Open Sunday is a free iPhone app developed by Timo Schlueter. It falls under the lifestyle category and specifically targets shoppers with its shopping subcategory. Open Sunday provides you with a comprehensive overview of all the Sunday shopping opportunities across Germany, right on your smartphone.

The app offers several key features to enhance your shopping experience. Firstly, it includes a search function that allows you to find specific cities with open Sundays. Secondly, it provides a map view that displays the nearby open Sundays in your area. This feature is particularly useful for travelers or those looking to explore different shopping destinations.

Open Sunday also allows you to export the open Sunday dates directly to your calendar, ensuring that you never miss out on a shopping opportunity. Lastly, the app includes a favorites feature, enabling you to add specific open Sundays to your list for easy reference.

The developers are actively working on adding more features to the app and welcome any suggestions and ideas from users.