Luopan - Feng Shui Compass

Clean by default, practitioner-deep when you want it. Bagua, 24 Mountains, Kua directions and a camera sight — the luopan for iPhone.

Luopan is a feng shui compass that reads the way practitioners read: facing and sitting at a glance, the bagua sector you're in, and the 24 Mountains when you need finer grain — on a dial that stays clean until you ask for more.

MEASURE • Live compass with degree ring, bagua life-area ring and highlighted sector • Facing and sitting directions together (a house that faces 137° SE sits 317° NW) • Lock the heading, save readings with the rings that were active • Tap the degrees to enter a heading by hand • Level indicator warns when the phone isn't flat; sensor accuracy pill; calibration

KUA • Enter a birth year and get your Kua number and East/West group • Four favorable and four unfavorable directions, with the Eight Mansions names • Kua overlay tints the compass so you see your directions while you measure

SIGHT • Aim the camera at a door or wall and read its facing on a heading tape • "Aligned" and "on the cusp" hints so you know when a reading sits near a boundary

RING LIBRARY Rings are drawn inner to outer; drag to reorder, switch on only what your method needs. Bagua (Later Heaven) and 24 Mountains (Earth Plate) are free. Luopan Pro (one-time purchase, no subscription): Heaven Plate, Human Plate, Former Heaven bagua, 64 Hexagrams (Xian Tian circle), Nine Stars and 28 Lunar Mansions — plus annual and monthly Flying Stars with the year's afflictions, Sight photo export and decimal (0.1°) readouts.

FLYING STARS • Xuan Kong chart for any period and facing — mountain, water and base stars, with the classical verdict • House Eight Mansions from the sitting direction, compared with your Kua

NEW TO FENG SHUI • A plain-English Learn section, tucked away in Settings so it never clutters the dial • How to take a reading, what the readout means, and how to map your home into eight palaces • Where to put the bed, desk, sofa, door and stove — worked out from your own Kua directions

Dark "obsidian" theme by default; a warm light theme is included. Everything stays on your device.

Phone magnetometers are accurate to a few degrees at best — treat readings near a sector boundary as uncertain, take several from different spots, and use a physical luopan for anything you would build on.