About this app

Keriphos (λαμπάδα) is the little oil lamp that burns before the icons in an Orthodox home. Orthodox saints, feasts & daily prayer, in one quiet app.

Keriphos helps you keep each day with the Church: today’s saints, the feasts and fasts, the daily Scriptures and prayers, and, when you need one, a patron saint. It is a free, independent project, not an official publication of any Orthodox jurisdiction. It works offline once installed.

Sources

• Saints and feast days: compiled from public calendars and encyclopedic sources (Wikipedia, OrthodoxWiki, Wikidata). Descriptions are summaries written from those sources; where little is known we say so instead of inventing details.
• Icons: freely licensed or public-domain images from Wikimedia Commons, including the Russian “Lives of the Saints” icon series and the Menologion of Basil II. Each saint page links to the original file and its license.
• Scripture: the Orthodox Bible. Old Testament: the Septuagint in Sir Lancelot C. L. Brenton’s translation (1844/1851), in Orthodox canon order with every Anagignoskomena book (Tobit, Judith, Esther with the Greek additions, 1–3 Maccabees, Wisdom, Sirach, Baruch, Letter of Jeremiah, Daniel with the Song of the Three, Susanna, Bel and the Dragon, Prayer of Manasseh, 1 Esdras, Psalm 151; 4 Maccabees as an appendix). New Testament: King James Version (1769 text). All public domain, from eBible.org.
• Prayers: Isabel F. Hapgood, Service Book of the Holy Orthodox-Catholic Apostolic (Greco-Russian) Church (1906), public domain (Cornell University Library scan via the Internet Archive), plus King James Version Scripture. The Jesus Prayer and the short prayer to a patron saint are traditional formulas.
• Daily readings: Epistle and Gospel references follow the Byzantine lectionary as used by the Orthodox Church in America, taken from the open-source Orthocal project (MIT license, © Brian Glass). Computed for 2020–2060 (New and Old Calendar) by running the Orthocal lectionary engine (MIT) offline; spot-checked against oca.org across several years. Composite Vespers readings (selected verses) show the verses or link to the chapters.
• Fasting: computed in the app from the date of Pascha (Julian computus) and the fixed-feast cycle: Great Lent and Holy Week, the Apostles’, Dormition and Nativity fasts, Wednesdays and Fridays, fast-free weeks and the strict days (Beheading of St John, Exaltation of the Cross, Theophany Eve). It follows common Slavic/OCA practice and agreed with the Orthocal/OCA calendar on 99% of days in 2026–2027. Local practice varies (Greek practice is lighter in the Apostles’ Fast, for example): ask your priest or spiritual father.
• Troparia: only public-domain texts are quoted; otherwise a simple traditional prayer is shown and labeled as such.

Credits

• Church interior photographs on the home page: see photo credits (photographers and Creative Commons licenses).
• Hero artworks: public-domain icons and mosaics from Wikimedia Commons, credited at the foot of the Finder page.
• Fonts: Cinzel, Cormorant Garamond and EB Garamond (SIL Open Font License) via Google Fonts.

Privacy

No accounts, no tracking. Favorites, bookmarks and settings stay in your browser on this device.

Feasts, Psalter, plans & audio

Great Feast and Holy Week explanations are original short texts written for this app from the Gospels and Church tradition. Feast icons (public domain unless noted; CC BY-SA files are used under that licence with attribution):

• Nativity Of The Theotokos: Okänd - The Nativity of the Mother of God - NMI 151 - Nationalmuseum — anonymous  · Public domain · Commons
• Exaltation Of The Cross: Exaltation of the Cross - Palekh icon (19 c, priv.coll) — Anonymous Russian icon painter (before 1917)Public domain image (according t · Public domain · Commons
• Entry Of The Theotokos: Russian - Presentation of the Virgin in the Temple - Walters 372410 — Anonymous (Russian artist)Unknown author · Public domain · Commons
• Nativity Of Christ: Nativity (15th c., Annunciation Cathedral in Moscow) — Andrei Rublev · Public domain · Commons
• Theophany: Hermitage hall 143 - 10 - Icon with Theophany of Christ — Netelo · CC BY-SA 4.0 · Commons
• Meeting Of The Lord: Sretenie — AnonymousUnknown author · Public domain · Commons
• Annunciation: Благовещение Устюжское - Google Art Project — Unknown authorUnknown author · Public domain · Commons
• Palm Sunday: Entry into Jerusalem (Afon icon) — AnonymousUnknown author · Public domain · Commons
• Ascension: Ascension (1410-20s, GTG) — Anonymous Russian icon painter (before 1917)Public domain image (according t · Public domain · Commons
• Pentecost: The Descent of the Holy Spirit Novgorod — Unknown authorUnknown author · Public domain · Commons
• Transfiguration: Transfiguration by Feofan Grek from Spaso-Preobrazhensky Cathedral in Pereslavl-Zalessky (15th c, Tretyakov gallery) — Unknown artistUnknown artist · Public domain · Commons
• Dormition: Dormition of the Theotokos, Novgorod — Unknown authorUnknown author · Public domain · Commons
• Pascha: Greek - Resurrection of Christ - Walters 37751 — Anonymous (Greece)Unknown author · Public domain · Commons
• Holy Monday: John in Korovniki church - patriarch 05 Joseph (c. 1654, Yaroslavl) — AnonymousUnknown author · Public domain · Commons
• Holy Tuesday: Ecce homo from Venetian-Cretan school — AGDekjike · CC BY-SA 4.0 · Commons
• Holy Thursday: Icon last supper — AnonymousUnknown author · Public domain · Commons
• Holy Friday: Crucifixion of Jesus, Russian icon by Dionisius, 1500 — Dionisius · Public domain · Commons
• Holy Saturday: Entombment of Christ by Rublev's workshop (1425–7, T.S.Lavra) — Мастерская Андрея Рублева. A.Rublev's workshop · Public domain · Commons

Septuagint Old Testament and Psalter: Sir Lancelot C. L. Brenton, The Septuagint Version of the Old Testament (1844/1851), public domain, text from eBible.org. Kathisma and stasis divisions follow the standard Orthodox Psalter.

Fasting rules: Russian/OCA rules are computed in the app; Greek/Antiochian levels were computed with Orthocal’s Greek rules (Orthocal by Brian Glass, MIT licence) for 2020–2060. Daily readings for 2020–2060 were computed offline with the Orthocal lectionary engine and checked against oca.org.

“Listen” uses your device’s built-in text-to-speech voice; nothing is sent anywhere. Not included (copyrighted): the Prologue lives of saints and the full hymns of each day.