Cristonautas 1 is an Android app developed by R1 Group, available for free, and categorized under Education & Reference, specifically Books. It offers an interactive and dynamic timeline of the Bible's salvation history, including exercises of Lectio Divina for Catholics. The app allows users to understand the context in which biblical texts were written, helping them to interpret and pray with the same.

The app's interface is user-friendly and easy-to-navigate, making it an excellent tool for anyone interested in studying the Bible. The timeline is divided into different periods, and each period has a list of events that can be clicked to reveal more information, including the corresponding biblical verses. The Lectio Divina exercises are well-designed and helpful in guiding users to reflect on the texts. Overall, Cristonautas 1 is a useful app for anyone looking to deepen their understanding of the Bible's history and message.