Luopan Compass

A beautifully accurate luopan compass with 24 Mountains, 8 Trigrams, and live degree readings — right on your iPhone.

Luopan brings the ancient Chinese geomantic compass to your iPhone. Whether you practise feng shui, study the I Ching, or simply want a beautifully rendered directional tool, Luopan gives you a faithful multi-ring compass that responds in real time to the way you hold your device.

The rotating dial mirrors a traditional luopan with four concentric rings rendered in SwiftUI Canvas. The innermost lacquer circle holds a classic red-and-silver magnetic needle. Surrounding it are the eight trigrams (Ba Gua) of the I Ching in the Later Heaven arrangement, then the 24 Mountains (Er Shi Si Shan) with both Chinese characters and pinyin transliterations, and finally a precision degree-tick ring calibrated to one-degree intervals.

Key features:

• Live compass heading with smooth spring animation
• 24 Mountains ring — active sector highlighted in gold as you rotate
• 8 Trigrams ring with element-coloured Unicode symbols and Chinese names
• Degree-tick ring with major (10°) and minor (5°/1°) tick marks
• True North / Magnetic North toggle for location-aware correction
• Level indicator showing pitch and roll for horizontal placement
• Save directions as named bookmarks with sitting (坐) and facing (向) notation
• Share any reading as plain text
• Calibration guide for accurate magnetometer readings
• Fully customisable rings — hide any layer for a cleaner view
• Dark mode support with adaptive gold and lacquer theme
• Haptic feedback on mountain sector crossings