It is a service that offers EPUB e-books to download and read offline on Android phones and tablets.

You can choose from thousands of EPUB e-books in the service, and they are all free to download.

You can also set up a free account and sync your reading progress between different devices.

You can set the row height to find the most comfortable reading layout, and also adjust the color matching of the background and text.

The app has a great and simple user interface. You can also switch between the different fonts.

It is also a great way to record your reading time and get a daily reading goal.