Salmos is a free-to-use book of Psalms for Android, developed by Mario Buezo. The app is designed to be easy to use and accessible to everyone, with simple language and a user-friendly interface. It is a great tool for meditation and reflection, especially during difficult times.

The app offers a variety of features, including a rich text display of the Psalms, an option to read the Psalm of your year of birth, and passages from the Bible for times of gratitude or difficulty. The app also has a search function for easy access to specific Psalms. Overall, Salmos is a great app for those looking to incorporate the Psalms into their daily routine.