The duck app costs €1.99. Children can use it to independently and intuitively learn to read short sentences. The prerequisite for learning is reading individual words. After downloading, an annual license can be purchased for one device (in-app purchase). The app can then be used offline. - The app is divided into 15 reading levels. - It progresses in a differentiated manner, taking into account the task solutions. - The requirements increase from level to level with the skills acquired. - The