The best alternatives to Turtl are iTunes, Evernote, and Better Notes. If these 3 options don't work for you, we've listed a few more alternatives below.
USE-CASES: * Create notes throughout the day * Review your notes by day or week so you don't miss out on anything important * Create a plan of tasks for the day, and if the tasks are not completed, they will be rescheduled to the next day