Recently, designer and developer Tom Stoelwinder released Anxiety. Anxiety is a very simple but highly effective To-do list application that allows you to easily create lists and to-dos inside those lists. Its main characteristics are its strong integration with OS X and a very clean interface, but there are other features that assemble it a truly perfect To-do list manager.

The purpose of Anxiety is very simple; to help you create to-do lists. whether you want to enter more details about a to-do, you just have to double-click on it and it will be opened by Mail or iCal so you can add more details. You can switch within your lists by choosing the one you want at the top of the window. Anxiety is very well integrated with OS X; you can synchronize your to-do lists with iCal and Mail so you can easily transfer them to other devices such as an iPhone or an iPod. By using Calendar Store, a calendar database integrated into Leopard, Anxiety permanently syncs your to-dos with iCal and Mail. You can modify, add, or

delete a task in Anxiety, Mail or iCal and the modification will be present in all three applications.

Another great point of Anxiety is its user interface. The look is the same as a HUD panel so it is completely integrated into the system. It’s very minimalist and clean, but that simplicity makes that app beautiful and enjoyable to use.

The interface has another great quality; its simplicity. Moreover, there are many ways to access that app; you can have it in your menubar or in your dock. You can additionally choose to have it permanently on screen which is great whether you always want to look at your to-dos. You can control much of the app’s appearance in the preferences; the maximum number of list rows, the elements you want in the footer, etc.

One of the best features of Anxiety is its price; it is completely free. You can download it at the developers website.

Original post by Gregoire