Daily Readings by Dungeon Innovations is a free Android app that provides you with a daily guide to Catholic Mass readings. The app has complete readings for the years 2015, 2016, 2017, 2018, and 2019, presented daily in an easy-to-read text and user-friendly interface. The app's contents are completely accessible even if you are offline.

The app comes with several features, including readings up to December 2021, a calendar view for easier access and navigation, a guide on the feast days and liturgical celebrations, and a guide on the books of the Bible and their abbreviations. The app's easy-to-use interface makes it simple to navigate and use. Overall, Daily Readings is a great app for Catholics who want to stay up to date with their daily Mass readings, and it's completely free to use.