Kitab Riyadus Sholihin Lengkap is an android application developed by Qaila Studio, designed for those who seek to learn about Islamic teachings, with a focus on Riyadus Sholihin. The app offers an offline version of the Riyadus Sholihin book with Arabic text and its translation in Bahasa Indonesia. The app is available for free and falls under the Education & Reference category.

The app includes various features, including a search bar that allows users to type and find specific topics and verses that they are interested in. Users can also bookmark their favorite pages and access them quickly from the bookmark tab. In addition, the app provides a feature to adjust the font size to make it easier to read for all users. The app's user interface is simple, clean, and user-friendly, making it easy to navigate through the app.