In this roundup, we are going to take a look at some of the best calendar apps that you can use across all your devices to sync important events, appointments, meetings, and more effortlessly.Ĭalendars are vital in our lives and we rely upon them to keep a track of our days and nights, our businesses, and everything else.Īccording to a survey, a total of 70% of the people said they rely on calendars to plan and schedule important events/activities.