Седьмой этаж. Летняя история is a book application developed by Digital Books. This free app is part of the Open Book series and falls under the Education & Reference category. It is a story from the lives of the characters in the novel "Седьмой этаж" which took place during the summer holidays before the final events. The story revolves around the lives of the characters and how they deal with the choices they have made. The app has an easy-to-use menu that allows readers to customize the display of the book according to their device's specifications. The app is lightweight and does not require many resources from smartphones and tablets. The app does not send SMS from your phones to premium numbers nor does it collect your personal information. If you liked the book, you can leave a review on the app store.