Digital books themselves are not a novelty. Thus, there are many ebook readers and their corresponding apps to be found scrimmaging the market. They produce satisfactory results for literature and works of reference - however, their are not suitable for active studying.
To study does not merely mean «to read and to understand», it also includes reflecting, taking notes, examining cross references, solving exercises, summarizing. beook solves this problem.
The beook app is a platform for digital teaching material of any kind provided by miscellaneous publishers, educational institutions and authors. Next to Android and iPad it is also available for iPhone, Windows and Mac computers.
Simply try it out yourself.