eM Client - eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.