Universalis is a comprehensive Catholic liturgical resource that provides daily readings, prayers, and information based on the General Calendar and various local calendars. This Books & Reference app offers users access to an extensive collection of content including Mass readings, Liturgy of the Hours, and 'About Today' pages with details on saints and feasts.

The application stands out by offering localized content for regions such as the UK, USA, Australia, and more, ensuring relevance and accuracy. Whether you're looking for NAB readings in the USA or the latest ESV in Great Britain, Universalis has it covered. Its offline functionality ensures that all content is available without an internet connection, making it ideal for travelers or those with limited connectivity.

For devout Catholics, this app serves as an essential companion for daily prayer and reflection, providing structured guidance through Morning Prayer, Evening Prayer, Night Prayer, and other canonical hours. The availability of audio options further enhances the experience, allowing users to listen to Sung Latin Compline or spoken English prayers.

Universalis boasts a rich set of features tailored for those seeking spiritual enrichment. One notable feature is its 'Mass Today' page, which seamlessly integrates daily Mass readings with the Order of Mass, creating a cohesive worship experience. Additionally, the app includes the Liturgy of the Hours, covering all canonical hours such as Morning Prayer, three daytime hours, Evening Prayer, Night Prayer, and the Office of Readings.

Another standout aspect is the inclusion of regional variations in Scripture readings. For instance, users in the United States receive RSV translations, while the rest of the world gets the Jerusalem Bible—with RSV available as an optional add-on. This localization extends to different editions of the Bible used during Mass readings, catering to specific national preferences like NAB in the USA and ESV in Great Britain.

Audio resources are another highlight, offering sung Latin Compline, spoken English Morning and Evening Prayers, Gospel readings, and even daytime Hours in Latin. These multimedia elements enrich the user's engagement with the material, providing both auditory and textual means of participation in daily devotions.

Universalis offers an extensive e-book library that spans every day of every year, providing users with perpetual access to a wealth of Catholic liturgical content. This includes daily Mass readings, the Liturgy of the Hours, and 'About Today' pages that offer insights into the saints and feasts of the day.

The application meticulously ensures copyright authenticity by incorporating authorized versions of scriptures and texts. Depending on the user's location, it provides readings from the NAB for the USA, the latest ESV for Great Britain, and the Jerusalem Bible for other regions, thus maintaining the integrity and legal compliance of its vast digital library.

By integrating licensed content across various local calendars such as those from the UK, USA, Australia, and others, Universalis not only broadens its reach but also guarantees that all liturgical texts are genuine and fully sanctioned for use within the Catholic Church.

One of the key strengths of Universalis is its exceptional format compatibility, which allows the app to operate seamlessly without an internet connection or additional downloads. This self-contained nature ensures that users can reliably access content in various formats, including text and audio, regardless of their location or connectivity status.

In addition to textual content, Universalis supports multiple audio formats for different liturgical prayers and readings. Users have the option to purchase or subscribe to audio versions of Night Prayer, Morning and Evening Prayer, the Gospel of the day, and more, all available in either sung Latin or spoken English renditions.

This versatility in format compatibility enhances user engagement by catering to diverse preferences and needs, whether they seek to read, listen, or both, thereby enriching their spiritual experience through technology that respects traditional practices.