eReaders Black Cat and Cideb are reading tools for learning languages. They are an educational tool and an application with audio books and reading tools that can be used by anyone to increase their vocabulary.

The application is based on the concept of the eReader, which is a tool that allows you to read any book, article, or any other document in any language. The eReader app for iOS has been developed with the purpose of providing a new and innovative reading experience.

This application has been designed with a simple and intuitive user interface that allows users to quickly navigate through the different sections.

It is also possible to access the application from any device, as long as it is connected to the Internet.