사목수첩 (meaning "Pastoral Notebook" in English) is an iPhone app designed specifically for Korean Catholic priests. It serves as a comprehensive reference guide, containing essential information for their pastoral activities. This Catholic application aims to provide priests with easy access to important liturgical texts and rituals.

With 사목수첩, priests can find various resources related to liturgical celebrations such as Baptism, Holy Eucharist (in Latin and English), Confession, Anointing of the Sick, and Marriage. Additionally, it includes basic blessing rituals and related ceremony guidelines.

The app features a weekly Sunday liturgical guide and readings, as well as prayers specific to the Holy Eucharist celebrated on the fourth Sunday of each month.

사목수첩 is a valuable tool that supports the pastoral work of dedicated priests who faithfully follow the teachings of Jesus Christ. It is provided by the Catholic Internet 'Good News' of the Seoul Archdiocese of the Catholic Church.