People have been accomplishing great things for Millenia without any digital assistance. Benjamin Franklin kept track of his to-do lists quite well enough with pen and paper. Marie Curie managed to develop her theory of radioactivity without the help of Evernote. Michaelangelo painted the Sistine Chapel without a Pomodoro timer.
Let’s get one thing out of the way first: You do not need any of the apps on this list in order to be productive.