Lịch Âm Số is a Vietnamese lunar-calendar app designed for traditional observances. It combines âm lịch and dương lịch use with Thiên Cát AI, personalized văn khấn, memorial reminders, auspicious-date lookup, and explanations of Vietnamese customs and festivals.
Main features
- Thiên Cát AI: an AI assistant trained to answer questions about customs, festivals, folk knowledge, and traditional meaning.
- Personalized văn khấn: users can edit prayer text with family information and save it securely on the device.
- Memorial reminders: ngày giỗ and anniversaries can be managed across both lunar and solar dates.
- Auspicious-date lookup: users can check good dates for starting work, opening a business, and moving into a home.
- Vietnamese tradition focus: the app is built for Vietnamese cultural use, not generic calendar content.
- Modern interface: the design uses a minimal style with feng-shui color cues.
- Daily utility: calendar viewing, reminders, and traditional text access are designed for repeated use.
Product introduction
The strongest part of Lịch Âm Số is that AI is attached to a real cultural workflow. Users do not only ask for a prediction. They check lunar dates, prepare văn khấn, remember family observances, and ask Thiên Cát AI about customs or festival meaning.
That makes it different from most AI metaphysics apps. It is closer to a traditional calendar and ritual helper for Vietnamese families, with AI used for explanation and personalization.

