# I Ching Calendar — 周易万年历,老黄历农历吉日,五行命理,六十四卦,时辰吉凶

> All-in-one folk custom app for calendar, numerology, and life planning. (iPhone/iPad app by 帮兰 吴.)

- Source: https://appshunter.io/ios/app/i-ching-calendar/id6784172213 (this page in markdown: same URL + `.md`)
- Developer: [帮兰 吴](https://appshunter.io/developer/1729036017)
- Category: Utilities, Weather
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 13 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-07-21
- Data updated: 2026-08-11
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/i-ching-calendar/id6784172213/reviews.md

## What is I Ching Calendar?

1. App Introduction
Zhouyi Perpetual Calendar is an all-in-one folk custom APP for calendar lookup, auspicious date picking, numerology, schedule planning, naming and health care. It combines traditional Zhouyi sexagenary culture with modern schedule management, serving all your needs of date checking, event planning, eight-character analysis, naming and regimen as a portable daily assistant.
2. Core Functions
2.1 All-in-one Perpetual Calendar
Supports bidirectional Gregorian & lunar lookup from 1 AD to 9999 AD with one-tap switch. It contains full calendar data: 24 solar terms, festivals, sexagenary cycles, zodiacs, Five Elements, constellations and hours, to check any past or future date easily without paper almanacs.
2.2 Smart Schedule Reminder
Supports to-do lists, birthdays, anniversaries, countdowns and custom alarms. Match with daily almanac do’s & don’ts to avoid missing important plans.
2.3 Professional Auspicious Date Selector
Daily updated do’s and don’ts cover weddings, openings, house moves, construction, contracts, medical visits and more. Built-in lucky date filter & date day calculator simplify picking ideal days for major events.
2.4 Traditional Numerology Tools
Eight-character chart: analyze Five Elements, ten gods and yearly fortune
Marriage matching: evaluate compatibility of two birth charts
Purple Star, Qimen Dunjia, Liuren divination for advanced I Ching fans
2.5 Eastern & Western Divination
Daily hexagram, Tarot reading for love, career and wealth; Western horoscopes, zodiac fortune and synastry charts offer multiple fortune references.
2.6 Seasonal Health Manager
Female period tracker auto-calculates menstruation and ovulation. 12-hour TCM regimen guides provide organ care tips based on daily Five Elements.
2.7 Name Numerology Suite
Five-Grid name test for luck, career and marriage; baby naming matches birth eight-character Five Elements preferences; complete surname library for newborn and adult renaming.
3. App Highlights
Integrates ancient Zhouyi almanac with modern planner; 7 modules combined in one app; nearly 10,000 years of calendar data; simple intuitive interface; fit for daily users and I Ching enthusiasts.
4. Target Users
People checking lunar calendars, solar terms and almanac taboos; users picking lucky dates for weddings, openings and relocation; those needing birthday & to-do reminders; fans of eight-character, Purple Star, Tarot and astrology; expecting families naming babies and analyzing Five Elements; users tracking cycles and practicing seasonal health care.
5. Our Vision
More than a digital almanac, Zhouyi Perpetual Calendar is your portable folk culture library & life helper. Based on precise calendar data and authentic I Ching theories, it delivers one-stop services for daily arrangements, numerology, naming and health management.

Note: If you subscribe via Apple, payment will be charged to App Store Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Account will be charged for renewal within 24 hours prior to the end of the current period at the rate of the selected plan. Subscriptions and auto-renewal may be managed by going to Account Settings after purchase.
Terms of Service: https://docs.qq.com/doc/p/c4daffb608858ccb2630aff0fd24f321c541cdf1
Privacy Policy: https://docs.qq.com/doc/DUU1Sd1hoSWxqV1Jw

## Key features

- Perpetual calendar with Gregorian & lunar lookup
- Auspicious date selector for events
- Traditional numerology analysis (Eight-character, marriage matching)
- Eastern & Western divination (hexagrams, Tarot, horoscopes)
- Seasonal health manager with period tracker
- Name numerology suite for baby naming and renaming

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Professional | $1.99 | per 7 days |
| Professional | $2.99 | per month |
| Professional | $19.99 | per year |



## Frequently asked questions about I Ching Calendar

### What is the I Ching Calendar app?

I Ching Calendar is a folk custom app that combines traditional Zhouyi culture with modern schedule management. It offers features like calendar lookup, auspicious date picking, numerology analysis, naming services, and health management.

### Does I Ching Calendar have ads?

No, I Ching Calendar does not contain advertisements. The app is free to download and use, with optional in-app purchases available for enhanced features.

### What calendar data does I Ching Calendar provide?

I Ching Calendar supports bidirectional Gregorian and lunar lookup from 1 AD to 9999 AD. It includes 24 solar terms, festivals, sexagenary cycles, zodiacs, Five Elements, constellations, and hours.

### Can I Ching Calendar help me pick auspicious dates?

Yes, the app features a professional auspicious date selector that is updated daily. It covers events like weddings, openings, house moves, and medical visits, with a built-in lucky date filter.

### What numerology tools are available in I Ching Calendar?

I Ching Calendar offers an Eight-character chart for analyzing Five Elements and yearly fortune, marriage matching for compatibility, and advanced divination tools like Purple Star and Qimen Dunjia.

### How does I Ching Calendar help with health management?

The app includes a seasonal health manager with a female period tracker that auto-calculates menstruation and ovulation. It also provides 12-hour TCM regimen guides based on daily Five Elements for organ care.

### What devices is I Ching Calendar compatible with?

I Ching Calendar is supported on iPhone, iPad, and iPod devices. It is suitable for users aged 4 and up.

### How often is I Ching Calendar updated?

The latest version of I Ching Calendar is 1.1, which was last updated on July 25, 2026. The app was initially released on July 21, 2026.

## Version history (last 2 releases)

### 1.1 — 2026-07-25

Added detailed introductions for festivals. Tap any festival to view the full details.
Added detailed introductions for surnames. Tap any surname to view the full details.

### 1.0 — 2026-07-21

No release notes.

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All apps by 帮兰 吴: https://appshunter.io/developer/1729036017

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*