Vecka is an iPhone application developed by Jan Boberg. This full version app falls under the Education & Reference category. Vecka is designed to help users know what week it is and when a particular week occurs during the year. The app also offers an additional feature to purchase, which enables users to see the sunrise and sunset timings.

The interface of the app is user-friendly and straightforward. It displays the current week number and date on the main screen. Additionally, users can swipe left or right to navigate through the weeks. The app also allows users to search for a specific week, which can be useful in various scenarios.