As an avid reader, this app was very promising to me as another source of awesome reads. However, the app is very laggy. It freezes most of the time on both my phone and tablet. There is also very limited customization options on reading format. For example, it does not have an option to indent paragraphs and add spaces to each line on the book you're reading, I think it adds to eye strain. Also, please do impose very strict proofreading and editing of the books available and sold in the app