ToDo List is a free iPhone app developed by Ryoichi Fukugawa. It falls under the category of Business & Productivity. With ToDo List, you can create a tabbed interface to manage your tasks. You can create as many tabs as you want, and each tab can be assigned a unique name. The app provides a drag-and-drop feature that allows you to rearrange your tasks as per your priority.

The app also provides a backup feature, which means your data is safe in case of device failure. You can easily restore your data from the backup file. ToDo List also has an easy data migration feature that allows you to transfer your data to a new device without any hassle. Overall, ToDo List is a simple yet efficient app that can help you manage your tasks effortlessly.