FAQ · 奇門遁甲

Questions, answered plainly

The tradition, the app, your account, and the plans — explained in the same teacherly voice you’ll meet inside.

The tradition

Do I need to know QMDJ already?
No. Newcomers are guided step by step, while serious students see the full, unsimplified chart. You can start learning as you read — no prior knowledge required.
What is Qi Men Dun Jia?
奇門遁甲 (Qi Men Dun Jia) is a classical Chinese system for reading the energy of a moment — where opportunity, obstacle, and timing sit across nine palaces, eight gates, and nine stars. It’s one of the most precise of the Chinese metaphysical Three Styles 三式, used for strategic decision-making and timing.
What can I use QMDJ for?
Traditionally, Qi Men Dun Jia is used for choosing auspicious dates and times for important events — from business negotiations to travel, ceremonies, or personal milestones. It helps you align action with the most favorable timing.
Is this fortune-telling?
No. Unlike horoscopes, QMDJ is a structured system: each hour maps to a precise chart. Aye-Eye Qimen interprets the chart in concrete vocabulary — never vague, one-size-fits-all predictions. What you do with the reading is yours.
How is the chart calculated?
The chart is calculated from the year, month, day, hour, and place you provide, using the classical construction: solar terms, the Yin/Yang Ju sequence 陰陽遁, and the placement of gates, stars, deities, and stems across the Nine Palaces. The full grid is always shown — exactly as a practitioner expects to read it.
What are the Four Pillars 四柱?

The Four Pillars are the year, month, day, and hour of a birth or event. Each pillar is expressed as a stem-branch pair (天干地支), and together they form the foundation of a Qi Men Dun Jia chart:

Year — overall cycle and generational influence · Month — seasonal context · Day — personal alignment · Hour — the precise moment’s energy.

In Aye-Eye Qimen, the chart is always calculated using all four pillars plus the location — ensuring accuracy for newcomers and practitioners alike.

The app

What can I do for free?
With Free, you can cast today’s chart and your birth chart 命局, read the full Nine Palaces, get three AI interpretations a month, save up to three charts, and use the glossary and study basics — all with no card and no expiry.
Can I cast a chart for any date, hour, or place?
Casting for any date, hour, or location is part of Pro. Free focuses on today’s chart and your own birth chart — plenty to begin learning the method.
What is Date Selection 擇日?
Date Selection lets you name what you’re planning — a contract, a move, a conversation — and choose a range of dates. Aye-Eye Qimen scores each day and hour against your goal and your chart, so you can select an auspicious window. It’s a Pro feature.
Which devices does it run on?
Aye-Eye Qimen is built mobile-first for iOS and Android, with the same rigorous chart engine on every surface. You can begin free in your browser today.

Account & privacy

Do I need an account to begin?
You can explore Aye-Eye Qimen freely without signing up. To save charts or receive interpretations, you’ll need a quick free sign-up — this ensures your charts and notes follow you across sessions and devices.
Is my birth data private?
Yes. Your charts and birth data belong to you. They are used only to generate readings — never for advertising, and never sold. The email you provide is for replies, not for marketing lists.
Can I export or delete my data?
Yes. Charts and readings can be exported (PDF export is included in Pro). You can also request deletion of your account and all data at any time — simply write to support@qimen.world, and we’ll take care of it.

Plans & billing

How does tier access work?

Aye-Eye Qimen offers three tiers, each unlocking deeper tools while always showing the full Nine Palaces chart:

  • Free — Today’s chart, your birth chart, the complete Nine Palaces grid, plus three AI readings per month.
  • Pro — Unlimited interpretations, Date Selection 擇日, and casting for any date, hour, or place.
  • Master — Reading on behalf of others 代占, with client profiles and per-client history — designed for practitioners who advise.
Is Free really free?
Yes. No card, no trial clock. Free is the trial, with no expiry, and you keep everything you read.
When do paid plans open?
Soon. Pro and Master are designed and priced, and billing is being finalized. Begin free today — upgrading later won’t affect anything you’ve already saved.
What’s the difference between Pro and Master?
Pro is for reading your own charts in depth: unlimited interpretations, Date Selection 擇日, and full reference. Master adds reading on behalf of others 代占, with client profiles, per-client history, and a higher AI ceiling — for practitioners who advise.
What does an AI interpretation cost me?
Nothing beyond your plan. Free includes three per month; Pro and Master are unlimited under fair use, with only a brief pause if usage is extraordinary. We never charge per reading.
Can I change or cancel my plan?
Anytime. Upgrades, downgrades, and cancellations take effect at the next billing cycle, and your saved charts and notes stay with you regardless of tier.

Your charts are yours — private, portable, and under your control.

Still have a question?

Questions about the classics are always welcome, never too basic. Write in and we’ll reply in the same spirit.

Contact us