Trello, Todoist, Workflowy, ClickUp, TickTick, Habitica, Focalboard, Org mode, Zenkit, Lifetick, Quire, Tasks.org, Remember The Milk, iProcrastinate, Zendone, DoItRight, Noteworthy+, Simpleology, Simply Done, The Outliner of Giants, task.php, SS Birthday Reminder Live, Kanban2go, Little Outliner, GoalStream, dooity, Flask Lists, NotesTab are some alternatives to MyTinyTodo.