To Do List Widget, developed by TAPUNIVERSE LLC, is a free productivity app for iPhone users. It allows you to create unlimited to-do lists and add them to your home screen. The app's main feature is that you can open and edit your lists directly from your home screen.

To get started, create a list in the app and add a widget in your preferred size. Then long-press to configure the widget. You can change colors and font size, and choose from three different color styles and two different layouts.

To Do List+ is a subscription-based version that unlocks all features and allows you to create unlimited notes. The subscription auto-renews at the end of the current period unless cancelled 24-hours in advance. You can manage your subscription and turn off auto-renewal by going to your Account Settings. Refunds will not be provided for any unused portion of the term, according to Apple policy.

Overall, To Do List Widget is a handy tool for keeping your tasks organized and easily accessible from your home screen.