OIOA has three kinds of features.
Family and people. These are the Family Tree with tithis and remembrance dates, shared contacts that reach every member’s phone book, Family and Groups with events that ring as alarms, reminders that repeat by your calendar, and cards for joy and for loss. They’re the same for every community. Shared features use an OIOA-ID and a local-first SYNC.
Calendars and timings. These change with the community you choose in Settings, because each tradition reckons time in its own way. Each month shows in your community’s own dates, calculated or stored on your phone so it works offline. The panchang, Choghadiya, Hora, Rahu Kaal and Shubh Yoga belong to the Hindu and Jain Home screens; prayer times and Qibla and the Zakat calculator to the Islamic Home screen; Navkarshi times to the Jain Home screen. The Parsi and Sikh/Punjabi Home screens have calendars of their own.
Everyday tools, such as holidays with a long-weekend planner and the GST calculator, are the same for everyone.
Browse every feature below, or see them at work in the use cases.
- Family TreeBuild your family tree with father's name, birth, marriage and death tithis, remembrance dates and WhatsApp invites. Free, private and made for India.
- Shared contactsKeep one shared contact list for your family or group. Members who opt in get every entry in their phone's Contacts app, kept up to date automatically.
- FamilyCreate a private Family in OIOA: shared contacts on every phone, family events that ring as alarms, upcoming birthdays and a family tree, free.
- GroupsOIOA Groups: updates and events with alarms, a shared contact list on members' phones, admin-only posting and reporting. For societies, weddings and more.
- RemindersBirthdays and remembrance days with real alarms, notes that repeat by tithi, Hijri, Roj/Mah or Nanakshahi date, and Ekadashi reminders.
- CardsMake cards in 13 languages: Shok Sandesh, Shradhanjali, prayer meeting, wedding, birthday, festival and more, with a photo and ready messages. Free.
- OIOA-ID and syncHow OIOA-ID and SYNC work: Family, Family Tree and Group changes are saved on your phone first and uploaded when you tap SYNC. Nothing is silently lost.
- Community calendarsSee the month in your own calendar: Hindu lunar or regional solar months, Jain months by sect, Hijri, Parsi or Nanakshahi, with the English date alongside.
- Offline calendarsOIOA shows your community's own calendar first, tithi, Hijri, Roj/Mah or Nanakshahi, calculated or stored on your phone so it works without internet.
- PanchangSee today's panchang for your location: tithi, nakshatra, paksha, lunar month and Adhik maas, worked out on your phone and available offline.
- TithiKnow today's tithi and paksha for your location, when it began and when it ends. OIOA calculates the lunar day on your phone, online or offline.
- NakshatraSee which of the 27 nakshatras the Moon is in now, and when it moves on. Jain users also get the 28-nakshatra list. Calculated on your phone.
- ChoghadiyaToday's day and night Choghadiya for your city: Amrit, Shubh, Labh, Chal, Udveg, Rog and Kaal, with a live slider. Works offline on Android and iPhone.
- HoraSee which hora (planetary hour) is running now and the next one, worked out from your local sunrise and sunset. On the Hindu and Jain Home screens.
- Rahu KaalToday's Rahu Kaal for your exact location, worked out from local sunrise and sunset. See when it starts and ends, online or offline, in 14 languages.
- Abhijit muhuratToday's Abhijit muhurat for your location: the auspicious window around local noon, calculated from your sunrise and sunset. Online or offline.
- PanchakOIOA shows Panchak on the Home screen only while it is running, with when it ends. Learn what Panchak is and how it's calculated from the Moon's position.
- Shubh YogaFind every Guru Pushya, Ravi Pushya, Amrit Siddhi and Sarvartha Siddhi yoga in a year with OIOA's Shubh Yoga finder, calculated offline for your city.
- Prayer times and QiblaOffline prayer times with Karachi, MWL, ISNA, Egyptian, Umm al-Qura or Jafari methods, Hanafi or standard Asr, and a private Qibla compass.
- Navkarshi timesJain pachchakkhan times from your local sunrise: Navkarshi, Porshi, Sadha Porshi, Purimaddha and Avaddha, calculated offline for your city.
- Holidays and long weekendsNational, state and bank holidays for every state and UT, with a long-weekend planner that uses your weekly offs and leave budget. Saved for offline use.
- GST calculatorA quick GST calculator in the OIOA app. Understand inclusive and exclusive GST, CGST, SGST and IGST, and today's slab structure. Results are indicative.
- Zakat calculatorEstimate Zakat at 2.5% of net eligible assets in OIOA. Enter your own nisab threshold; nothing is uploaded and no market data is fetched.
- Match-makingCompare two birth profiles by nakshatra, Tara, rashi and planetary lords. A traditional reading with no invented percentage, calculated on your phone.
- Daily predictionOIOA's daily prediction is profile-based and worked out on your phone using traditional methods. What it's based on, and how to read it sensibly.
- Multi-languageUse OIOA in English, Gujarati, Hindi, Marathi, Bengali, Tamil, Telugu, Kannada, Malayalam, Odia, Assamese, Punjabi, Arabic or Urdu. One toggle switches it.