Introibo: TLM App

Introibo is a prayer companion built for traditional Catholics. Designed for the 1962 Roman Missal and Roman Breviary, it puts the entire liturgical day at your fingertips.

YOUR DAILY COMPANION The Hodie screen shows today's liturgical feast, the proper of the Mass, the Divine Office, fasting and abstinence obligations, the daily psalm, and the appropriate seasonal Marian antiphon, all computed from the 1962 calendar and reflecting authentic rubrics. See the liturgical colour, the season, and countdown to the next major feast at a glance. Follow one of seven patron saints with daily practice checklists and streak tracking to build a habit of devotion.

THE COMPLETE 1962 MISSAL The entire Ordinary of the Mass woven together with 574 daily Propers in their correct liturgical order. Latin and English rendered side-by-side for easy following. Every rubric is observed: 16 Prefaces automatically selected for each season and feast (Advent, Nativity, Epiphany, Lent, Holy Cross, Easter, Ascension, Pentecost, Trinity, Blessed Virgin Mary, St. Joseph, Apostles, the Sacred Heart, Christ the King, Requiem, and the Common Preface). The Gloria appears only when the rubrics prescribe and is correctly omitted in Advent, Lent, Passiontide, and on ferial days. The Credo is said on Sundays and major feasts only. Psalm 42 is omitted at the Prayers at the Foot of the Altar in Passiontide. The Gloria Patri is suppressed from the Introit during Passiontide. Proper Tracts replace the Alleluia from Septuagesima through Palm Sunday. The Canon includes proper Communicantes insertions for Christmas, Epiphany, Easter, Ascension, and Pentecost, and proper Hanc Igitur for Easter and Pentecost. The correct dismissal, Ite Missa Est, Benedicamus Domino, or Requiescant in pace, is chosen automatically. Three distinct Masses for Christmas (Midnight, Dawn, and Day). The Requiem Mass path with its proper Agnus Dei and suppressed blessing. Confiteor before Communion in the pre-1955 rite. All Propers searchable by saint, date, or scripture reference.

THE DIVINE OFFICE Pray all eight canonical hours of the 1962 Roman Breviary at the proper time: Matins, Lauds, Prime, Terce, Sext, None, Vespers, and Compline. The clock dial shows each hour at its traditional time with the current hour glowing. Class I and II feasts on weekdays correctly receive three-nocturn Matins with Te Deum. Te Deum omitted on Septuagesima, Lenten, and Passion Sundays. Short responsories at Prime, Terce, Sext, and None. Five psalms at Sunday Vespers. The weekly psalter distributes the correct psalms and Old Testament canticles for each day. Seasonal hymns with proper doxologies for Advent, Lent, Passiontide, Easter, and Christmas. Four seasonal Marian antiphons at Compline with versicles and collects, changing on the correct dates. The Saturday Office of the Blessed Virgin Mary and the Office of the Dead are included with their proper forms. Every common prayer written out in full.

67 TRADITIONAL PRAYERS Build a personal prayer rule for morning, midday, and evening. Browse 12 occasion categories: Morning, Before Mass, During Mass, After Mass, Meals, Marian, Eucharistic, Before Confession, For the Departed, In Temptation, For Protection, and Evening. Every prayer in Latin and English. The complete Rosary bead by bead. Fourteen Stations of the Cross with Tiepolo's 1749 engravings. Examination of conscience and confession preparation.

LEARN LATIN Ten lessons in Ecclesiastical pronunciation: vowels, diphthongs, consonants, stress, declensions, verbs, and word-by-word mastery of the Ave Maria and Pater Noster. 97 flashcards. Psalms and Vulgate reading exercises.

REFERENCE LIBRARY 41 articles. 574 searchable Propers. Mass history timeline. Liturgical glossary. Quick reference for the Holy Mass, Baptism, Eucharist, Penance, and Rosary.