Pitru Calendar

About this app

Pitru Calendar is a Tamil-first panchanga, designed for families who keep their ancestors close. Track the daily tithi, Tamil month and day, nakshatra, and paksha with names you already know — வளர்பிறை பிரதமை, தை 1, கார்த்திகை — the way Pambu Panchangam and Arcot Panchangam print them. Every day's panchanga is computed from the Vakya tradition; Vakya-vs-Drik differences are documented openly. For Iyer and Iyengar families, the app makes ancestor srardham observances easy to track. Add each ancestor once — name, gothram, the tithi and Tamil month of their passing — and the calendar surfaces every annual srardham, Mahalaya tarpanam, and aabdikam date going forward. Festivals included for Tamil Nadu and pan-India Hindu observance: Thai Pongal, Aadi Perukku, Aavani Avittam, Vinayagar Chaturthi, Mahalaya Amavasai, Vijayadashami, Karthigai Deepam, Vaikunta Ekadashi, Maasi Magam, Panguni Uthiram, and the full Ekadashi / Pradosham / Sankashti Chaturthi cycle. Privacy is the foundation: • Everything stays on your device. No analytics. No third-party tracking. No SDK. • Ancestor names never leave the app — Siri reads only dates, never names. • Backups are encrypted with your passphrase using AES-GCM-256. • iCloud sync (optional) uses Apple's private database with end-to-end encryption. Tamil VoiceOver is supported with proper language tagging. Apple Watch and Lock Screen widgets show today's panchanga at a glance. Siri shortcuts: "What's today's panchanga?" "When is the next srardham?" The app is bilingual: Tamil names are primary; English alternates are always present.

v1.8 — Parity and polish: the daily Sankalpam now recites the next nakshatra alongside next tithi/yoga/karana; the Festivals tab surfaces observances up to 10 years out instead of hiding anything past a year; and Settings replaces the Gotra + Veda text fields with pickers (the same 24-entry Gothram catalog Family uses, plus a 4-Veda menu). Sankalpam — next nakshatra: The sankalpam sheet already reads "[current tithi] (until X) then [next tithi]" for tithi, yoga, and karana. It now does the same for nakshatra — "[current] nakshatra (until X) pinpu [next] nakshatra yuktayam" in the English column and "[current] நக்ஷத்ர யுக்தாயாம் (X வரை) பின்பு [next] நக்ஷத்ர யுக்தாயாம்" in Tamil — so the anga-yukta sequence is complete for evening or late-morning recitations that cross the boundary. Festivals — full 10-year horizon: Observances whose next occurrence is more than a year out (Adhika Masam intercalary months, rarer sankramanas, some tithi-yoga combinations) previously showed "Outside bundled window" even though the panchangam data goes through 2035. The horizon now searches the full bundled range, so those rows show a real date. The "outside bundled window" label still applies for genuine edge cases where a rule has no match anywhere in the bundle. Settings — Gotra + Veda pickers: The Sankalpam Identity section's Gotra field is now a searchable list of the 24 seed gothrams (Bharadwaja, Kashyapa, Vasishta, Atri, Vishwamitra, Gautama, Jamadagni, Agastya, and 16 more), the same catalog used when picking a gothram for a Family member. The Sutra field becomes a Veda menu with the four Vedas (Rigveda, Yajurveda, Samaveda, Atharvaveda). Existing free-text values are preserved.

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1. First observed Sep 5, 2026 · 1:09 PM Free