If you have to cancel a task, it's crucial to let the tasker know. 5. . What kinds of tasks can I post on the Tuffer App? The Tuffrummy master 51 bonuser App allows you to post a variety of tasks, such as grocery shopping, pet care, moving, cleaning, handyman services, and more. Please don't hesitate to contact customer support if you have any questions about whether your task falls inside the app's scope.