AstroViet: Astrology Almanac

AstroViet puts two traditions in one app: the Vietnamese almanac and Eastern birth charts alongside a Western natal chart. Everything is computed on the phone — no network, no sign-in, and your birth data never leaves the device.

ALMANAC
• Lunar and solar date, the stem-branch of day, month and year, solar terms
• Auspicious or inauspicious day, the day officer, favourable and unfavourable stars
• Auspicious hours, with the current one shown on the dashboard
• What the day favours and what it warns against
• Home screen widget on iPhone and Android: unlock and the lunar date is there

BIRTH CHARTS
• Zi Wei Dou Shu: all twelve palaces, the four transformations, decade cycles
• BaZi: the four pillars, day master, strength and the five elements
• Western astrology: Placidus houses, ascendant, and the aspects between planets
• Today's transits and the annual solar return
• Synastry between two saved profiles

LOOKUPS
• House-building age check: Kim Lâu, Hoang Ốc, Tam Tai
• Couple compatibility: trines, clashes, harms and the sound elements
• Eight Mansions: your trigram, the eight directions, which suit your home
• Numerology from name and birth date
• Auspicious day finder across a date range
• I Ching: cast a hexagram, all 64 in King Wen order
• Tarot: 78 cards, Celtic Cross spread
• Vietnamese dream dictionary, northern and southern wording both

WHY IT IS ACCURATE
• Planetary positions from Astronomy Engine, within one arcminute
• Historical time zones, period by period: Saigon was UTC+8 before 1975, and getting that wrong shifts the ascendant a whole sign
• The star tables, hexagram tables and direction tables are each checked against a structural property of their own, not copied by hand

PRIVACY
Birth date, time and place stay on your phone. There is no server, no account and no sync — it works in airplane mode.

THREE LANGUAGES
Vietnamese, English and Chinese, switched in the Profile tab. Changing language changes the chart text too, not only the buttons.

PREMIUM
The free app gives you the whole almanac and all three charts, with 2 saved birth profiles. Premium removes every ad and lifts the profile limit. Monthly, yearly and a one-off lifetime unlock are available.

Monthly and yearly plans are auto-renewing subscriptions. Payment is charged to your Google Play account at confirmation of purchase and renews unless turned off at least 24 hours before the end of the current period. Manage or cancel in the Play Store account settings.

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