Taskade - Make lists, organize your thoughts, and be inspired to get things done. Taskade is a collaborative space for your tasks.
Cron - Cron Calendar.
Freework - An easy way to keep track of your daily work
KosmoTime - The to do list with super powers
everyhour - Improve your life balance: what gets measured, gets managed
Vimcal - Vimcal is the world’s fastest calendar, beautifully designed for people who work remotely and live in their calendars.