Breviary – Liturgia Horarum
Richard Královič
iBreviary
Paolo Padrini
Laudate
Aycka Soft
Catholic Calendar: Universalis
Universalis Publishing
Catholic Mass Times
Pablo Licheri
Amen: Catholic Bible & Prayers
The Augustine Institute
iMass
Anchoright Productions
Universalis
Verbum 가톨릭 성서 공부
Faithlife
Hallow: Prayer & Meditation
Hallow, Inc.