Audacity is a hidden gem
I personally love that I’m able to drag and drop tasks because my day plan changes constantly due to the nature of my work, and this is the only app that gave me an instant way of readjusting it. It allows me to separate my work and personal tasks so easily, by allocating them to different lists and it shows it so clearly in my day screen! And the recent versions really took the Reminders feature to another level, as now I can have them at any custom repetition and even several times in the same day if I want!